RAM 2500 Truck 2WD L6-5.9L DSL Turbo VIN C (2002)
Cigarette Lighter: Testing and Inspection
Cigar Lighter Outlet Test
For complete circuit diagrams, refer to Cigar Lighter in Wiring Diagrams.
WARNING: REFER TO THE PASSIVE RESTRAINT SECTION OF THE SERVICE MANUAL BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR SERVICE. FAILURE TO
TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT AND POSSIBLE
PERSONAL INJURY.
1. Check the fused ignition switch output (run/accessory) fuse in the junction block. If OK, go to Step 2. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
2. Turn the ignition switch to the ON position. Check for battery voltage at the fused ignition switch output (run/accessory) fuse in the junction block.
If OK, go to Step 3. If not OK, repair the open fused ignition switch output (run/accessory) circuit to the ignition switch as required.
3. Turn the ignition switch to the OFF position. Remove the cigar lighter knob and element from the cigar lighter receptacle. Check for continuity
between the inside circumference of the cigar lighter receptacle and a good ground. There should be continuity. If OK, go to Step 4. If not OK, go
to Step 5.
4. Turn the ignition switch to the ON position. Check for battery voltage at the insulated contact located at the back of the cigar lighter receptacle. If
OK, replace the faulty cigar lighter knob and element. If not OK, go to Step 5.
5. Turn the ignition switch to the OFF position. Disconnect and isolate the battery negative cable. Remove the cigar lighter receptacle from the
instrument panel and disconnect the wire harness connector. Check for continuity between the ground circuit cavity of the cigar lighter wire
harness connector and a good ground. There should be continuity If OK, go to Step 6. If not OK, repair the open ground circuit to ground as
required.
6. Connect the battery negative cable. Turn the ignition switch to the ON position. Check for battery voltage at the fused ignition switch output
(run/accessory) circuit cavity of the cigar lighter wire harness connector. If OK, replace the faulty cigar lighter receptacle. If not OK, repair the
open fused ignition switch output (run/accessory) circuit to the junction block fuse as required.
