Stop Lamp Switch System Inspection

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

INSPECTION PROCEDURE

SELF-DIAGNOSIS RESULT CHECK
Check self-diagnosis results.
SELF-DIAGNOSIS RESULT

Self-diagnosis results

STOP LAMP SW

Is the above displayed in the self-diagnosis display items?

YES: GO TO 2.

NO: Inspection End.
CONNECTOR INSPECTION
1. Disconnect the ABS actuator and electric unit (control unit) connector E125 and stop lamp switch connector E38.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG

OK: GO TO 3.

NG: Repair or replace as necessary.
STOP LAMP SWITCH INSPECTION
Turn the ignition switch ON and check the voltage between the ABS actuator and electric unit (control unit) connector E125 terminal 17 and ground.

17 - Ground

Brake pedal depressed: Battery voltage (approx. 12V)

Brake pedal not depressed: Approx. 0V

OK or NG

OK: Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

NG: Repair the circuit.

Fig 1: Identifying Voltage Between ABS Actuator And Electric Unit (Control Unit) Connector Terminal 17 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.