Ignition Switch & Key Unlock Warning System: Inspection
- INSPECT IGNITION SWITCH CONTINUITY IGNITION SWITCH CONTINUITY
Switch position Tester connection Specified condition LOCK - No continuity ACC 2 - 3 Continuity ON 2 - 3 - 4
6 - 7Continuity START 1 - 2 - 4
6 - 7 - 8Continuity If continuity is not as specified, replace the switch.
- INSPECT IGNITION SWITCH CIRCUIT
Connect the switch connector and inspect the connector on wire harness side from the back side, as shown in Fig 2.
IGNITION SWITCH CIRCUIT SPECIFIED CONDITIONTester connection Condition Specified condition 2 - Ground Constant Battery positive voltage 3 - Ground Ignition switch ACC or ON Battery positive voltage 4 - Ground Ignition switch ON Battery positive voltage 6 - Ground Ignition switch ON or START Battery positive voltage 7 - Ground Constant Battery positive voltage 8 - Ground Ignition switch START Battery positive voltage If circuit is not as specified, inspect the circuits connected to other parts.
- INSPECT IGNITION KEY ILLUMINATION OPERATION
Connect the positive (+) lead from the battery to terminal 1 and the negative (-) lead to terminal 2, and check that the indicator light lights up.
If operation is not as specified, replace the switch.
- INSPECT IGNITION KEY ILLUMINATION CIRCUIT
(See ILLUMINATION CIRCUIT )
- INSPECT KEY UNLOCK WARNING SWITCH CONTINUITY KEY UNLOCK WARNING SWITCH CONTINUITY
Switch position Tester connection Specified condition OFF (Key removed) - No continuity ON (Key set) 1 - 2 Continuity If continuity is not as specified, replace the switch.
- INSPECT KEY UNLOCK WARNING SWITCH CIRCUIT
(See KEY UNLOCK WARNING SWITCH CIRCUIT )
Connect the switch connector and inspect the connector on wire harness side from the back side, as shown in Fig 5.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
KEY UNLOCK WARNING SWITCH CIRCUIT CONNECTOR SPECIFIED CONDITIONTester connection Condition Specified condition 1 - Ground Constant Continuity If circuit is not as specified, inspect the circuits connected to other parts.