B2556

INTELLIGENT KEY SYSTEM/ENGINE START FUNCTION


B2556 ENG START SW


DIAGNOSIS DESCRIPTION
When the push-button ignition switch input, which inputs to the Intelligent Key unit, continues for 100 seconds or more, B2556 push-button ignition switch judges that it is the malfunction and displays the DTC (Diagnostic
Trouble Code)

TERMINALS AND REFERENCE VALUE FOR INTELLIGENT KEY UNIT






SELF-DIAGNOSTIC LOGIC






DIAGNOSTIC PROCEDURE
1.CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit and push-button ignition switch connector.
3. Check continuity between Intelligent Key unit connector and push-button ignition switch connector.










4. Check continuity between Intelligent Key unit connector and ground.





OK or NG
OK - GO TO 2.
NG - Repair or replace harness.
2.CHECK PUSH-BUTTON IGNITION SWITCH
Check push-button ignition switch.










OK or NG
OK - Check the condition of harness and connector. If it is
OK, check the self-diagnosis results using CONSULT-III again.
NG - Replace push-button ignition switch.