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 (1).
- The low tire pressure warning lamp in the combination meter blink according to the self-diagnostic results.

NOTE:
If low tire pressure warning lamp blinks as shown in the figure, the system is normal.





- This mode shows transmitter status is in OFF-mode.
Perform transmitter wake up operation. Refer to Special Repair Requirement.




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 voltage between tire pressure warning check switch connector and ground.





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





4. Check continuity between BCM harness connector and ground.





Is the inspection result normal?
YES - GO TO 3.
NO - Repair or replace damaged parts.
3.CHECK BCM
Check BCM input/output signal. Refer to Pinout Values and Diagnostic Parameters.
Is the inspection result normal?
YES - INSPECTION END
NO - Check BCM pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts. Replace BCM. Refer to Removal and Installation.