Jeep Liberty KJ. Manual — part 96
CONDITION
POSSIBLE CAUSES
CORRECTION
REAR FOG LAMPS DO NOT
EXTINGUISH
1. Inoperative supply circuit.
1. Test and repair shorted rear fog lamp
relay output circuit as required.
2. Inoperative control circuit.
2. Test and repair shorted rear fog lamp
relay control circuit as required.
3. Inoperative relay.
3. Test and replace rear fog lamp relay as
required.
4. Inoperative switch.
4. Test and replace multi-function switch as
required.
5. Inoperative BCM inputs or
outputs.
5. Use a diagnostic scan tool to test the
BCM inputs or outputs. Refer to the
appropriate diagnostic information.
TURN SIGNAL LAMPS
CONDITION
POSSIBLE CAUSES
CORRECTION
ONE TURN SIGNAL LAMP
DOES NOT ILLUMINATE
1. Inoperative or missing bulb.
1. Test and replace turn signal bulb as
required.
2. Inoperative ground circuit.
2. Test and repair open ground circuit as
required.
3. Inoperative supply circuit.
3. Test and repair open right or left turn
signal circuit as required.
ALL RIGHT SIDE AND/OR ALL
LEFT SIDE TURN SIGNAL
LAMPS DO NOT FLASH
1. Inoperative sense circuit.
1. Test and repair open right or left turn
switch sense circuit as required.
2. Inoperative signal circuit.
2. Test and repair open right or left turn
signal circuit as required.
3. Inoperative switch.
3. Test and replace multi-function switch as
required.
4. Inoperative flasher.
4. Replace hazard switch/combination
flasher with a known good unit and check
operation. Replace hazard switch/
combination flasher unit as required.
ALL RIGHT SIDE OR ALL LEFT
SIDE TURN SIGNALS FLASH
TOO RAPIDLY (MORE THAN
100 FLASHES PER MINUTE)
1. Inoperative or missing bulb.
1. Test and replace turn signal bulb as
required.
2. Inoperative ground circuit.
2. Test and repair open ground circuit as
required.
3. Inoperative signal circuit
3. Test and repair open right or left turn
signal circuit as required.
4. Inoperative flasher.
4. Replace hazard switch/combination
flasher with a known good unit and check
operation. Replace hazard switch/
combination flasher unit as required.
8L - 42
LAMPS/LIGHTING - EXTERIOR
KJ
SPECIFICATIONS
LAMPS/LIGHTING - EXTERIOR
BULB APPLICATION TABLE
LAMP
BULB
BACKUP
3157 P27/7W
BRAKE
3157 P27/7W
CENTER HIGH MOUNTED STOP
921/W16W
FRONT FOG (FASCIA MOUNTED)
H3/55W
FRONT FOG (GRILLE MOUNTED)
9145/H10
FRONT PARK/TURN
3157 P27/7W
FRONT POSITION
W5W
FRONT SIDE MARKER
168
HEADLAMP (NORTH AMERICA)
9007QL
HEADLAMP (EXCEPT NORTH AMERICA)
H-4 W0W6
LICENSE (NORTH AMERICA)
168
LICENSE (EXCEPT NORTH AMERICA)
W5W
LIGHT BAR (OFF ROAD)
9006LL
REAR FOG
3157 P27/7W
REAR PARK/TAIL
3157 P27/7W
REAR TURN
3757A PY27/7W
SIDE REPEATER
W5W
TORQUE SPECIFICATIONS
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
CHMSL Mounting Screws
2
-
21
Front Fog Lamp Bezel and
Lens Mounting Screws
(Fascia Mounted)
2
-
17
Front Fog Lamp Adjuster
Mounting Screw (Grille
Mounted)
3
-
30
Front Fog Lamp Bracket
Mounting Screw (Fascia
Mounted)
20
15
-
Hazard Switch Mounting
Screw
2
-
17
Headlamp Unit Mounting
Screws
3
-
30
License Plate Bracket
Mounting Screws (Export)
28
21
-
License Plate Lamp
Mounting Screws
2
-
20
Light Bar Lamp Bracket
Mounting Screws
2
-
17
Light Bar Lamp Cover
Mounting Screws
2
-
17
KJ
LAMPS/LIGHTING - EXTERIOR
8L - 43
DESCRIPTION
N·m
Ft. Lbs.
In. Lbs.
Light Bar Reinforcement
Mounting Nuts
6
-
50
Steering Column Shroud
Mounting Screws
2
-
20
Park Brake Switch
Mounting Screw
3
-
24
Park/Turn Signal Lamp
Mounting Screw
2
-
20
Rear Lamp Unit Mounting
Screws
2
-
20
7-Way Trailer Tow
Connector Mounting
Screws
4
-
35
8L - 44
LAMPS/LIGHTING - EXTERIOR
KJ
BACKUP LAMP SWITCH
DESCRIPTION
Vehicles equipped with a manual transmission (1)
have a normally open, spring-loaded plunger type
backup lamp switch (2). Vehicles with an optional
electronic automatic transmission have a Transmission
Range Sensor (TRS) that is used to perform several
functions, including that of the backup lamp switch.
The TRS is described in further detail elsewhere in
this service information.
The backup lamp switch is located in a threaded hole on the side of the manual transmission housing. The switch
has a threaded body and a hex formation near the plunger end of the switch. An integral connector receptacle at the
end of the switch opposite the plunger connects the switch to the vehicle electrical system through a take out and
connector of the engine wire harness (3). When installed, only the switch connector and the hex formation are vis-
ible on the outside of the transmission housing. The backup lamp switch cannot be adjusted or repaired and, if
inoperative or damaged, the entire switch unit must be replaced.
OPERATION
The backup lamp switch controls the flow of battery voltage to the backup lamp bulbs through an output on the
back-up lamp feed circuit. The switch plunger is mechanically actuated by the gearshift mechanism within the trans-
mission, which will depress the switch plunger and close the switch contacts whenever the reverse gear has been
selected. The switch receives battery voltage through a fuse in the Junction Block (JB) whenever the ignition switch
is in the On position. The backup lamp switch and circuits can be tested using conventional diagnostic tools and
methods. Refer to the appropriate wiring information.
KJ
LAMPS/LIGHTING - EXTERIOR
8L - 45
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