B2556

B2556 POWER SWITCH

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Press power switch under the following condition.
-Brake pedal: Not depressed
2.Release power switch and wait 100 seconds or more.
3.Check DTC in "Self Diagnostic Result" mode of "BCM" using CONSULT.
Is DTC detected?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK POWER SWITCH INPUT SIGNAL

1.Turn power switch OFF.
2.Disconnect power switch connector.
3.Check voltage between power switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 2.

2. CHECK POWER SWITCH CIRCUIT

1.Disconnect BCM connector and IPDM E/R connector.
2.Check continuity between power switch harness connector and BCM harness connector.





3.Check continuity between power switch harness connector and ground.





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

3. REPLACE BCM

1.Replace BCM. Refer to "Removal and Installation" Service and Repair.
2.Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
- INSPECTION END

4. CHECK POWER SWITCH GROUND CIRCUIT

Check continuity between power switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness.

5. CHECK POWER SWITCH

Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 6.
NO- Replace power switch. Refer to "Removal and Installation" Power Switch.

6. CHECK INTERMITTENT INCIDENT

Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END


Component Inspection


1. CHECK POWER SWITCH

1.Turn power switch OFF.
2.Disconnect power switch connector.
3.Check continuity between power switch terminals.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace power switch. Refer to "Removal and Installation" Power Switch.