B2556

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
1. Start the engine and wait for at least 100 seconds.
2. Check "Self Diagnostic Result" with CONSULT-III.
Is DTC detected?
YES - B2556.
NO - Inspection End.




Diagnosis Procedure
Regarding Wiring Diagram information, Intelligent Key System/Engine Start Function or NVIS.
1.CHECK PUSH-BUTTON IGNITION SWITCH INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect push-button ignition switch harness connector.





3. Check voltage between push-button ignition switch harness connector M38 terminal 4 and ground.





Is the inspection result normal?
YES - GO TO 2
NO - GO TO 4
2.CHECK PUSH-BUTTON IGNITION SWITCH
B2556.
Is the inspection result normal?
YES - GO TO 3
NO - Replace push-button ignition switch. Push Button Ignition Switch.
3.CHECK INTERMITTENT INCIDENT
Intermittent Incident.
- Inspection End.
4.CHECK PUSH-BUTTON IGNITION SWITCH CIRCUIT FOR SHORT
1. Disconnect BCM harness connector and IPDM E/R harness connector.





2. Check continuity between push-button ignition switch harness connector M38 terminal 4 and ground.





Is the inspection result normal?
YES - Replace BCM. Body Control System.
NO - Repair harness or connector.




Component Inspection
1.CHECK PUSH-BUTTON IGNITION SWITCH
1. Turn ignition switch OFF.
2. Disconnect push-button ignition switch harness connector.





3. 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. Push Button Ignition Switch.