Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned On

TROUBLE DIAGNOSIS FOR SYMPTOMS


Low Tire Pressure Warning Lamp Flashes When Ignition Switch Is Turned On


NOTE:
If low tire pressure warning lamp flashes as shown, the system is normal.
Flash Mode A





- This mode shows transmitter status is OFF-mode.
Carry out transmitter wake up operation. Refer to Transmitter Wake Up Operation.
DIAGNOSTIC PROCEDURE
1.CHECK BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors M18 and M20.
3. Check terminals for damage or loose connections.
Inspection results OK?
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK TIRE PRESSURE WARNING CHECK CONNECTOR CIRCUIT
Check continuity between BCM harness connector M18 terminal 15 and check connector M39 terminal 1.






Continuity should exist.

OK or NG
OK >> Replace BCM. Refer to Service and Repair.
NG >> Repair or replace harness connector.