Instrument Panel Power Outlet - Jeep XJ Manual

Instrument panel systems

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Table of Contents

8E - 12

INSTRUMENT PANEL SYSTEMS

DIAGNOSIS AND TESTING (Continued)

CIGAR LIGHTER RELAY

The cigar lighter relay (Fig. 3) is located in the

junction block, on the right cowl side inner panel

below the instrument panel in the passenger com-

partment. For complete circuit diagrams, refer to

Horn/Cigar Lighter in the Contents of Group 8W -

Wiring Diagrams.

WARNING: ON VEHICLES EQUIPPED WITH AIR-

BAGS,

REFER

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY

STEERING

WHEEL,

INSTRUMENT PANEL COMPONENT DIAGNOSIS OR

SERVICE. FAILURE TO TAKE THE PROPER PRE-

CAUTIONS COULD RESULT IN ACCIDENTAL AIR-

BAG DEPLOYMENT AND POSSIBLE PERSONAL

INJURY.

(1) Remove the cigar lighter relay from the junc-

tion block. Refer to Cigar Lighter Relay in the

Removal and Installation section of this group for the

procedures.

(2) 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 3. If not OK, replace the faulty relay.

(3) Resistance between terminals 85 and 86 (elec-

tromagnet) should be 75

4. If not OK, replace the faulty relay.

(4) 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, perform the Relay Circuit Test that

follows. If not OK, replace the faulty relay.

Fig. 3 Cigar Lighter Relay

RELAY CIRCUIT TEST

(1) The relay common feed terminal cavity (30) of

the junction block is connected to battery voltage and

should be hot at all times. Check for battery voltage

GROUP

PASSIVE

STEERING

COLUMN,

5 ohms. If OK, go to Step

at the fused B(+) circuit cavity of the accessory relay

wire harness connector. If OK, go to Step 2. If not

OK, repair the fused B(+) circuit to the fuse in the

junction block 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 con-

nected to the common feed terminal (30) in the ener-

gized position. This terminal supplies battery voltage

to the cigar lighter when the relay is energized by

the ignition switch. There should be continuity

between the junction block cavity for relay terminal

87 and the cigar lighter relay output circuit cavity of

the cigar lighter wire harness connector at all times.

If OK, go to Step 4. If not OK, repair the open cigar

lighter relay output circuit to the cigar lighter wire

harness connector as required.

(4) The coil battery terminal (86) is connected to

the electromagnet in the relay. It receives battery

feed to energize the cigar lighter relay when the igni-

tion switch is in the Accessory or On positions. Turn

the ignition switch to the On position. Check for bat-

tery voltage at the fused ignition switch output (acc/

run) circuit cavity for relay terminal 86 in the

junction block. If OK, go to Step 5. If not OK, repair

the open fused ignition switch output (acc/run) circuit

to the ignition switch as required.

(5) The coil ground terminal (85) is connected to

the electromagnet in the relay. The junction block

cavity for this terminal should have continuity to

ground at all times. If not OK, repair the open

ground circuit to ground as required.