Electrical Function Schematic For Climate Control Input Signals - PE83.40-P-2056-97FBA
WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.
Model 205, 253
| Code: | Designation: | Position: |
|---|---|---|
| 1 | Circuit 15, status | 26E |
| 10 | Evaporator temperature sensor, signal | 24B |
| 11 | Refrigerant pressure sensor, signal | 24A |
| 12 | Sun sensor, signal | 10D |
| 12 | Sun sensor, signal | 23F |
| 13 | Air quality sensor, signal | 24B |
| 14 | Vehicle speed, signal | 15J |
| 14 | Vehicle speed, signal | 26F |
| 15 | Engine speed, signal | 13L |
| 15 | Engine speed, signal | 7K |
| 15 | Engine speed, signal | 26G |
| 16 | Door rotary tumbler switch, status | 29E |
| 17 | Side window position, signal | 29E |
| 18 | Sliding roof position, signal | 31E |
| 18 | Sliding roof position, signal | 30E |
| 19 | Soft top position, status | 29E |
| 2 | Engine running, signal | 14L |
| 2 | Engine running, signal | 7K |
| 2 | Engine running, signal | 26E |
| 20 | Operation, signal | 28B |
| 20 | Operation, signal | 20J |
| 20 | Operation, signal | 14H |
| 20 | Operation, signal | 13H |
| 20 | Operation, signal | 19H |
| 20 | Operation, signal | 26E |
| 20 | Operation, signal | 24C |
| 21 | Audio/COMAND® display, actuation | 24J |
| 22 | Low voltage differential signal video signal data transfer, signal | 24G |
| 23 | Voice input, signal | 26F |
| 23 | Voice input, signal | 14H |
| 24 | Central air distribution position detection microswitch, status | 27B |
| 25 | Switch on ionization, request | 26F |
| 25 | Switch on ionization, request | 15H |
| 26 | Switch on perfume atomizer, request | 16H |
| 26 | Switch on perfume atomizer, request | 26G |
| 27 | Perfume atomizer intensity, request | 16H |
| 27 | Perfume atomizer intensity, request | 26G |
| 28 | High-voltage battery cooling output, request | 12K |
| 28 | High-voltage battery cooling output, request | 26H |
| 28 | High-voltage battery cooling output, request | 7J |
| 29 | High-voltage battery cooling system expansion valve, status | 12K |
| 29 | High-voltage battery cooling system expansion valve, status | 25E |
| 3 | Outside temperature sensor, signal | 12C |
| 30 | GPS, signal | 25F |
| 30 | GPS, signal | 15H |
| 31 | Evaporator drying, request | 16J |
| 31 | Evaporator drying, request | 25F |
| 32 | Crash, signal | 13J |
| 32 | Crash, signal | 25F |
| 4 | Outside temperature, signal | 23E |
| 5 | Interior temperature, signal | 13C |
| 5 | Interior temperature, signal | 23E |
| 5 | Interior temperature, signal | 22E |
| 6 | Air outlet temperature sensor, signal | 28C |
| 7 | Dew point temperature, signal | 23E |
| 7 | Dew point temperature, signal | 10D |
| 8 | Coolant temperature sensor, signal | 4E |
| 8 | Coolant temperature sensor, signal | 7L |
| 8 | Coolant temperature sensor, signal | 26F |
| 8 | Coolant temperature sensor, signal | 13L |
| 9 | Coolant temperature, signal | 13L |
| 9 | Coolant temperature, signal | 7K |
| 9 | Coolant temperature, signal | 26F |
| 9 | Coolant temperature, signal | 26F |
| A1 | Instrument cluster | 19J |
| A105 | Touchpad | 45F |
| A26/17 | Head unit | 21G |
| A40/8 | Audio/COMAND® display | 25H |
| A40/9 | Audio/COMAND® control panel | 45K |
| A98/1 | Sliding roof control module | 37C |
| A98n1 | Panoramic sliding roof control unit | 40D |
| B10/31 | Left side air outlet temperature sensor | 33D |
| B10/32 | Right side air outlet temperature sensor | 33D |
| B10/35 | Left footwell air outlet temperature sensor | 33E |
| B10/36 | Right footwell air outlet temperature sensor | 33E |
| B10/6 | Evaporator temperature sensor | 22C |
| B10/8 | Rear center air vent air outlet temperature sensor | 33D |
| B11/4 | Coolant temperature sensor | 5C |
| B11/4 | Coolant temperature sensor | 2J |
| B12 | Refrigerant pressure sensor | 22A |
| B14 | Outside temperature sensor | 10A |
| B31 | Air quality sensor | 20B |
| B38/2 | Rain/light sensor with additional functions | 7E |
| B38/2b3 | Humidity/temperature sensor | 7E |
| B38/2b5 | Sun sensor | 7E |
| CAN A | Telematics CAN | 26L |
| CAN A | Telematics CAN | 23H |
| CAN A | Telematics CAN | 34L |
| CAN B | Interior CAN | 20F |
| CAN B | Interior CAN | 17G |
| CAN B | Interior CAN | 34F |
| CAN B | Interior CAN | 35F |
| CAN B | Interior CAN | 33G |
| CAN B | Interior CAN | 28G |
| CAN B | Interior CAN | 20F |
| CAN C1 | Drive train CAN | 5L |
| CAN MM] | User interface CAN | 17G |
| CAN HMI | User interface CAN | 11J |
| CAN HMI | User interface CAN | 16J |
| CAN L | Hybrid CAN | 6K |
| Code 357 | Card navigation | 24E |
| Code 357 | Card navigation | 16H |
| Code 365 | 24E | |
| Code 365 | 17H | |
| Code 413 | Panoramic sliding sunroof | 39C |
| Code 414 | Sliding roof | 36C |
| Code 446 | Touchpad only | 44F |
| Code 446 | Touchpad only | 44J |
| Code 531 | COMAND® APS | 13G |
| Code 531 | COMAND® APS | 26E |
| Code 531 | COMAND® APS | 17H |
| Code 531 | COMAND® APS | 24F |
| Code 581 | THERMOTRONIC automatic air conditioning | 32C |
| Code 581 | THERMOTRONIC automatic air conditioning | 32D |
| Code 581 | THERMOTRONIC automatic air conditioning | 20A |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUG IN) | 18E |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUG IN) | 11K |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) | 24D |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) | 32A |
| Code ME05 | HYBRID DRIVE 80 KW VARIANT (INCLUDING PLUGIN) | 5H |
| Code ME06 | Hybrid drive 50 KW VARIANT (INCLUDING PLUGIN) | 11K |
| Code ME06 | Hybrid drive 50 KW VARIANT (INCLUDING PLUGIN) | 24D |
| Code ME06 | Hybrid drive 50 KW VARIANT (INCLUDING PLUGIN) | 32A |
| Code ME06 | Hybrid drive 50 KW VARIANT (INCLUDING PLUGIN) | 5H |
| Code P21 | AIR-BALANCE package | 17H |
| Code P21 | AIR-BALANCE package | 27F |
| Flex E | Chassis FlexRay | 11L |
| LIN B13 | Roof LIN | 14D |
| LIN B16 | Rain and Light sensor LIN | 9D |
| LIN B8-1 | Front air conditioning control LIN | 23B |
| LIN B8-2 | Climate control LIN 2 | 29A |
| LIN B8-3 | AC operation LIN | 29C |
| LIN B8-3 | AC operation LIN | 23C |
| LVDS | Low voltage differential signal | 23H |
| N10/6 | Front SAM control unit | 11C |
| N127 | Drivetrain control unit | 9K |
| N2/10 | Supplemental restraint system control unit | 10F |
| N22/1 | Climate control control unit | 26C |
| N22/4 | Rear air conditioning operating unit | 32C |
| N22/6 | Rear control unit | 28H |
| N3/10 | ME-SFI [ME] control unit | 7F |
| N3/9 | CDI control unit | 3F |
| N33/5 | High-voltage PTC heater | 33B |
| N33/5b1 | High-voltage PTC heater temperature sensor | 33B |
| N58/1 | Climate control operating unit | 21C |
| N58/1s10 | Right temperature selection button | 18B |
| N58/1s12 | Climate control menu button | 18B |
| N58/1s14 | Air distribution button, left | 18B |
| N58/1s15 | "SYNC" button | 18C |
| N58/1s16 | "A/C" button | 18C |
| N58/1s17 | Air distribution button, right | 18C |
| N58/1s18 | Button "A/C" and residual heat on/off | 18C |
| N58/1s19 | Blower button, front | 18D |
| N58/1s2 | Left temperature selection button | 18A |
| N58/1s20 | AUTO button, front | 18D |
| N58/1s21 | Defrosting button | 18D |
| N58/1s22 | Air distribution button | 18D |
| N58/1s23 | Pre-air conditioning button | 18E |
| N58/1s24 | Temperature selection button | 18F |
| N58/1s4 | Air recirculation mode button | 18A |
| N58/1s6 | Climate control menu and residual heat on/off button | 18B |
| N69/1 | Left front door control unit | 31H |
| N69/2 | Right front door control unit | 34H |
| N69/3 | Left rear door control unit | 37H |
| N69/4 | Right rear door control unit | 40H |
| N70 | Overhead control panel control unit | 16B |
| N70b1 | Interior temperature sensor with integrated fan | 16B |
| N73 | Electronic ignition switch control unit | 14J |
| N82/2 | Battery management system control unit | 6J |
| S24/1 | Central air distribution position detection microswitch | 27A |
| U1253 | Valid for model 253 | 35H |
| U1253 | Valid for model 253 | 38H |
| U1253 | Valid for model 253 | 26E |
| U1253 | Valid for model 253 | 13G |
| U1253 | Valid for model 253 | 13C |
| U1253 | Valid for model 253 | 21E |
| U1581 | Valid without code (581) THERMOTRONIC automatic air conditioning | 26A |
| U1589 | Valid up to model year 2019 | 13B |
| U1590 | Valid up to model year 2020 | 13C |
| U1591 | Not valid for model 253.99 | 3C |
| U1592 | Valid for model 253.99 | 11K |
| U1592 | Valid for model 253.99 | 18E |
| U1592 | Valid for model 253.99 | 24E |
| U1592 | Valid for model 253.99 | 32A |
| U1592 | Valid for model 253.99 | 2J |
| U1592 | Valid for model 253.99 | 5J |
| U2019 | Valid as of model year 2019 | 21D |
| U2020 | Valid as of model year 2020 | 27F |
| U2020 | Valid as of model year 2020 | 14H |
| U2020 | Valid as of model year 2020 | 21E |
| U2050 | Valid for model 205.0 | 35H |
| U2050 | Valid for model 205.0 | 38H |
| U2051 | Valid for model 205.1 | 35H |
| U2051 | Valid for model 205.1 | 38H |
| U2052 | Valid for model 205.2 | 35J |
| U2052 | Valid for model 205. 2 | 38J |
| U2054 | Valid for model 205.4 | 27H |
| U390 | Valid for model 205 | 13B |
| U390 | Valid for model 205 | 21D |
| U74 | Valid for diesel engines | 2F |
| U75 | Valid for gasoline engines | 6F |