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Home >> Infiniti >> 2013 >> M37 x >> Repair and Diagnosis >> Steering >> Manual Steering >> Steering Control System (With 4WAS) >> Ecu Diagnosis Information >> 4WAS Front Control Unit >> Reference Value >> Physical Values
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Physical Values

Terminal No. (Wire color) Description Condition Value (Approx.)
+ - Signal name Input/Output
1 (R) - 4WAS front motor V terminal - - -
2 (LG) Ground Front wheel angle sensor signal (sin) Input Ignition switch: ON 0 - 5 V
3 (B) - 4WAS front lock solenoid valve ground - - -
4 (B) - Front wheel angle sensor ground - - -
5 (L) - 4WAS front motor U terminal - - -
6 (G) - 4WAS front motor W terminal - - -
7 (V) Ground Front wheel angle sensor signal (cos) Input Ignition switch: ON 0 - 5 V
8 (P) Ground Front wheel angle sensor signal (Excitation) Output Ignition switch: ON 0 - 5 V
10 (Y) Ground 4WAS front lock solenoid valve power supply Output Ignition switch: ON Battery voltage
Ignition switch: OFF (Wait 10 min. or more.) 0 V
11 (R) Ground 4WAS front motor power supply Input Ignition switch: ON Battery voltage
Ignition switch: OFF (Wait 10 min. or more.) 0 V
12 (B) Ground 4WAS front motor ground - Always 0 V
14 (R) - 4WAS communication-L - - -
15 (W) Ground Ignition switch power supply Input Ignition switch: ON Battery voltage
Ignition switch: OFF 0 V
18 (B) Ground Ground - Always 0 V
25 (L) - 4WAS communication-H - - -
34 (B) Ground Ground - Always 0 V
CAUTION: When using circuit tester to measure voltage for inspection, never forcibly extend any connector terminals.