Inspection 4: Hazard Warning Lamp Flashes When Ignition Switch Is Turned on

Inspection 4: Hazard Warning Lamp Blinks When Ignition Switch Is Turned On


1. CHECK GROUND CIRCUIT
Disconnect low tire pressure warning control unit connector M143.










Check continuity between low tire pressure warning control unit connector M143 terminal 11 (B) and ground.

OK or NG?

OK >> GO T0 2.
NG >> Repair or replace low tire pressure warning control unit ground circuit.

2. CHECK RELAY
Check low tire pressure warning relay.

OK or NG?

OK >> Replace low tire pressure warning control unit.
NG >> Replace low tire pressure warning relay.