B2014

B2014 CHAIN OF STRG-IMMU





DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
1. Lock steering.

NOTE:





3. Press the push-button ignition switch.
4. Check DTC in "Self Diagnostic Result" mode of "BCM" using CONSULT-III.
Is DTC detected?
YES - Go to SEE Diagnosis Procedure.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK STEERING LOCK UNIT POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect steering lock unit connector.
3. Check voltage between steering lock unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - GO TO 2.
2.CHECK STEERING LOCK UNIT POWER SUPPLY CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.





3. Check continuity between steering lock unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace harness.
3.CHECK STEERING LOCK UNIT GROUND CIRCUIT
Check continuity between steering lock unit and ground.





Is the inspection result normal?
YES - GO TO 4.
NO - Repair or replace harness.
4.CHECK STEERING LOCK UNIT COMMUNICATION SIGNAL
1. Connect steering lock unit connector and BCM connector.
2. Read voltage signal between steering lock unit harness connector and ground.






NOTE:





Is the inspection result normal?
YES - GO TO 5.
NO - GO TO 6.
5.REPLACE STEERING LOCK UNIT
1. Replace steering lock unit.
2. Perform the service procedure for steering lock unit replacement. Refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
- INSPECTION END
6.CHECK STEERING LOCK UNIT COMMUNICATION CIRCUIT
1. Disconnect steering lock unit and BCM connector.
2. Check continuity between steering lock unit harness connector and BCM harness connector.





3. Check continuity between steering lock unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 7.
NO - Repair or replace harness.
7.REPLACE BCM
1. Replace BCM. Service and Repair.
2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT-III.
For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.
- INSPECTION END