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Home >> Jeep >> 1997 >> Wrangler L6-4.0L VIN S >> Repair and Diagnosis >> Power and Ground Distribution >> Auxiliary Power Outlet >> Testing and Inspection
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Auxiliary Power Outlet: Testing and Inspection

WARNING: ON VEHICLES EQUIPPED WITH AIRBAGS, REFER TO AIRBAGS AND SEATBELTS/AIRBAGS BEFORE ATTEMPTING 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.

To test the cigar lighter/power outlet receptacle, first check for continuity to ground at the ground circuit cavity of the cigar lighter/power outlet connector There should be continuity. If OK, check the operation of the accessory relay and relay circuits. If the accessory relay and relay circuits check OK, replace the accessory switch bezel unit, which includes the cigar lighter/power outlet receptacle.

Accessory Relay Test
The accessory relay is located in a connector mounted to the 100-way connector bracket under the driver side of the instrument panel, near the cowl side panel. Remove the relay from its connector to perform the following tests:

1. A relay in the de.energized position should have continuity between terminals 87A and 30, and no continuity between terminals 87 and 30. If OK, go to Step 2. If not OK, replace the faulty relay.
2. Resistance between terminals 85 and 86 (electromagnet) should be 75 ± 5 Ohms. If OK, go to Step 3. If not OK, replace the faulty relay
3. Connect a battery to terminals 85 and 86. There should now be continuity between terminals 30 and 87, and no continuity between terminals 87A and 30. If OK, see the Accessory Relay Circuit Test. If not OK, replace the faulty relay.

Accessory Relay Circuit Test
1. The relay common feed terminal cavity (30) is connected to battery voltage and should be hot at all times. If OK, go to Step 2. If not OK, repair the fused B(+) circuit to the fuse in the Power Distribution Center as required.
2. The relay normally closed terminal (87A) is connected to terminal 30 in the de-energized position, but is not used for this application. Go to Step 3.
3. The relay normally open terminal (87) is connected to the common feed terminal (30) in the energized position. This terminal supplies battery voltage to the cigar lighter/power outlet when the relay is energized by the ignition switch. There should be continuity between the cavity for relay terminal 87 and the accessory relay output circuit cavity of the cigar lighter/power outlet connector at all times. If OK, go to Step 4. If not OK, repair the open circuit to the cigar lighter/power outlet connector as required.
4. The coil battery terminal (86) is connected to the electromagnet in the relay. The connector cavity for this terminal should have continuity to ground at all times. If OK, go to Step 5. If not OK, repair the open circuit to ground as required.
5. The coil ground terminal (85) is connected to the electromagnet in the relay. It receives battery feed to energize the relay when the ignition switch is in the Accessory or On positions. There should be continuity between the cavity for relay terminal 85 and the ignition switch output (ACC/run) cavity of the ignition switch connector at all times.
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