LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> M37 x >> Repair and Diagnosis >> Steering >> Manual Steering >> Steering Control System (With 4WAS) >> Ecu Diagnosis Information >> 4WAS Main Control Unit >> Reference Value >> Physical Values
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Physical Values

Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (L) - CAN-H - - -
4 (R) Ground Rear wheel steering angle sensor (main) output voltage Output 4WAS rear actuator assembly turns right completely. 4.4 V
4WAS rear actuator assembly is neutral 2.4 V
4WAS rear actuator assembly turns left completely. 0.4 V
5 (V) Ground Rear wheel steering angle sensor power supply Output Ignition switch: ON 5 V
Ignition switch: OFF 0 V
7 (LG) Ground Rear wheel steering angle sensor (sub) output voltage Output 4WAS rear actuator assembly turns right completely. 4.6 V
4WAS rear actuator assembly is neutral 2.6 V
4WAS rear actuator assembly turns left completely. 0.6 V
8 (P) - CAN-L - - -
15 (W) Ground Rear wheel steering angle sensor ground - Always 0 V
22 (P) Ground Stop lamp switch Input Brake pedal: Depressed Battery voltage
Brake pedal: Released 0 V
25 (G) Ground 4WAS rear motor relay Input Ignition switch: ON Battery voltage
Ignition switch: OFF 0 V
27 (R) Ground Ignition switch Input Ignition switch: ON Battery voltage
Ignition switch: OFF 0 V
31 (W/L) - 4WAS communication-H - - -
32 (GR/V) - 4WAS communication-L - - -
34 (B/Y) Ground Ground - Always 0 V
36 (SB) Ground Power steering solenoid valve Output Vehicle speed: 0 km/h (0 MPH) (Engine speed: 400 rpm or more) 4.4 - 6.6 V
Vehicle speed: 60 km/h (37 MPH) 1.4 - 3.6 V
37 (L) Ground 4WAS rear motor power supply Input Ignition switch: ON Battery voltage
Ignition switch: OFF 0 V
38 (R) Ground 4WAS rear motor output voltage (right) Output While 4WAS rear motor activates rightward Battery voltage
While 4WAS rear motor activates leftward 0 V
39 (P) Ground 4WAS rear motor output voltage (left) Output While 4WAS rear motor activates rightward 0 V
While 4WAS rear motor activates leftward Battery voltage
40 (B/Y) Ground 4WAS rear motor ground - Always 0 V
CAUTION: When using circuit tester to measure voltage for inspection, never forcibly extend any connector terminals.