Turn Signal Lamp Blinks

TURN SIGNAL LAMP BLINKS

Description

DESCRIPTION
The turn signal lamp blinks when the ignition switch is turned ON.
The BCM connector or circuit may have a malfunction.

Diagnosis Procedure

1.CHECK TIRE PRESSURE WARNING CHECK SWITCH POWER SUPPLY
1. Turn ignition switch "ON".
2. Check voltage between tire pressure warning check switch connector M23 terminal 1 and ground.





Is the reference voltage outputted?
YES >> Repair or replace BCM circuit. Replace BCM.
NO >> GO TO 2.

2.CHECK TIRE PRESSURE WARNING CHECK SWITCH CIRCUIT
1. Turn ignition switch "OFF".
2. Disconnect BCM harness connector.
3. Check continuity between BCM harness connector M123 terminal 149 and tire pressure warning check switch connector M23 terminal 1. Also check harness for short to ground.





Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.

3.CHECK SYMPTOM
Check again.
Does the turn signal lamp remain blinking?
YES >> Check turn signal lamp operation. Refer to BCS-21, "FLASHER: CONSULT-III Function (BCM FLASHER)". Flasher
NO >> INSPECTION END