C1109

C1109 POWER AND GROUND SYSTEM

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. CHECK SELF-DIAGNOSTIC RESULT

With CONSULT.
1.Turn the ignition switch OFF to ON.
2.Perform self-diagnostic result.
Is DTC C1109 detected?
YES- Proceed to diagnosis procedure. Refer to "Diagnosis Procedure" .
NO- Inspection End.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Antilock Brakes / Traction Control Systems.

1. CONNECTOR INSPECTION

1.Turn ignition switch OFF.
2.Disconnect ABS actuator and electric unit (control unit) connectors.
3.Check connectors and terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace as necessary.

2. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT

Check voltage between ABS actuator and electric unit (control unit) connector E125 terminal 34 and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace malfunctioning components.

3. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) BATTERY POWER SUPPLY CIRCUIT

Check voltage between ABS actuator and electric unit (control unit) connector E125 terminals 3, 4 and ground.





Revision: March 20122013 Infiniti JX

Is the inspection result normal?
YES- GO TO 4.
NO- Repair or replace malfunctioning components.

4. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Check continuity between ABS actuator and electric unit (control unit) connector E125 terminals 1, 2 and ground.





Is the inspection result normal?
YES- Replace ABS actuator and electric unit (control unit). Refer to "Removal and Installation" Removal and Installation.
NO- Repair or replace malfunctioning components.
Revision: March 20122013 Infiniti JX