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Home >> Infiniti >> 2013 >> G37 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator (Convertible) >> Ecu Diagnosis Information >> Unified Meter And A/C Amp. >> Reference Value >> Physical Values

Physical Values

Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
4 (G) Ground Stop lamp switch signal Input Ignition switch OFF Brake pedal is depressed 12 V
Other than the above 0 V
5 (L) Ground Manual mode shift up signal Input Ignition switch ON Selector lever up position 0 V
Other than the above 12 V
6 (BG) Ground Paddle shifter up signal Input Ignition switch ON Paddle shifter up operation 0 V
Other than the above 12 V
7 (GR) Ground Communication signal (AMP. → METER) Output Ignition switch ON -
G04878826
8 (L) Ground Vehicle speed signal (2-pulse) Output Ignition switch ON Speedometer operated [When vehicle speed is approx. 40 km/h (25 MPH)]
NOTE: The maximum voltage varies depending on the specification (destination unit).
G05223700
9 (SB) Ground Seat belt buckle switch signal (driver side) Input Ignition switch ON When seat belt (driver side) is fastened 12 V
When seat belt (driver side) is unfastened 0 V
10 (W) Ground Manual mode signal Input Ignition switch ON Selector lever DS position 0 V
Other than the above 12 V
11 (G) Ground Non-manual mode signal Input Ignition switch ON Selector lever DS position 12 V
Other than the above 0 V
14 (SB) Ground Communication signal (LCD → AMP.) Input Ignition switch ON -
G05223682
20 (G) Ground ION ON/OFF signal Output Ignition switch ON Blower motor: ON 0 V
Blower motor: OFF 12 V
25 (V) Ground Manual mode shift down signal Input Ignition switch ON Selector lever down position 0 V
Other than the above 12 V
26 (G) Ground Paddle shifter down signal Input Ignition switch ON Paddle shifter down operation 0 V
Other than the above 12 V
27 (LG) Ground Communication signal (METER → AMP.) Input Ignition switch ON -
G04878825
28 (R) Ground Vehicle speed signal (8-pulse) Output Ignition switch ON Speedometer operated [When vehicle speed is approx. 40 km/h (25 MPH)]
NOTE: The maximum voltage varies depending on the specification (destination unit).
G05223684
30 (V) Ground Parking brake switch signal Input Ignition switch ON Parking brake applied 0 V
Parking brake released
G05223673
34 (B) Ground Communication signal (AMP. → LCD) Output Ignition switch ON -
G05223680
38 (P) Ground Blower motor control signal Output Ignition switch ON Fan speed: 1st speed (manual)
G05046089
41 (BR) Ground ACC power supply Input Ignition switch ACC - Battery voltage
42 (BR) Ground Fuel level sensor signal Input Ignition switch ON -
G05223669
43 (R) Ground Intake sensor signal Input Ignition switch ON - 0 - 4.8 V
Output voltage varies with intake temperature.
44 (LG) Ground In-vehicle sensor signal Input Ignition switch ON - 0 - 4.8 V
Output voltage varies with in-vehicle temperature.
45 (V) Ground Ambient sensor signal Input Ignition switch ON -
G05223707
46 (BG) Ground Sunload sensor signal Input Ignition switch ON - 0 - 4.8 V
Output voltage varies with amount of sunload.
47 (G) Ground Exhaust gas/outside odor detecting sensor signal Input Ignition switch ON
NOTE: The signal is different by measurement environment of a vehicle
G05973976
53 (W) Ground Ignition power supply Input Ignition switch ON - Battery voltage
54 (BG) Ground Battery power supply Input Ignition switch OFF - Battery voltage
55 (B) Ground Ground - Ignition switch ON - 0 V
56 (L) Ground CAN-H - - - -
57 (LG) Ground Brake fluid level switch signal Input Ignition switch ON Brake fluid level is normal.
G05223686
The brake fluid level is lower than the low level 0 V
58 (Y) Ground Fuel level sensor ground - Ignition switch ON - 0 V
59 (GR) Ground Intake sensor ground - Ignition switch ON - 0 V
60 (L) Ground In-vehicle sensor ground - Ignition switch ON - 0 V
61 (R) Ground Ambient sensor ground - Ignition switch ON - 0 V
62 (SB) Ground Sunload sensor ground - Ignition switch ON - 0 V
63(1) (L) - - - - - -
65 (BG) Ground ECV signal Output Ignition switch ON Self-diagnosis. STEP-4 (Code No. 45)
G05221701
69 (L) Ground A/C LAN signal Input/Output Ignition switch ON -
G04877986
70 (R) Ground Each door motor power supply Output Ignition switch ON - Battery voltage
71 (GR) Ground Ground - Ignition switch ON - 0 V
72 (P) Ground CAN-L - - - -
(1) Unified meter and A/C amp. does not use this terminal for control.