ABS/TCS Control Unit Power and Ground Systems 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

BATTERY VOLTAGE

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.
2. Check the terminals for deformation, disconnection, looseness or damage.
OK or NG

OK: GO TO 3.

NG: Repair or replace as necessary.

Self-diagnosis results
BATTERY VOLTAGE

ABS/TCS CONTROL UNIT POWER AND GROUND CIRCUIT INSPECTION

Measure the voltage and continuity between the ABS actuator and electric unit (control unit) connector E125 and ground.

VOLTAGE REFERENCE CHART

Signal name	ABS actuator and electric unit (control unit) connector E125	Ground	Measured value
Power supply	29	-	Battery voltage (Approx. 12V)
Ground	16		Continuity should exist.
Ground	30		Continuity should exist.

OK or NG

OK: Check the battery for loose terminals, low voltage, etc. Repair as necessary.

NG: Repair the circuit.