Ignition Knob Switch

IGNITION KNOB SWITCH


Diagnosis Procedure

Regarding Wiring Diagram information, Intelligent Key Unit.

1.CHECK IGNITION KNOB SWITCH
With CONSULT-III
Display "PUSH SW" on DATA MONITOR screen, and check if ON/OFF display is linked to ignition switch operation.





Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect Intelligent Key unit connector.





3. Check voltage between Intelligent Key unit harness connector
M70 terminal 27 and ground.





Is the inspection result normal?
YES - Ignition knob switch is OK.
NO - GO TO 2
2.CHECK IGNITION KNOB SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect key switch and ignition knob switch connector.
3. Check voltage between key switch and ignition knob switch harness connector M12 terminal 1 and ground.

1 - Ground : Battery voltage





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace key switch and ignition knob switch power supply circuit.
3.CHECK IGNITION KNOB SWITCH OPERATION
Check continuity between key switch and ignition knob switch terminals 1 and 2.










Is the inspection result normal?
YES - GO TO 4
NO - Replace key switch and ignition knob switch.
4.CHECK IGNITION KNOB SWITCH CIRCUIT
1. Check continuity between Intelligent Key unit harness connector M70 (A) terminal 27 and key switch and ignition knob switch harness connector M12 (B) terminal 2.

27 - 2 : Continuity should exist.





2. Check continuity between Intelligent Key unit harness connector
M70 (A) terminal 27 and ground.

27 - Ground : Continuity should not exist.

Is the inspection result normal?
YES - Check the condition of harness and harness connector.
NO - Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.