B261A PUSH-BUTTON IGNITION SWITCH
Description
IPDM E/R transmits the push-button ignition switch status via CAN communication to BCM. BCM receives push-button ignition switch status by hard wire input. BCM compares the 2 signals for mismatch.
DTC Logic
DTC DETECTION LOGIC
NOTE:
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Press the push-button ignition switch under the following conditions and wait for at least 1 second.
CVT selector lever is in the P position
Do not depress brake pedal.
Check "Self diagnostic result" with CONSULT-III. Is DTC detected? YES >> Refer to "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis Procedure
1.CHECK PUSH-BUTTON IGNITION SWITCH OUTPUT SIGNAL 1
Turn ignition switch OFF.
Disconnect push-button ignition switch harness connector and IPDM E/R harness connector.
Check voltage between push-button ignition switch harness connector and ground.
Is the Inspection result normal?
YES >> GO TO 4
NO >> GO TO 2
2.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT
Disconnect BCM harness connector.
Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and BCM harness connector M19 (B) terminal 77.
Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and ground.
Is the Inspection result normal?
YES >> GO TO 3
NO >> Repair harness or connector.
3.CHECK PUSH-BUTTON IGNITION SWITCH
Disconnect IPDM E/R harness connector.
Check continuity between push-button ignition switch harness connector M38 (A) terminal 4 and IPDM E/R harness connector E18 (B) terminal 28.
Check continuity between push-button ignition switch harness connector and ground.
Is the Inspection result normal?
YES >> GO TO 4
NO >> Repair harness or connector.
4.CHECK INTERMITTENT INCIDENT
Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident .
>> Inspection End.