Ignition Knob Switch Check

INTELLIGENT KEY SYSTEM


Ignition Knob Switch Check

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
M42 terminal 27 and ground.





OK or NG
OK - Ignition knob switch is OK.
NG - 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 M49 terminal 4 and ground.

4 - Ground : Battery voltage






OK or NG
OK - GO TO 3.
NG - 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 3 and 4.










OK or NG
OK - GO TO 4.
NG - Replace key switch and ignition knob switch.
4.CHECK IGNITION KNOB SWITCH CIRCUIT
1. Check continuity between Intelligent Key unit harness connector M42 (A) terminal 27 and key switch and ignition knob switch harness connector M49 (B) terminal 3.

27 - 3 : Continuity should exist.






2. Check continuity between Intelligent Key unit harness connector
M42 terminal 27 and ground.

27 - Ground : Continuity should not exist.

OK or NG
OK - Check the condition of harness and harness connector.
NG - Repair or replace harness between Intelligent Key unit and key switch and ignition knob switch.