Grand Cherokee 4WD V8-5.7L VIN 2 (2007)
Fog/Driving Lamp Switch: Testing and Inspection
REAR FOG LAMP 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. Disconnect and isolate the battery negative cable.
2. Disconnect the instrument panel wire harness connector from the upper instrument panel switch pod.
3. Using an ohmmeter, perform a continuity test at the terminal pins in the switch pod connector receptacle between pins 6 and 8. There should be
momentary continuity each time the switch push button is depressed.
4. If the switch fails the continuity test, replace the ineffective upper switch pod as required.
