B261A

B261A PUSH-BUTTON IGNITION SWITCH

DTC Logic


DTC DETECTION LOGIC

NOTE:
- If DTC B261A is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
"DTC Logic" Body Control System.
- If DTC B261A is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010. Refer to
"DTC Logic" Body Control System.






DTC CONFIRMATION PROCEDURE


1. PERFORM DTC CONFIRMATION PROCEDURE

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


Diagnosis Procedure


1. CHECK IGNITION SWITCH OUTPUT SIGNAL (PUSH-BUTTON IGNITION SWITCH)

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





Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.

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

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





3.Check continuity between push-button ignition switch harness connector and ground.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness.

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

Check voltage between IPDM E/R harness connector and ground.





Is the inspection result normal?
YES- Replace IPDM E/R.
NO- GO TO 4.

4. 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 push-button ignition switch harness connector and ground.





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

5. CHECK INTERMITTENT INCIDENT

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