Inspection Procedure

WARNING: This page is about a different car, the 2006 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
SELF-DIAGNOSTIC RESULTS TABLE

Self-diagnostic results

STOP LAMP SW

Is above displayed in the self-diagnosis item?

YES: GO TO 2.

NO: INSPECTION END
CHECK STOP LAMP
1. Turn ignition switch OFF and disconnect stop lamp switch connector and VDC/TCS/ABS control unit connector.
2. Reconnect connectors securely.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, then perform self-diagnosis.
Do any self-diagnostic items appear?

YES: GO TO 3.

NO: Poor connection. Repair or replace connector.

Self-diagnostic results
STOP LAMP SW

CHECK STOP LAMP SWITCH CIRCUIT

Turn ignition switch OFF and disconnect VDC/TCS/ABS control unit harness connector.

Check continuity between VDC/TCS/ABS control unit harness connector M93 terminal 48 and ground.

STOP LAMP SWITCH CIRCUIT

VDC/TCS/ABS control unit	Ground	Measurement condition	Voltage
48	-	Brake pedal depressed	Battery voltage (Approx. 12 V)
48	-	Brake pedal not depressed	Approx. 0 V

Fig 1: Checking Continuity Between VDC/TCS/ABS Control Unit Connector M93 Terminal 48 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Perform VDC/TCS/ABS control unit self-diagnosis again.

NG: Open or short in harness between VDC/TCS/ABS control unit and stop lamp switch