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Home >> Mercedes Benz >> 2012 >> ML63 >> Repair and Diagnosis >> External Pages >> Different car >> Section 280 (Overall Vehicle - 166 Chassis - 1 Of 9) >> User Information >> Abbreviations Of Signal And Circuit Designations For Wiring Diagrams - OV00.01-P-1001-28NBA

Abbreviations Of Signal And Circuit Designations For Wiring Diagrams - OV00.01-P-1001-28NBA

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MODEL 166 as of model year 2016 

MODEL 292 

Abbreviation Designation Notes
(+) Positive  
(+) SH Rear parking system distance sensors +  
(+) SV Front parking system distance sensors +  
(-) Minus  
(-) SH Rear parking system distance sensors, ground connection  
(-) SV Front parking system distance sensors, ground connection  
+12V Yaw rate sensor for lateral and longitudinal acceleration (B24/15) supply (M_SC)  
+5V Sensor voltage (5 V) throttle valve actual value potentiometer 1 (M16/6r1), throttle valve actual value potentiometer 2 (M16/6r2)  
1. Zyl. Cylinder 1  
115V AC1 "115 V" AC voltage 1  
115V AC2 "115 V" AC voltage 2  
12V 12 volt voltage supply  
12V(+) 12 volt voltage supply  
15 Signal for "circuit 15 ON" from relay circuit 15 (F58kR)  
15A Supply voltage for heating element in AdBlue® container (A103/1r1) via relay for AdBlue® (K27/7) supply  
15R Circuit 15R  
15R1 Circuit 15R (1)  
15R2 Circuit 15R (2)  
15_RMR Circuit 15 relay actuation (F58kR)  
2. Zyl. Cylinder 2  
2H_REL_1 PTC heater booster (R22/3) (Relay 1)  
2H_REL_2 PTC heater booster (R22/3) (relay 2)  
2H_REL_3 PTC heater booster (R22/3) (Relay 3)  
2H_REL_4 PTC heater booster (R22/3) (relay 4)  
3. Zyl. Cylinder 3  
30 Voltage supply from circuit 30  
30c In Circuit 30c input  
30 c Out Circuit 30c output  
30 L Left front side marker lamp (E1e6), turn signal light output  
30 R Right front side marker lamp (E2e6), turn signal light output  
30g Circuit 30  
30g_R_Off High Circuit 30G, relay for circuit 30g (F33k1) (Off High)  
30g_R_Off Low Circuit 30G, relay for circuit 30g (F33k1) (Off Low)  
30g_R_On High Circuit 30G, relay for circuit 30g (F33k1) (On High)  
30g_R_On Low Circuit 30G, relay for circuit 30g (F33k1) (On Low)  
30g_R_RL Circuit 30g supply for battery compartment prefuse box (F33)  
30L_FRA2 Left front side marker lamp (E1e6), turn signal light output  
30z Circuit 30z  
30_L Circuit 30, left  
30_R Circuit 30, right  
30_ZV_SRA Circuit 30_3 (interior illumination, headlamp cleaning system, central locking (CL [ZV]), fuel tank) from vehicle interior prefuse box  
30u Circuit 30 unsupported  
31 Ground connection  
31/1 Circuit 31/1 from right rear wheel arch ground point (W7)  
31/2 Circuit 31/2 from right rear wheel arch ground point (W7)  
31b Circuit 31b wiper motor park position (M6/1)  
4. Zyl. Cylinder 5  
49a L Circuit 49a left front turn signal light (E1e5)  
49a R Circuit 49a right front turn signal light (E2e5)  
49L Circuit 49L, left turn signal light  
49R Circuit 49R, right turn signal light  
5. Zyl. Cylinder 4  
54 Circuit 54, brake lights  
55 L Left front fog lamp  
55 R Right front fog lamp  
56a L Circuit 56a left high beam  
56a R Circuit 56a right high beam  
56a R (IR) Circuit 56a right high beam  
56b L Circuit 56b left low beam  
56b R Circuit 56b right low beam  
57 L Circuit 57 left front standing light and parking light (E1e3)  
57 R Circuit 57 right front standing light and parking light (E2e3)  
58 Multifunction steering wheel illumination  
58 L Circuit 58, left front side marker lamp (E1e6) with code (460) Canada version or (494) USA version  
58 R Circuit 58 right front side marker lamp (E2e6)  
58d Variable instrument/switch illumination  
58L Circuit 58L, left taillight and license plate lamp  
58R Circuit 58R, right taillight and license plate lamp  
5V 5 volt power supply  
6. Zyl. Cylinder 6  
87 Supply voltage for circuit 87/4 from circuit 87M relay (F58kN)  
87M1 Supply voltage for circuit 87/1 from circuit 87M relay (F58kN)  
87M2 Circuit 87 motor electronics 2  
87M3 Circuit 87 motor electronics 3  
87M4 Circuit 87 motor electronics 4  
AAV Actuation of activated charcoal filter shutoff valve (Y58/4)  
AB1 Dr+ Driver airbag squib 1 (R12/13) +  
AB1 Dr- Driver airbag squib 1 (R12/13) -  
AB1 PS+ Front passenger airbag squib 1 (R12/4) +  
AB1 PS- Front passenger airbag squib 1 (R12/4) -  
AB1, FA+ Driver airbag squib 1 (R12/13) +  
AB1, FA- Driver airbag squib 1 (R12/13) -  
AB2 Dr+ Driver airbag squib 2 ((R12/14) +  
AB2 Dr- Driver airbag squib 2 (R12/14) -  
AB2 PS+ Front passenger airbag squib 2 (R12/5) +  
AB2 PS- Front passenger airbag squib 2 (R12/5) -  
AB2, FA+ Driver airbag squib 2 ((R12/14) +  
AB2, FA- Driver airbag squib 2 (R12/14) -  
ABLV Compressor_supply  
ACC det ACC idtf.  
AGR Actuation of switchover valve for bypass exhaust gas recirculation cooler (Y85)  
AHK i.O. Trailer hitch OK, trailer hitch lock switch (S142)  
AHK n.i.O. Trailer hitch not OK, trailer hitch lock switch (S142)  
AH_T5 Supply voltage for temperature sensor upstream of diesel particulate filter (B19/9)  
AH_T6 Supply voltage for temperature sensor upstream of SCR catalytic converter (B16/15) (with code (U42) BlueTEC (SCR) diesel exhaust treatment)  
AL Liftgate control button signal  
ALDW+ Vibration motor for steering wheel supply  
ALDW- Steering wheel vibration motor ground connection  
Anst. Actuation for drive unit for roller sun blind on panoramic sliding sunroof (M12/5) (roller blind 1)  
Ant. Antenna  
Ant. GPS GPS input  
Ant. NOT Emergency call system antenna  
ARG_BYP Sensor signal for Hall sensor of bypass flap on EGR cooler (B90)  
A_S_AAV Fuel tank shutoff valve actuation (Y58/5)  
AT(-) Outside temperature ground connection (B14)  
AT_Sig. Outside temperature sensor signal (B14)  
Audio right Audio right  
Audio_2_(-) Audio 2 shield  
Audio_In 31 Audio shield  
Audio_left Audio left  
Audio_L_AV2 Audio 2 left  
Audio_R_AV2 Audio 2 right  
AP_kWR Engine rpm signal to power electronics control unit (N129/1)  
Audio_Shield Audio shield  
Aud_In_2_GND Aux_Audio_2_In_Ground  
Aud_In_2_l Aux_Audio_2_In_left  
Aud_In_2_r Aux_Audio_2_In_right  
Aud_In_2_shield Aux_Audio_2_In_Shield  
Aud_Out_1_GND Aux_Audio_1_Out_Ground  
Aud_Out_1_l Aux_Audio_1_Out_left  
Aud_Out_1_r Aux_Audio_1_Out_right  
Aud_Out_1_shield Aux_Audio_1_Out_Shield  
AUX1 GND Aux_Audio_1_In_Ground  
AUX1 Shield Aux_Audio_1_In_Shield  
AUX1-L Aux_Audio_1_In_left  
AUX1-R Aux_Audio_1_In_right  
AUX Supply AUX supply from electronic ignition lock control unit (N73)  
AV01_Aud_gnd AVo1_Audio_gnd  
AV01_Aud_l AVo1_Audio_left  
AV01_Aud_r AVo1_Audio_right  
AV01_Aud_shield AVo1_Audio_shld  
AV01_Vid_C AVo1_Video_C  
AV01_Vid_C_shield AVo1_Video_C_shld  
AV01_Vid_Y AVo1_Video_Y  
AV01_Vid_Y_shield AVo1_Video_Y_shld  
AV02_Aud_gnd AVo2_Audio_gnd  
AV02_Aud_l AVo2_Audio_left  
AV02_Aud_r AVo2_Audio_right  
AV02_Aud_shield AVo2_Audio_shld  
AV02_Vid_C AVo2_Video_C  
AV02_Vid_C_shield AVo2_Video_C_shld  
AV02_Vid_Y AVo2_Video_Y  
AV02_Vid_Y_shield AVo2_Video_Y_shld  
AV03_Aud_gnd AVo3_Audio_ground  
AV03_Aud_l AVo3_Audio_left  
AV03_Aud_r AVo3_Audio_right  
AV03_Aud_shield AVo3_Audio_shield  
AVi1 Vid_C AVi1_Video_C  
AVi1_Aud_gnd AVi1_Audio_gnd  
AVi1_Aud_l AVi1_Audio_left  
AVi1_Aud_r AVi1_Audio_right  
AVi1_Aud_shield AVi1_Audio_shld  
AVi1_Vid_C_shield AVi1_Video_C_shld  
AVi1_Vid_Y AVi1_Video_Y  
AVi1_Vid_Y_shield AVi1_Video_Y_shld  
AVi2_Aud_C AVi2_Video_C  
AVi2_Aud_C_shield AVi2_Video_C_shld  
AVi2_Aud_gnd AVi2_Audio_gnd  
AVi2_Aud_l AVi2_Audio_left  
AVi2_Aud_r AVi2_Audio_right  
AVi2_Aud_shield AVi2_Audio_shld  
AVi2_Aud_Y AVi2_Video_Y  
AVi2_Aud_Y_shield AVi2_Video_Y_shld  
AWL (+) Left front door exit and warning lamp supply (E17/3)  
AWL (-) Ground connection for left front door exit and warning lamp (E17/3)  
A_S_DMTLH Fuel tank heater diagnostic module signal output (A101)  
A_S_DMTLP Fuel tank pump diagnostic module signal output (A101)  
A_S_DMTLV Fuel tank valve diagnosis module signal output (A101)  
A_EKA Pulse width modulated signal (pulse width modulated signal) actuator motor for intake port shutoff (M55)  
A_LDR Pulse width modulated signal (pulse width modulated signal) boost pressure positioner (Y77/1)  
A_S_AGR2P Supply voltage for left exhaust gas recirculation actuator motor (Y87/2m1)  
A_S_HR (HSS) Actuation (plus) relay for circuit 87M (F58kN)  
A_S_SAM SAM on-board electrical system switchover  
A_T_AGR1M Right exhaust gas recirculation actuator motor ground connection (Y87/1m1)  
A_T_AGR1P Supply voltage for right exhaust gas recirculation actuator motor (Y87/1m1)  
A_T_AGR2M Left exhaust gas recirculation actuator motor ground connection (Y87/2m1)  
A_T_AGR2P Left exhaust gas recirculation actuator motor voltage supply (Y87/2m1)  
A_T_LSHVK1 Actuation of oxygen sensor heater for oxygen sensor at right upstream of catalytic converter (G3/4)  
A_T_LSHVK2 Actuation of oxygen sensor heater for oxygen sensor at left upstream of catalytic converter (G3/3)  
A_U_5VG1F Fuel tank pressure sensor power supply  
A_U_LSU1VM Virtual ground connection for oxygen sensor at right upstream of catalytic converter (G3/4)  
A_U_LSU2VM Virtual ground connection for oxygen sensor at left upstream of catalytic converter (G3/3)  
A_ZME Actuation of quantity control valve (Y94)  
A_P_TNA Engine speed signal (TNA)  
A_P_TNA Engine speed signal (TNA)  
A_T_DCP_M+ Supply voltage for actuator motor (M16/6m1) for throttle valve  
A_VNT Stationary heater switchover valve signal  
BRDS4_Sig. High-pressure fuel pressure sensor (B4/6) sensor signal  
BBV_Sig Right front brake wear sensor signal (S10/2)  
BFS Brake fluid level switch ground connection (S11)  
BLA Circuit 54 (BLA)  
BLS_H Brake light switch, high  
BLS_L Brake light switch, low  
BLS_M Brake light switch ground connection  
BPV_Sig Actuation of switchover valve for bypass exhaust gas recirculation cooler (Y85)  
BUB_L_EL Charge/discharge ECO start/stop function additional battery.  
BUB_M Measure ECO start/stop function additional battery.  
Button Trailer hitch lock signal switch (S62/24)  
B_F_RALS1 Sensor signal for level sensor full (A103/1b2)  
B_F_RALS2 Fill level sensor, sensor signal, reserve (A103/1b3)  
B_F_RALS3 Sensor signal for level sensor empty (A103/1b4)  
CH1+ Left front speaker (+) signal  
CH1- Left front speaker (-) signal  
CH2+ Left rear speaker (+) signal  
CH2- Left rear speaker (-) signal  
Cable det Cable det.  
Cam_close(+) Close (+) rear camera cover motor (M35/2)  
Cam_open(+) Open (+) rear camera cover motor (M35/2)  
Cam_switch Rear camera cover motor switch signal line (M35/2s1)  
CAN A H Telematics CAN HIGH  
CAN A L Telematics CAN low  
CAN B H Interior CAN (CAN B) High  
CAN B High Interior CAN (CAN B) High  
CAN B L Interior CAN (CAN B) Low  
CAN B Low Interior CAN (CAN B) Low  
CAN C H CAN high drive train CAN (CAN C)  
CAN C L CAN low drive train CAN (CAN C)  
CAN D H Diagnostic CAN High  
CAN D L Diagnostic CAN Low  
CAN E L Chassis CAN Low  
CAN E1 H Chassis CAN 1 (CAN E1) High  
CAN E1 L Chassis CAN 1 (CAN E1) Low  
CAN E2 Chassis CAN 2  
CAN E2 H Chassis CAN 2 High  
CAN E2 L Chassis CAN 2 Low  
CAN H H CAN High vehicle dynamics CAN (CAN H)  
CAN H L CAN Low vehicle dynamics CAN (CAN H)  
CAN I H CAN high drive train sensor CAN (CAN I)  
CAN I L CAN low drive train sensor CAN (CAN I)  
CAN S H Sensor-CAN High  
CAN S L Sensor-CAN Low  
CAN-L H Hybrid CAN High  
CAN-L L Hybrid CAN Low  
Craddle_comp. Cradle/Compensator on/off  
Crash Digital crash output  
Crash OUT 1 Analog crash signal 1  
Crash OUT 2 Analog crash signal 2  
C_CVBS_AV2 Video signal 2  
D- Data output  
D+ Data input  
DAM_HL1 (HS) Solenoid valve 1, rear left (plus)  
DAM_HL2 (HS) Solenoid valve 2, rear right (positive)  
DAM_HR1 (LS) Solenoid valve 1, rear right (minus)  
DAM_HR2 (LS) Solenoid valve 2, rear right (negative)  
DAM_VL1 (HS) Solenoid valve 1, front left (plus)  
DAM_VL2 (LS) Solenoid valve 2, front left (minus)  
DAM_VR1 (HS) Solenoid valve 1, front right (plus)  
DAM_VR2 (LS) Solenoid valve 2, front right (minus)  
Data Driver door infrared remote control receiver data (A26/1)  
Data + USB D+  
Data - USB D -  
Data 0+ LVDS RX +  
Data 0- Ground connection  
Data 1+ LVDS RX -  
Data 1- Ground connection  
DCM Ground connection for throttle valve actuator motor (M16/6m1)  
DCP Supply voltage for actuator motor (M16/6m1), throttle valve  
Defrost+ Auxiliary heater heating element (R50) +  
Defrost- Auxiliary heater heating element (R50) -  
DF Electronic ignition lock control unit (N73)  
DF HL M Left rear rpm sensor ground connection  
DF HL S Left rear rpm sensor signal  
DF HR M Right rear rpm sensor ground connection  
DF HR S Right rear rpm sensor signal  
DF VL M Left front rpm sensor ground connection  
DF VL S Left front rpm sensor signal  
DF VR M Right front rpm sensor ground connection  
DF VR S Right front rpm sensor signal  
Diag. Ex_Fan_Diag  
DIR Signal, position/running direction of incremental sensor for actuator motor on transfer case (M46/2)  
DOPUMP Stationary heater fuel pump (Y23)  
Dr+ Driver sidebag squib (R12/9) -  
Dr- Driver sidebag squib (R12/9) +  
DRV Pressure regulating valve actuation (Y74)  
DS Sensor signal for pressure sensor downstream of air filter (B28/5)  
DS1 Sensor signal for pressure sensor downstream of air filter on cylinder bank, right (B28/5)  
DS2 Sensor signal for pressure sensor upstream of throttle valve (B28/6)  
DV1 Damping module_RF_actuation (Compression)  
DV2 Damping module_LF_actuation (Compression)  
DVV Damping module_RF_supply  
DZVL_A RPM signal (DZVL_A)  
EA LDS Sensor signal for boost pressure sensor (B5/1)  
EDW Left rear window glass breakage sensor (B39)  
EDW_Sig. Signal for left engine hood contact switch (S62/43), with code (551) Anti-theft alarm system (ATA [EDW]) or with code (B03) ECO start/stop function  
EF HFM1 Sensor signal for hot film mass air flow sensor (B2/5)  
EFB Stationary heater radio remote control receiver (A6/1)  
EFP Actuation, ground signal for "fuel pump ON" for fuel system control unit (N118)  
EKP Ground signal for "fuel pump ON" from ME-SFI [ME] control unit (N3/10)  
EKPR Ground signal for "fuel pump ON" for fuel system control unit (N118)  
EkP_EC_U AC voltage signal (phase U) fuel pump (M3)  
EkP_EC_V AC voltage signal (phase V) fuel pump (M3)  
EkP_EC_W AC voltage signal (phase W) fuel pump (M3)  
EkP_Shield Fuel pump shielding  
EKS 1 Contact strip signal, left EASY-PACK liftgate automatic reversing function (B86/1)  
EKS 2 Contact strip signal, right EASY-PACK liftgate automatic reversing function (B86/2)  
EXTS1 Ground connection  
EXTS3 Signal ground for temperature sensor upstream of SCR catalytic converter (B16/15) (with code (U42) BlueTEC (SCR) diesel exhaust treatment)  
EXTS4 Supply voltage for temperature sensor upstream of SCR catalytic converter (B16/15) (with code (U42) BlueTEC (SCR) diesel exhaust treatment)  
E_A_GNAG2 Purging pressure-sensor sensor signal (B4/4)  
E_A_GNA2 Purging pressure-sensor sensor signal (B4/4)  
E_A_DST Sensor signal for pressure sensor of fuel tank (B4/3) (with code (494) USA version)  
E_A_LSU1IA Trimming resistor for right oxygen sensor upstream of catalytic converter (G3/4)  
E_A_LSU1IP Pump current for right oxygen sensor upstream of catalytic converter (G3/4)  
E_A_LSU1UN Sensor signal for right oxygen sensor upstream of catalytic converter (G3/4)  
E_A_LSU2IA Trimming resistor for left oxygen sensor upstream of catalytic converter (G3/3)  
E_A_LSU2IP Pump current for left oxygen sensor upstream of catalytic converter (G3/3)  
E_A_LSU2UN Sensor signal for left oxygen sensor upstream of catalytic converter (G3/3)  
E_A_TANS Sensor signal for charge air temperature sensor (B17/8)  
E_F_AGRP1 Sensor signal for right Hall sensor for EGR (Y87/1b1)  
E_F_AGRP2 Sensor signal for left Hall sensor for EGR (Y87/2b1)  
E_HFM1 Sensor signal for left hot film mass air flow sensor (B2/6)  
E_HFM2 Sensor signal for right hot film mass air flow sensor (B2/7)  
E_P3 Exhaust pressure sensor (B60) sensor signal  
E_T1_1 Sensor signal for left intake air temperature sensor (B2/6b1)  
E_T1_2 Sensor signal for right intake air temperature sensor (B2/7b1)  
EF_HFM1 Sensor signal for hot film MAF sensor (B2/5)  
E_T1_EC1 Sensor signal 2 for left intake air temperature sensor (B2/6b1)  
E_T1_EC2 Sensor signal 2 for right intake air temperature sensor (B2/7b1)  
ETN_Tx+ Ethernet Transmission (plus)  
ETN_Tx- Ethernet Transmission (minus)  
ETN_Rx+ Ethernet Receiving (plus)  
ETN_Rx- Ethernet Receiving (minus)  
EZ_Sig Signal input, real-time signal path and speed sensor for digital tachograph (B158)  
FFRBEL Rear right footwell lamp actuation (E17/18)  
Fa Drive power supply, fold-in/out outside mirror electric motor (M21/2m3)  
FL+(0_1_+) Left front door speaker (+) signal  
FL-(0_1_-) Left front door speaker (-) signal  
RL+(0_2_+) Left rear door speaker (+) signal  
RL-(0_2_-) Left rear door speaker (-) signal  
FR+(0_3_+) Right front door speaker (-) signal  
FDS_L_(-) Circuit 31, driver's seat lumbar support adjustment control unit (N32/23)  
FR-(0_3_-) Circuit 31, driver's seat lumbar support adjustment control unit (N32/23)  
FR2_BM_SMPC Chassis FlexRay (Flex E) A1 - Low  
FR2_BP_SMPC Chassis FlexRay (Flex E) A1 - High  
FR BM1 FlexRay bus (Low)  
FR BP1 FlexRay bus (High)  
FR BM2 FlexRay bus (Low)  
FR BP2 FlexRay bus (High)  
FDS_L_30g Circuit 30g, driver's seat lumbar support adjustment control unit (N32/23)  
FH H Left front door power window motor actuation high (M10/3)  
FH T Left front door power window motor actuation low (M10/3)  
FHS_deep Open window signal, front passenger side power window switch (S21/2)  
FHS_up Close window signal, passenger-side power window switch (S21/2)  
FL Cargo area center dome lamp (E15/4), rear compartment lamp (E15/3e3) valid for model 166.8 with CODE (876) Interior lights package  
FM1/AM FM1/AM  
FM2 FM2  
FM2/DAB/TV1 FM2/DAB/TV1 antenna  
FQS Sig. Fuel grade sensor signal  
FRL HL Left rear footwell lamp (E17/17) with code (876) Interior lights package  
FRL HR Right rear footwell lamp (E17/18) with Code (876) Interior lights package  
FRL V Right front footwell lamp (E17/15) and left front footwell lamp (E17/16)  
Front lens- Illumination (-) front door speaker, front mirror triangle  
Front lens+ Illumination (+) front door speaker, front mirror triangle  
Front lens Ctrl Illumination indicator, front door speaker, front mirror triangle  
FSOEL Oil level check switch (S43) signal  
FT_R_E_A Windshield wiper on/off relay actuation (F58kL)  
FT_R_ST Wiper speed 1/2 relay actuation (F58kK)  
FV_ZSP (-) Filling valve for AIRmatic central reservoir (minus)  
Ga Garage voltage supply, fold in/out outside mirror electric motor (M21/2m3)  
GBR_BG Booster blower electronic blower regulator (N29/8)  
GDN Circuit 31  
GDS_Sig Exhaust pressure sensor (B60) sensor signal  
GND Ground connection  
GND to ICE GND to ICE (ground connection) (at pin 14 rear woofer amplifier)  
GPS GPS  
G_R_PRAS AdBlue® pressure sensor ground connection  
H (+) Supply for left front door power window motor Hall sensor (M10/3)  
H (-) Circuit 31 for left front door power window motor Hall sensor (M10/3)  
HAV Heater shutoff valve  
HEL_Sig Supply voltage for vent line heater element (R39/1)  
HF_Sig1 Sensor signal for hot film mass air flow sensor (B2/5)  
HF_Sig2 Sensor signal for intake air temperature sensor (B2/5b1)  
HL Left rear  
HR Right rear  
HS (+) Trailer hitch release Hall sensor supply (A63)  
HS (-) Left rear door power window motor Hall sensor circuit 31 (M10/5)  
HS 1 Left front door power window motor Hall sensor 1 (M10/3)  
HS 2 Hall sensor 2, panoramic sliding sunroof roller sun blind (M12/5b2)  
HS(+) Hall sensor for steering column forward and back (M20/1b1)  
HS(-) Ground connection for steering column forward/back Hall sensor (M20/1b1) or steering column up/down Hall sensor (M20/2b1)  
HSHZG_High_Side Heated rear window relay (F4kH)  
HS_SIG Trailer hitch release Hall sensor signal (A63)  
HV_HS (+) Driver seat height adjustment Hall sensor (M27/2b1)  
HV_HS_Sig. Hall sensor for seat fore/aft adjustment, driver seat (M27/1b1)  
HV_Mot (+) Driver seat height adjustment seat adjustment motor (M27/2)  
HV_Mot (-) Driver seat height adjustment seat adjustment motor (M27/2)  
HV_NV_HS (-) Ground connection for inclination adjustment Hall sensor, driver's seat (M27/3b1) or seat height adjustment Hall sensor, driver's seat (M27/2b1) or inclination adjustment Hall sensor, driver's seat (M27/3b1)  
HV_NV_HS(-) Ground connection for inclination adjustment Hall sensor, driver's seat (M27/3b1) or seat height adjustment Hall sensor, driver's seat (M27/2b1) or inclination adjustment Hall sensor, driver's seat (M27/3b1)  
IA PFDP1 Sensor signal for DPF differential pressure sensor (B28/8)  
ICEWRON ICE POWERON (at pin 11 rear woofer amplifier)  
ICE_RXD ICE_RXD (at pin 12 rear woofer amplifier) Communication via RS232 interface with rear woofer amplifier (N40/9)
Interlock in Interlock IN  
Interlock out Interlock OUT  
ICE_TXD ICE_TXD (at pin 13 rear woofer amplifier) Communication via RS232 interface with rear woofer amplifier
IGSV_Sig Signal, position/running direction of incremental sensor for actuator motor on transfer case  
IL2_L Left dome lamp, 2nd seat row (E15/12) (interior lights)  
IL2_R Right dome lamp, 2nd seat row (E15/13) (interior lights)  
IMP Ground connection for throttle valve actual value potentiometer 1 (M16/6r1), throttle valve actual value potentiometer 2 (M16/6r2)  
In Input  
Inj H Actuation (plus) fuel injector  
Inj L Actuation (minus) fuel injector  
IP1S Sensor signal for actual value potentiometer 1 (M16/6r1), throttle valve  
IP2S Sensor signal for actual value potentiometer 2 (M16/6r2), throttle valve  
IPM Ground connection for throttle valve actuator motor (M16/6m1)  
IP_1 Supply 1 ambiance illumination  
IP_2 Supply 2 ambiance illumination  
I_A_PRAS AdBlue® pressure sensor (A103/2b1) sensor signal  
I_A_TRATS Signal sensor for AdBlue® container temperature sensor (A103/1b1)  
KB+ Driver kneebag squib (R12/25) +  
KB- Driver kneebag squib (R12/25) -  
KDS_Sig. Fuel pressure sensor signal (B47)  
KFHZ 1 Fuel filter heater 1  
KFHZ 2 Fuel filter heater 2  
KFR_BEL Cargo area lamp, model 166.8  
KJA Radiator shutters actuator actuation (ground connection) (Y84)  
kLA Radiator shutters actuator actuation (ground connection) (Y84)  
KMV_SK(+) Supply, magnetic clutch for A/C compressor (A9y1)  
KMV_SK(-) Circuit 31, magnetic clutch for A/C compressor (A9y1)  
KOMP_PWM Actuation of A/C compressor control valve (A9)/actuation of front evaporator shutoff valve (Y19/3) (only with 166.005)  
KOMP_RV(-) Circuit 31, actuation of A/C compressor control valve (A9)/circuit 31, actuation of front evaporator shutoff valve (Y19/3) (only with 166.005)  
KRBEL_L Left luggage compartment lamp (E18/4)  
KRBEL_R Right luggage compartment lamp (E18/4)  
KS1A Sensor signal for right A knock sensor (A16/1)  
KS1B Sensor signal for right B knock sensor (A16/1)  
KS2A Sensor signal for left A knock sensor (A16/2)  
KS2B Sensor signal for left B knock sensor (A16/2)  
KS_HS_Sig. Hall sensor head restraint adjustment signal, driver seat (M27/4b1)  
KS_M Sensor signal B  
KS_S Sensor signal A  
KTS_Sig. Sensor signal for fuel temperature sensor (B50)  
KWGA Sensor signal for crankshaft Hall sensor (B70)  
KWS(-) Ground connection for coolant level switch (S41)  
KWS_Sig. Coolant level switch (S41) signal  
KZL L Left liftgate license plate lamp (E19/3)  
KZL R Right liftgate license plate lamp (E19/4)  
K_Mot Driver seat head restraint adjustment motor (M27/4)  
L, OK Multifunction steering wheel button OK.  
LDS 1 Signal for channel 1 (left parking light, right parking light, standing light) exterior lights switch (S1)  
LDS 2 Signal for channel 2 (auto on/off driving lights, manual driving lights) exterior lights switch (S1)  
LDS 3 Signal for channel 3, exterior lights (S1)  
LDS_Sig. Sensor signal for boost pressure sensor (B5/1)  
LED Function indicator for tow-away protection button (S93/3s1), function indicator for interior protection button (S93/3s3)  
LED (+) LED supply in trailer hitch lock switch (S62/24)  
LED 31 Circuit 31, readiness and warning display for right blind spot assist (M21/2e2)  
LED RD(-) Function illumination for trailer hitch lock switch (S62/24)  
LED WH(-) Circuit 58d trailer hitch lock switch (S62/24)  
Level 1 Wiper speed 1 relay actuation  
Level 2 Wiper speed 2 relay actuation  
LH+ Left front door pressure sensor (B48/7) +  
LH- Left front door pressure sensor (B48/7) -  
LIN LIN bus  
LIN B12 Center console switch LIN (LIN B12)  
LIN B13 Roof LIN (LIN B13) SAM control unit (N10)  
LIN B14 Alarm system LIN  
LIN B15 Battery sensor-LIN (LIN B15) to battery sensor (B95)  
LIN B5 Left front door LIN (LIN B5), left front seat adjustment switch group (S22)  
LIN B6 Right front door LIN (LIN B6), right front seat adjustment switch group (S23)  
LIN B8_(+) Climate control LIN (LIN B8) supply  
LIN B8_Data Climate control LIN (LIN B8) data  
LIN B8-2 Climate control-LIN 2 data  
LIN B8_GND Climate control LIN (LIN B8) ground connection  
LIN B8_RF Climate control LIN (LIN B8) return  
LIN C1 Alternator interface, alternator (G2) via drive train LIN (LIN C1)  
LIN C3 LIN-interface, drive-LIN (LIN C3)  
LIN E1 Steering LIN (LIN E1)  
LIN E2 Seat occupied recognition LIN  
LIN G1 Left headlamp LIN (LIN G1)  
LIN G2 Right headlamp LIN (LIN G2)  
LL_BNST Left rear door ambiance illumination actuation (E17/45)  
LL L Left reading lamp (A67e1) inside rear-view mirror (A67)  
LL R Right reading lamp (A67e2) inside rear-view mirror (A67)  
LL2_L Left dome lamp, 2nd seat row (E15/12) (reading lights)  
LL2_R Right dome lamp, 2nd seat row (E15/13) (reading lights)  
LLkR Actuation, turbocharger relay (F58kO)  
LLTF Sig. Sensor signal for charge air temperature sensor (B17/8)  
LL_BEMST Left front door ambiance illumination (E17/43), with code (876) Interior lights package  
LL_ICEBLUE Left front door ambiance illumination (E17/43), with code (876) Interior lights package  
LO_SUBW+ Rear woofer (H4/38) + (at pin 8 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_SUBW- Rear woofer (H4/38) - (at pin 20 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoFL+ Left front door woofer (H4/88) + (at pin 23 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoFL- Left front door woofer (H4/88) - (at pin 24 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoFR+ Right front door woofer (H4/89) + (at pin 9 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoRL+ Left rear door speaker (H4/3) - (at pin 27 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoRL- Right front door woofer (H4/89) - (at pin 10 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoRR+ Right rear door speaker (H4/4) + (at pin 25 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LO_WoRR- Right rear door speaker (H4/4) - (at pin 30 rear woofer amplifier) The speaker is actuated by the rear woofer amplifier.
LPV Actuation of purge switchover valve (Y58/1)  
LRH+ Steering wheel heater heating element (R22/4r1) +  
LRH- Steering wheel heater heating element (R22/4r1) -  
LS2HK Sensor signal for left oxygen sensor downstream of catalytic converter (G3/5)  
LSCP1 Pump current for oxygen sensor upstream of catalytic converter (G3/2)  
LSH1 Supply voltage for oxygen sensor heater upstream of catalytic converter (G3/2)  
LSH1HK Actuation of oxygen sensor heater for oxygen sensor at right downstream of catalytic converter (G3/6)  
LSH2HK Actuation of oxygen sensor heater for oxygen sensor at left downstream of catalytic converter (G3/5)  
LSHK Sensor signal for right oxygen sensor downstream of catalytic converter (G3/6)  
LSHVK1 Actuation of oxygen sensor heater for oxygen sensor at right upstream of catalytic converter (G3/4)  
LSHVK2 Actuation of oxygen sensor heater for oxygen sensor at left upstream of catalytic converter (G3/3)  
LSP+ Steering wheel upshift button.  
LSP- Steering wheel downshift button.  
LSU1UP Pump current for right oxygen sensor upstream of catalytic converter (G3/4)  
LSU1A Trimming resistor for right oxygen sensor upstream of catalytic converter (G3/4)  
LSU1P Pump current for right oxygen sensor upstream of catalytic converter (G3/4)  
LSU1UN Sensor signal for right oxygen sensor upstream of catalytic converter (G3/4)  
LSU1VM Virtual ground connection for oxygen sensor at right upstream of catalytic converter (G3/4)  
LSU2IA Trimming resistor for left oxygen sensor upstream of catalytic converter (G3/3)  
LSU2IP Pump current for left oxygen sensor upstream of catalytic converter (G3/3)  
LSU2UN Sensor signal for left oxygen sensor upstream of catalytic converter (G3/3)  
LSU2VM Virtual ground connection for oxygen sensor at left upstream of catalytic converter (G3/3)  
LSVG1 Virtual ground connection for oxygen sensor upstream of catalytic converter (G3/2)  
LSVN1 Nernst voltage for oxygen sensor upstream of catalytic converter (G3/2)  
LUES Pulse width modulated signal, specified fan speed for fan motor, combustion engine and air conditioning system with integrated control (M4/7)  
LM (+) Extinguishing agent (+)  
LM (-) Extinguishing agent (-)  
Lum Picture signal to COMAND controller unit (A40/3)  
LVDS N Low Voltage Differential Signal (LVDS)_N  
LVDS P Low Voltage Differential Signal (LVDS)_P  
LVDS_R+ LVDS_R+  
LVDS_R- LVDS_R-  
LVDS_T+ LVDS_TX +  
LVDS_T- LVDS_TX -  
LV_HS_Sig. Seat fore/aft adjustment Hall sensor, front passenger seat (M28/1b1)  
LV_HS (+) Hall sensor for seat fore/aft adjustment, driver seat (M27/1b1)  
LV_Mot (+) Driver seat fore/aft adjustment motor (M27/1)  
LV_Mot (-) Driver seat fore/aft adjustment motor (M27/1)  
LWR Left headlamp range adjustment actuator motor through line (E1m1)  
L_HS (+) Hall sensor backrest inclination signal, driver seat (M27/5b1)  
L_HS_Sig. Hall sensor signal for backrest inclination, front passenger seat (M28/5b1)  
L_HS (-) Hall sensor for backrest inclination, driver seat (M27/5b1)  
L_Mot (+) Driver seat backrest inclination adjustment motor (M27/5)  
L_Mot (-) Driver seat backrest inclination adjustment motor (M27/5)  
USB2 D- USB 2 D - (multimedia connection unit (A90/5))  
USB D- USB data (-)  
USB1 D- USB1 data (-)  
USB D+ USB data (-)  
USB2 D+ USB2 data (-)  
USB1 D+ USB1 data (-)  
USB GND USB ground connection  
M (+) Supply voltage  
M (-) Ground connection  
M+ Supply voltage for transfer case actuator motor  
M- Transfer case actuator motor ground connection  
MHS re Right engine hood switch signal  
MHS_re Signal for right engine hood contact switch (S62/42), with code (B03) ECO start/stop function  
Mic. (+) Microphone 1+  
Mic. (-) Microphone 1 ground  
Mic. 1+ Microphone-1-In + (local driver microphone)  
Mic. 2+ Microphone-2-In + (remote driver microphone)  
Micro_GND Micro_Ground  
Micro_Navi_GND Micro_Navi_Ground  
Micro_Navi_Out Micro_Navi_Out  
Micro_Navi_Shield Micro_Navi_Shield  
Micro_Shield Micro_Shield  
Micro_Sig Micro_In  
MKS Steering column in/out adjustment motor (M20/1)  
MKS_ABH MKS ABH signal, left front door lock (A85)  
MKS_ATR_Sig MKS ATR signal, left rear door lock (A85/3)  
MKS_IBH MKS IBH signal, left front door lock (A85)  
MKS_VR_Sig. MKS-VR signal, left front door lock (A85)  
MLS Steering column up/down adjustment motor (M20/2)  
MLS, H Steering column in/out adjustment motor (M20/1)  
MLS, V Steering column up/down adjustment motor (M20/2)  
MOST IN MOST Input RX  
MOST OUT MOST output TX  
MOT (+) Trailer hitch release supply (A63)  
MOT (-) Trailer hitch release ground connection (A63)  
Motor_L+ Electric parking brake actuator motor supply  
Motor_L- Electric parking brake actuator motor ground connection  
Mot_close Close liftgate control drive unit.  
Mot_open Open liftgate control drive unit.  
MRLY Relay actuation, circuit 87M (F58kN)  
MRLY_H High Side switch main relay  
Mute Radio Mute  
Mute, SBS Multifunction steering wheel mute function button  
Navi_Voice_GND Navi_Voice_Ground  
Navi_Voice_In Navi_Voice_In  
Navi_Voice_Out Navi_Voice_Out  
Navi_Voice_Shield Navi_Voice_Shield  
not connected Not assigned  
NC Not assigned  
Not_P Emergency motor supply voltage  
NSL Rear fog lamp  
NTC+ NTC resistor signal  
NTC- Ground connection for NTC resistor  
NV Night View Assist Y-signal (code 610)  
Niv_VL (+) Left front level control valve, high side  
Niv_HL (-) Left rear level control valve, low side  
Niv_VR (+) Right front level control valve, high side  
Niv_HR (-) Right rear level control valve, low side  
NV_HS (+) Hall sensor for inclination adjustment, driver seat (M27/3b1)  
NV_Mot (+) Driver seat inclination adjustment motor (M27/3)  
NV_Mot (-) Driver seat inclination adjustment motor (M27/3)  
NW2A2 Actuation (minus) for left exhaust camshaft solenoid (Y49/6)  
NWEA2 Sensor signal for left exhaust camshaft Hall sensor (B6/6)  
NWAE2 Sensor signal for left exhaust camshaft Hall sensor (B6/6)  
NWG-Sig. Sensor signal for camshaft Hall sensor (B6/1)  
NWG1 Sensor signal for right intake camshaft Hall sensor (B6/5)  
NWGA1 Sensor signal for right exhaust camshaft Hall sensor (B6/7)  
NWGE2 Sensor signal for left intake camshaft Hall sensor (B64/)  
NWG_Sig. Sensor signal for camshaft Hall sensor (B6/1)  
NWSA1 Actuation (ground connection) for right exhaust camshaft solenoid (Y49/7)  
NWSA2 Actuation (ground connection) for left exhaust camshaft solenoid (Y49/6)  
NWSE1 Actuation (ground connection) for right intake camshaft solenoid (Y49/5)  
NWSE2 Actuation (ground connection) for left intake camshaft solenoid (Y49/4)  
OELS_SIG Sensor voltage (5 V) for engine oil temperature sensor (B1)  
Oeltemp Sensor signal for engine oil temperature sensor (B1)  
ON/OFF Windshield wiper relay ON/OFF actuation  
OSS Sensor signal for oil level check switch (S43)  
Out Output  
O_HB1_CL Actuation (minus) expansion valve for high-voltage battery cooling (Y140)  
O_HB1_OP Actuation (plus) expansion valve for high-voltage battery cooling (Y140)  
O_H_BATT ECO-start-stop signal  
O_S_RAHT1 Actuation of AdBlue® heating element container (A103/1r1)  
O_S_RAHT2 Actuation of AdBlue® pressure line heating element (A103/1r2)  
O_S_RAHT3 Actuation of AdBlue® heating element supply module (A103/2r1)  
O_S_RARV Actuation of AdBlue® switchover valve (A103/2y1)  
O_S_VSSAM "Hot-start request" for SAM control unit (N10)  
O_T_ETC Actuation of coolant thermostat heating element (R48)  
O_T_OTC Pulse width modulated signal (pulse width modulated signal) for coolant thermostat heating element (R48)  
O_T_RAMVH1 Actuation of AdBlue® metering valve (Y129) (high-side)  
O_T_RAMVL1 Actuation of AdBlue® metering valve (Y129) (low-side)  
O_T_RAPMP Actuation of AdBlue® delivery pump (A103/2m1)  
O_V_RH1 AdBlue® delivery pump switchover valve (A103/2m1) AdBlue® switchover valve (A103/2y1)  
PAS_5V Pedal angle sensor power supply (B37/1)  
PAS_SIG1 Signal 1, pedal angle sensor (B37/1)  
PAS_SIG2 Signal 2, pedal angle sensor (B37/1)  
PAS_M Ground connection for pedal angle sensor (B37/1)  
P Not Emergency motor supply voltage  
Phase U Phase U electrical machine (A79/1)  
Phase V Phase V electrical machine (A79/1)  
Phase W Phase W electrical machine (A79/1)  
P-MOT Engine oil pump valve (Y130) actuation  
PB_30b Circuit 30b, buffer battery  
Poti Sig. Sensor signal for actual value potentiometer 1 (M16/6r1) throttle valve  
PPS ih+ Right rear active engine hood squib (R12/50) +  
PPS ih- Right rear active engine hood squib (R12/50) -  
PPS le+ Left rear active engine hood squib (R12/49) +  
PPS le- Left rear active engine hood squib (R12/49) -  
PPS LH+ Left front bumper pedestrian protection sensor (B151/1) +  
PPS LH- Left front bumper pedestrian protection sensor (B151/1) -  
PPS RH+ Right front bumper pedestrian protection sensor (B151/3) +  
PPS RH- Right front bumper pedestrian protection sensor (B151/3)  
PPS+ Center front bumper pedestrian protection sensor (B151/2) +  
PPS- Center front bumper pedestrian protection sensor (B151/2) -  
PS+ Front passenger sidebag squib (R12/10) +  
PS- Front passenger sidebag squib (R12/10) -  
PSC (+) Supply, front-passenger side outside mirror reversing camera  
PSC (-) Front passenger outside mirror reversing camera ground connection  
PSC Video In Video signal, front-passenger side outside mirror reversing camera  
PSC Video In(-) Video signal, minus, front-passenger side outside mirror reversing camera  
PWM Pulse width modulation  
PWR GND PWR GND  
R, Return Multifunction steering wheel "Back" button  
RDY_IN Engine sound control unit signal input  
RDS Sensor signal for fuel pressure sensor (B4/6) (high-pressure fuel circuit)  
RDS_Sig. Sensor signal for fuel pressure sensor (B4/6) (high-pressure fuel circuit)  
RDY_O Engine sound control unit signal output  
REF1 Sensor signal for pressure sensor downstream of throttle valve (B28/7)  
Rel. Sig. Compressor_relay_actuation  
REL_EX Actuation of diode for ECO start/stop function (V19)  
Rel. Vers. Compressor_relay_supply  
REL_BUB ECO start/stop function additional battery relay, actuation  
REL_EK ECO start/stop function diode, actuation  
REL_FF Horn relay actuation (F58kJ)  
REL_HW Rear window wiper relay actuation (F4kD)  
REL_WR Supply for power outlet 115 V (X58/34), with code (U80) 115V power outlet and code (460) Canada version or code (494) USA version  
Res Spare  
RES_S1_1 Sensor signal 1, position sensor for rotor on electrical machine (L20)  
RES_S2_1 Sensor signal 2, position sensor for rotor on electrical machine (L20)  
RES_S3_1 Sensor signal 3, position sensor for rotor on electrical machine (L20)  
RES_S4_1 Sensor signal 4, position sensor for rotor on electrical machine (L20)  
Reserved Spare  
RFL Backup lamp  
RR+(0_4_+) Right rear door speaker (+) signal  
RR-(0_4_-) Right rear door speaker (-) signal  
RH+ Right front door pressure sensor (B48/8) +  
RH- Right front door pressure sensor (B48/8) -  
RVC Video In Reversing camera video input  
RVC Video In(-) Video minus reversing camera  
S10H Outer left rear parking system distance sensor (B8/10) data  
S1V Outer left front parking system distance sensor (B8/1) data  
S2V Center left front parking system distance sensor (B8/2) data  
S3V Inner left front parking system distance sensor (B8/3) data  
S4V Inner right front parking system distance sensor (B8/4) data  
S5V Center right front parking system distance sensor (B8/5) data  
S6V Outer right front parking system distance sensor (B8/6) data  
S7H Outer right rear parking system distance sensor (B8/7) data  
S8H Inner right rear parking system distance sensor (B8/8) data  
S11H Data input, left rear center parking system distance sensor (B8/11)  
S19H Data input, rear right inner parking system distance sensor (B8/8)  
S9H Inner left rear parking system distance sensor (B8/9) data  
SBE+ Front passenger seat occupied recognition (B41/1) +  
SBE- Front passenger seat occupied recognition (B41/1) -  
SCRM(-) Actuation, circuit 85 relay supply for AdBlue® (K27/7)  
SCRM1 Supply voltage for AdBlue® control unit (N118/5) over AdBlue® supply relay (K27/7)  
SCRM2 Supply voltage 2 AdBlue® control unit  
SCRM3 Supply voltage for AdBlue® pressure line heating element (A103/1r2) over AdBlue® supply relay (K27/7)  
SDAR Multifunction antenna signal input  
SDV_Sig Sensor signal for low-pressure turbocharger boost pressure sensor (B5/4)  
Sec Audio_In Sec. left/right/audio return  
SES_MOT_C Close actuation, actuator motor for left front door power closing (M14/21)  
SES_MOT_RS Open actuation, actuator motor for left front door power closing (M14/21)  
SEWF 3 Ground connection for temperature sensor upstream of the NOx storage catalytic converter  
SH Sensor CAN (CAN S)  
SH(+) 61 Circuit 61, mirror heater (M211/r1)  
SH(-) 31 Circuit 31, mirror heater (M21/1r1)  
Shield Screening  
Shield Luna Image signal shielding of COMAND controller unit (A40/3)  
Shield TV1 Screening  
Shield TV2 Screening  
Shield TV3 Screening  
SH_High Sensor CAN (CAN S) High  
SH_Low Sensor CAN (CAN S) Low  
Sig Signal  
SIG-VO Signal input from front right level sensor (B22/9)  
Sig. li. Signal, left sun sensor (B32/3)  
Sig. PMOT Engine oil pump valve (Y130) actuation  
Sig. re. Signal, right sun sensor (B32/3)  
Sig.-NTEMP Low temperature signal  
Sig.-Press Sensor signal for fuel pressure and temperature sensor, fuel (B4/25)  
Sig.-RES Actuation (ground connection) of intake manifold resonance flap switchover valve (Y77/2)  
Sig.-SW Actuation (ground connection) of intake manifold selector drum switchover valve (Y77/3)  
Sig.-Temp Sensor signal, fuel temperature pressure and temperature sensor, fuel (B4/25)  
Sig.1 Signal 2  
Sig.2 Signal 1  
Sig._ARFS Sensor signal for exhaust gas recirculation actuator (Y27/9)  
Sig._DF Circuit 31, driver door infrared remote control receiver data (A26/1)  
Sig._EKA Sensor signal for intake port shutoff actuator motor (M55)  
Sig._PMOT Actuation (ground connection) of engine oil pump valve (Y130)  
Sig._SML Actuation of left switchable engine mount (Y123), right switchable engine mount (Y123/1)  
Sig_1HS Signal 1, Hall sensor, liftgate control (M51/3b1)  
Sig_2HS Signal 2 Hall sensor liftgate control (M51/3b1)  
Sig_ASLTS Sensor signal for intake manifold intake air temperature sensor (B17/1)  
Sig_close Close signal, driver trunk lid/liftgate control button (S15/3)  
Sig_DPF Sensor signal for DPF differential pressure sensor for OBD (B28/16)  
Sig_HA1 Active roll stabilization rear axle pressure sensor 1, signal  
Sig_HA2 Active roll stabilization rear axle pressure sensor 2, signal  
Sig_HADRV Active roll stabilization rear axle pressure regulating valve, actuation  
Sig_HAWV Active roll stabilization rear axle directional control valve, actuation  
Sig_KAS_L Sensor signal for right intake port shutoff Hall sensor (B96/2)  
Sig_kP Actuation of the coolant pump switchover valve (Y133)  
Sig_open Open signal, driver trunk lid/liftgate control button (S15/3)  
Sig_POSHS Signal position sensor, liftgate control (M51/3b2)  
Sig_QBS Active roll stabilization lateral acceleration sensor, signal  
Sig_SD Active Roll Stabilization intake throttle valve (Y86/2), actuation  
Sig_SV Transfer case absolute sensor signal  
Sig_SV Active Roll Stabilization safety valve (Y86/3), actuation  
Sig_VA1 Active Roll Stabilization front axle pressure sensor 1 (B4/28), signal  
Sig_VA2 Active roll stabilization front axle pressure sensor 2, signal  
Sig_VADRV Active Roll Stabilization front axle pressure regulating valve, (Y36/12), actuation  
Sig_VAWV Active roll stabilization front axle directional control valve, actuation  
Sig_Video Video out CV+  
Sig_WS Signal, liftgate control warning buzzer (H4/60)  
SML_HD_R Inner right side marker lamp (E4/1e7)  
SML_SW_L Left side-marker lamp (E3e6)  
SP(-) Locking finger/sensor (-)  
SP1 Locking finger 1  
SP2 Locking finger 2  
SP1M Signal ground 1 accelerator pedal sensor (B37)  
SP1S Sensor signal 1 for accelerator pedal sensor (B37)  
SP2M Signal ground 2 accelerator pedal sensor (B37)  
SP2S Sensor signal 2 accelerator pedal sensor (B37)  
SRA_P Headlamp cleaning system pump (M5/2)  
STK_H Night View Assist high camera control channel (B84/2)  
STK_L Night View Assist low camera control channel (B84/2)  
STR Starter circuit 50 relay (F58kM), Low side  
STR+ Starter circuit 50 relay (F58kM), High side  
SV_M1 Vertical inclination adjustment actuator motor (M21/1m1)  
SV_M1M2 Vertical inclination adjustment actuator motor (M21/1m1), horizontal inclination adjustment actuator motor (M21/1m2)  
SV_M2 Horizontal inclination adjustment actuator motor (M21/1m2)  
SW Signal 115 V consumer  
SW-1 Electric parking brake switch (S76/15) (Switch_1)  
SW-2 Electric parking brake switch (Switch_4)  
SW-3 Electric parking brake switch (Switch_3)  
SW-4 Electric parking brake switch (Switch_6)  
S_EK_2 Sensor excitation, 2 position sensor for rotor on electrical machine (L20)  
S_ER_1 Electrical machine rotor position sensor (L20)  
S_CHV Actuation of vent line heater element (R39/1)  
S_S_VREF3 Supply voltage for potentiometer 2 accelerator pedal sensor (B37)  
T-1 H Cycle_1 Night View Assist high camera (B84/2)  
T-1 L Cycle_1 Night View Assist low camera (B84/2)  
TAG 2 Sensor signal for temperature sensor upstream of NOx storage catalytic converter  
TBBEL_L Left running board courtesy light (E17/53)  
TBBEL_R Right running board courtesy light (E17/54)  
Td_St Status of refueling intention detection switch/trailer hitch switch  
Td_Sig. Signal of refueling intention detection switch/trailer hitch switch  
Term Termination  
TX- LVDS TX +  
TX+ LVDS TX-  
Tel. Answer/End Call Multifunction steering wheel accept/end phone call button  
Telmute Mute signal  
Temp Temperature sensor  
TEMP_V_Sig. Signal, rear air conditioning system evaporator temperature sensor (B10/11)  
Temp AGR Exhaust gas recirculation temperature sensor signal  
TEMP_KR_Sig. Signal input, rear A/C temperature sensors for head area (B10/37)  
Temp_Motor_L Actuator motor for left electric parking brake, temp-motor_L  
Temp_Motor_R Actuator motor for right electric parking brake, temp-motor_R  
Temp_SV Transfer case actuator motor temperature sensor  
TFVKAT Temperature sensor signal upstream of catalytic converter (B19/7)  
TFL L Left daytime running lights headlamp (E1/3)  
TFL R Right daytime running lights headlamp (E2/3)  
THS Actuation (ground connection) of coolant thermostat heating element (R48)  
TIB (+) Supply, left front door door handle illumination (E17/11)  
TIB (-) Ground connection for left front door handle illumination (E17/11)  
TK_FT Driver door contact switch  
TMC TMC  
TMOT Sensor signal for coolant temperature sensor (B11/4)  
TMOT1 Sensor signal for coolant temperature sensor (B11/4)  
TM_1_Sig Sensor signal for electrical machine temperature sensor (A79/1b1)  
TS(+) Signal for fuel level indicator fill level sensor, right (B4/2)  
TS(-) Ground connection for fuel level indicator fill level sensor, left (B4/1) and fuel level indicator fill level sensor, right (B4/2)  
TSLL_Sig. Sensor voltage (5 V) charge air temperature sensor (B17/8)  
TS_2 Signal for fuel level indicator fill level sensor, left (B4/1)  
TV1 TV 1/TV 2 antenna amplifier signal  
TV2 Signal of FM 2 and DAB antenna amplifier/TV and DAB antenna splitter  
TV3 Signal of TV 3 antenna amplifier  
TWFL+ Left front door speaker, mirror triangle (+)  
TWFL- Left front door speaker, mirror triangle (-)  
TWFR+ Right front door speaker, mirror triangle (+)  
TWFR- Right front door speaker, mirror triangle (-)  
Tx (+) Tx (+) camera, 360° camera  
Tx (-) Tx (-) camera, 360° camera  
TZS_L Release actuation, actuator motor for left front door additional door lock (A85m4)  
TZS_UL Lock actuation, actuator motor for left front door additional door lock (A85m4)  
IN RR+(IN4+) COMAND input (+) signal  
Inp1+ Left front speaker signal input (+)  
Inp1- Left front speaker signal input (-)  
Inp2+ Left rear speaker signal input (+)  
Inp2- Left rear speaker signal input (-)  
Inp3+ Right front speaker signal input (+)  
Inp3- Right front speaker signal input (-)  
Inp4+ Right rear speaker signal input (+)  
Inp4- Right rear speaker signal input (-)  
IN RR-(IN4-) COMAND input (-) signal  
U batt Battery voltage  
U PWG Sensor voltage 1 (5 V) accelerator pedal sensor (B37)  
U-MFL-L Multifunction steering wheel supply, left  
U-MFL-R Multifunction steering wheel supply, right  
UB (+) Circuit 30 (UBVR)  
UCI Shield Shield  
UCI Sig. UCI  
Up/Down Multifunction steering wheel scroll forward/back button  
USB Data+ D+  
USB Data- D-  
USB shield USB shield  
USB+ USB +5 V  
USB/digital USB/digital Gnd  
USV Stationary heater switchover valve (Y16)  
UZ Brake light switch supply voltage  
VAC_PUMP_MON Vacuum pump diagnosis (M56)  
VAC_PUMP_A Actuation of vacuum pump relay (+) (K109)  
VAC_PUMP_M Actuation of vacuum pump relay (-) (K109/1)  
VAC_SIG Brake vacuum sensor, signal 1 (B641)  
VCC Supply voltage for incremental sensor on transfer box actuator motor  
Vbus USB V-Bus  
VCC_+5VC USB V-Bus  
VDF Signal, evaporator temperature sensor (B10/6)  
Verd Actuation of A/C compressor  
Verd (-) Refrigerant compressor (-)  
VENT_V Rear end shutoff valve signal  
Video (-) Video signal minus  
Video C Video C  
Video GND Shield  
Video N Video signal N  
Video Out Video outlet  
Video P Video signal P  
Video Y Video_Y  
Video_GND Video signal minus  
Video_Out Video outlet  
Video_Out_C_Sig Video signal C  
Video_Out_C_Sig_shield Shield  
Video_Out_Y_Sig Video Y signal  
Video_Out_Y_Sig_shield Shield  
VL Left front  
VR Right front  
V_V_5VPRAS Sensor voltage (5 V) for AdBlue® pressure sensor (A103/2b1)  
WAHZG Wiper park position heater (R2/10)  
Wake up Cut-in signal  
WH (+) Front parking system warning indicator (A44/1)+  
WH (-) Front parking system warning indicator (A44/1), ground connection  
WH (Data) Front parking system warning indicator (A44/1), data  
WP Coolant circulation pump (M13/5)  
WP Sig. Signal, coolant pump switchover valve  
WP_H(+) Actuation of windshield washer system pump (M5/1), rear  
WP_V(+) Actuation of windshield washer system pump (M5/1), front  
WSA Through line to left headlamp range adjustment actuator motor  
WSS Condensation sensor  
WV (+) Rear parking system warning indicator (A44/3) +  
WV (-) Rear parking system warning indicator (A44/3), ground connection  
WV (Data) Rear parking system warning indicator (A44/3), data  
WWHZG Spray nozzle hose heater (R2/11)  
Y_CVBS_AV1 Video signal 1  
ZLV Valve unit_valve reservoir_actuation  
ZU 1 Actuation, cylinder 1 ignition coil (T1/1)  
ZU 2 Actuation, cylinder 2 ignition coil (T1/2)  
ZU 3 Actuation, cylinder 3 ignition coil (T1/3)  
ZU 4 Actuation, cylinder 4 ignition coil (T1/4)  
ZU 5 Actuation, cylinder 5 ignition coil (T1/5)  
ZU 6 Actuation, cylinder 6 ignition coil (T1/6)  
ZUE1 Actuation, cylinder 1 ignition coil (T1/1)  
ZUE2 Actuation, cylinder 2 ignition coil (T1/2)  
ZUE3 Actuation, cylinder 3 ignition coil (T1/3)  
ZUE4 Actuation, cylinder 4 ignition coil (T1/4)  
ZUE5 Actuation, cylinder 5 ignition coil (T1/5)  
ZUE6 Actuation, cylinder 6 ignition coil (T1/6)  
ZUE7 Actuation, cylinder 7 ignition coil (T1/7)  
ZUE8 Actuation, cylinder 8 ignition coil (T1/8)  
ZV_C Lock CL actuation, left front door central locking motor (A85m1)  
ZV_O Release CL actuation, left front door central locking motor (A85m1)