MOD

WARNING SYSTEMS ON INDICATOR CIRCUIT

Component Function Check


1. CHECK WARNING SYSTEMS ON INDICATOR

1.Turn the ignition switch ON.
2.Select the active test item "BSW ON INDICATOR" of "AVM" with CONSULT.
3.With operating the test item, check the operation.

On: Warning systems ON indicator illuminates
Off: Warning systems ON indicator is turned OFF

Is the inspection result normal?
YES- Inspection End.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" ITS.

1. CHECK WARNING ON INDICATOR POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect warning system switch connector.
3.Turn ignition switch ON.
4.Check voltage between warning system switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair the warning systems ON indicator power supply circuit.

2. CHECK WARNING SYSTEMS ON INDICATOR SIGNAL FOR OPEN

1.Turn ignition switch OFF.
2.Disconnect the ITS control unit harness connector.
3.Check continuity between the ITS control unit harness connector and warning system switch harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair the harnesses or connectors.

3. CHECK WARNING SYSTEMS ON INDICATOR SIGNAL CIRCUIT FOR SHORT

Check continuity between the ITS control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- Repair the harnesses or connectors.

4. CHECK WARNING SYSTEMS ON INDICATOR

Check the warning systems ON indicator. Refer to "Component Inspection" .
Is the inspection result normal?
YES- Replace the ITS control unit. Refer to "Removal and Installation ITS Control Unit" Removal And Installation - ITS Control Unit.
NO- Replace warning systems switch. "Removal and Installation" LDW.


Component Inspection


1. CHECK WARNING SYSTEMS ON INDICATOR

Apply battery voltage to warning systems switch terminals 3 and 5, and then check if the warning systems ON
indicator illuminates.





Is the inspection result normal?
YES- Inspection End.
NO- Replace the warning systems switch. Refer to "Removal and Installation" LDW.