Operation-Exterior Lamps

WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.

The headlamps operate through the headlamp switch which provides a ground signal to the headlamp beam selector in the multi-function switch. The multi-function switch sends a low or high beam signal input to the Central Timer Module (CTM), which provides current to the headlamps.

For park lamps operation the headlamp switch provides a ground signal to the Central Timer Module (CTM), which energizes the park lamp relay. Once the park lamp relay is energized, voltage is provided to the park lamps.

For fog lamps operation the headlamp switch provides a ground signal to the Central Timer Module (CTM) which energizes the fog lamp relay. Once the fog lamp relay is energized, voltage is provided to the fog lamps.

Day Time Running Lights (Headlamps) System, installed on vehicles manufactured for sale in Canada only, illuminate the headlamps when the ignition switch is turned to the on position and the CTM receives a vehicle-moving signal from the vehicle speed sensor. This provides a constant Headlamps ON condition as long as the vehicle is moving. The lamps are illuminated at less than 50% of normal intensity.