Power Control System

B261A PUSH-BUTTON IGNITION SWITCH

Description

BCM transmits the change in the power supply position with the push-button ignition switch to IPDM E/R via the CAN communication line. IPDM E/R transmits the power supply position status via CAN communication line to BCM.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

1.Press the push-button ignition switch under the following conditions, and wait for at least 1 second.
-Selector lever is in the P or N position.
-Do not depress brake pedal.
2.Check "Self diagnostic result" with CONSULT.
Is DTC detected?
YES- Go to .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK PUSH-BUTTON IGNITION SWITCH OPERATION

Press push-button ignition switch and check if it turns ON.
Does ignition switch turn ON?
YES- GO TO 2.
NO- GO TO 4.

2. CHECK IGNITION SWITCH OUTPUT SIGNAL (IPDM E/R)

1.Disconnect push-button ignition switch connector and BCM connector.
2.Check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 3.
NO- Replace IPDM E/R. Removal And Installation.

3. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (IPDM E/R)

1.Disconnect IPDM E/R connector.
2.Check continuity between IPDM E/R harness connector and push-button ignition switch harness connector.





3.Check continuity between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

4. CHECK IGNITION SWITCH OUTPUT SIGNAL (BCM)

1.Connect BCM connector.
2.Check voltage between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 5.
NO- Replace BCM. Removal And Installation.

5. CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT (BCM)

1.Disconnect BCM connector and IPDM E/R connector.
2.Check continuity between BCM harness connector and push-button ignition switch harness connector.





3.Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace harness.

6. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
- INSPECTION END