Principles of Operation

Turn Signal, Cornering and Hazard Lamps

Principles of Operation

Turn Signals

When the multifunction switch is placed in the LH or RH TURN position, voltage is routed to the turn lamps. The Lighting Control Module (LCM) flashes the turn lamps at approximately 80 times per minute if both the front and rear turn lamps operate correctly. If only an individual turn signal lamp operates, the LCM flashes the remaining turn lamp approximately 160 times per minute.

Cornering Lamps

The cornering lamps are supplied voltage from the parking lamp circuit when the parking lamps are on. When the multifunction switch is placed in the LH or RH TURN position (with the parking lamps on), the multifunction switch provides ground to the corresponding cornering lamp. The cornering lamp remains illuminated until the turn signal cancels.

Hazard Lamps

When the hazard switch is engaged, the LCM flashes all the turn lamps at approximately 80 times per minute.