B2556 PUSH-BUTTON IGNITION SWITCH
Description
The switch that changes the power supply position. BCM maintains the power supply position status. BCM changes the power supply position with the operation of the push-button ignition switch.
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
Start the engine and wait for at least 100 seconds.
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 INPUT SIGNAL
Turn ignition switch OFF.
Disconnect push-button ignition switch harness connector.
Check voltage between push-button ignition switch harness connector and ground.
Is the Inspection result normal?
YES >> GO TO 2
NO >> GO TO 4
2.CHECK PUSH-BUTTON IGNITION SWITCH
Refer to Component Inspection.
Is the Inspection result normal?
YES >> GO TO 3
NO >> Replace push-button ignition switch. Refer to See: Sensors and Switches\Sensors and Switches - Starting and Charging\Start / Stop Switch\Service and Repair\Push Button Ignition Switch\Coupe .
3.CHECK INTERMITTENT INCIDENT
Refer to See: Testing and Inspection\Initial Inspection and Diagnostic Overview\Service Information For Electrical Incident\Intermittent Incident .
>> Inspection End.
4.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT FOR SHORT
Disconnect BCM harness connector and IPDM E/R harness connector.
Check continuity between push-button ignition switch harness connector and ground.
Is the Inspection result normal?
YES >> Replace BCM. Refer to See: Body and Frame\Body Control Systems\Body Control Module\Service and Repair .
NO >> Repair harness or connector.
Component Inspection
1.CHECK PUSH-BUTTON IGNITION SWITCH
Turn ignition switch OFF.
Disconnect push-button ignition switch harness connector.
Check continuity between push-button ignition switch terminals under the following conditions.
Is the Inspection result normal?
YES >> Inspection End.
NO >> Replace push-button ignition switch. Refer to See: Sensors and Switches\Sensors and Switches - Starting and Charging\Start / Stop Switch\Service and Repair\Push Button Ignition Switch\Coupe .