Diagnosis Procedure

TIRE PRESSURE WARNING CHECK SWITCH


Description

The following item can be checked by grounding the tire pressure warning check switch harness connector terminal.




TIRE PRESSURE WARNING CHECK SWITCH


Diagnosis Procedure

1.CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY CIRCUIT
1. Turn the ignition switch ON.

CAUTION:
Never start the engine.
2. Check the voltage between tire pressure warning check switch connector and ground.





Is the inspection result normal?
YES - Repair or replace low tire pressure warning control unit. Replace low tire pressure warning control unit. Refer to Exploded View.
NO - GO TO 2.
2.CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect low tire pressure warning control unit harness connector
3. Check the continuity between low tire pressure warning control unit harness connector and tire pressure warning check switch connector.





4. Check the continuity between low tire pressure warning control unit harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace error-detected parts.
3.CHECK LOW TIRE PRESSURE WARNING CONTROL UNIT
Check the low tire pressure warning control unit input/output signal. Refer to Testing and Inspection.
Is the inspection result normal?
YES - INSPECTION END
NO - Check low tire pressure warning control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts. Replace low tire pressure warning control unit. Refer to Exploded View.