RAM 2500 Truck 4WD L6-6.7L DSL Turbo VIN A (2007)
Headlamp Switch: Testing and Inspection
HEADLAMP SWITCH
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the supplemental restraint system before attempting
any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect
and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further
diagnosis or service. This is the only sure way to disable the supplemental restraint system. Failure to take the proper precautions could result
in accidental airbag deployment.
1. Remove the cluster bezel from the instrument panel.
2. Disconnect the wire harness connector from the back of the headlamp switch.
3. Using an ohmmeter, test the resistance or continuity between the terminals of the switch as shown in the Headlamp Switch Tests table.
