fuse location JEEP LIBERTY 2002 KJ / 1.G Owner's Guide

proper Diagnostic Procedures manual. The
DRBIIItscan tool can provide confirmation
that the PCI data bus is functional, that all of
the electronic modules are sending and receiv-
ing the proper messages on the PCI data bus,
and that the power lock motors are being sent
the proper hard wired outputs by the relays for
them to perform their power lock system func-
tions.
Following are tests that will help to diagnose the
hard wired components and circuits of the power lock
system. However, these tests may not prove conclu-
sive in the diagnosis of this system. In order to
obtain conclusive testing of the power lock system,
the Programmable Communications Interface (PCI)
data bus network and all of the electronic modules
that provide inputs to, or receive outputs from the
power lock system components must be checked.
The Body Control Module (BCM) will set Diagnos-
tic Trouble Codes (DTC) for the power lock system.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
PRELIMINARY DIAGNOSIS
As a preliminary diagnosis for the power lock sys-
tem, note the system operation while you actuate
both the Lock and Unlock functions with the power
lock switches and with the Remote Keyless Entry
(RKE) transmitter. Then, proceed as follows:
²If the entire power lock system fails to function
with either the power lock switches or the RKE
transmitter, check the fused B(+) fuse in the junction
Block (JB).
²If the power lock system functions with both
power lock switches, but not with the RKE transmit-
ter, proceed to diagnosis of the Remote Keyless Entry
(RKE) system. (Refer to 8 - ELECTRICAL/POWER
LOCKS/KEYLESS ENTRY TRANSMITTER - DIAG-
NOSIS AND TESTING) or (Refer to 8 - ELECTRI-
CAL/POWER LOCKS/REMOTE KEYLESS ENTRY
MODULE - DIAGNOSIS AND TESTING).
²If the power lock system functions with the RKE
transmitter, but not with one or both power lock
switches, proceed to diagnosis of the door lock
switches. (Refer to 8 - ELECTRICAL/POWER
LOCKS/POWER LOCK SWITCH - DIAGNOSIS AND
TESTING).
²If the driver side power lock switch operates
only the driver side front door power lock motor, but
all other power lock motors operate with the passen-
ger side power lock switch or the RKE transmitter,
use a DRBIIItscan tool and the appropriate diagnos-tic information to diagnose the Programmable Com-
munications Interface (PCI) data bus.
²If only one power lock motor fails to operate
with both power lock switches and the RKE trans-
mitter, proceed to diagnosis of the power lock motor.
(Refer to 8 - ELECTRICAL/POWER LOCKS/POWER
LOCK MOTOR - DIAGNOSIS AND TESTING).
DOOR LOCK / UNLOCK
SWITCH
DIAGNOSIS AND TESTING - DOOR LOCK/
UNLOCK SWITCH
(1) Remove the switch to be tested (Refer to 8 -
ELECTRICAL/POWER LOCKS/POWER LOCK
SWITCH - REMOVAL).
(2) Using an ohmmeter, Test switch for resistance
values (Fig. 1).
DOOR LOCK SWITCH TEST
SWITCH
POSITIONPINS RESISTANCE
VALUE
UNACTUATED 1 AND 4 5.0K OHM   10
%
LOCK 1 AND 4 1.4K OHM  10
%
UNLOCK 1 AND 4 426 OHM   10
%
(3) If test results are not obtained as shown in the
test table, replace the switch.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
Fig. 1 DOOR LOCK/UNLOCK SWITCH
8N - 4 POWER LOCKSKJ
POWER LOCKS (Continued)

POWER MIRRORS
TABLE OF CONTENTS
page page
POWER MIRRORS
DESCRIPTION.........................11
OPERATION...........................11
DIAGNOSIS AND TESTING - POWER
MIRRORS...........................11
POWER MIRROR SWITCH
DIAGNOSIS AND TESTING - POWER MIRROR
SWITCH............................12REMOVAL.............................13
INSTALLATION.........................13
SIDEVIEW MIRROR
REMOVAL.............................13
POWER MIRRORS
DESCRIPTION
The available power operated sideview mirrors
allow the driver to adjust both outside mirrors elec-
trically from the drivers seat by operating a switch
on the driver side front door trim panel (Fig. 1).
OPERATION
The power mirrors receive ignition current through
a fuse in the junction block, and will only operate
when the ignition switch is in the Run position.
DIAGNOSIS AND TESTING - POWER MIRRORS
WIRING VOLTAGE TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to switch.
(1) Remove the power mirror switch (Refer to 8 -
ELECTRICAL/POWER MIRRORS/POWER MIRROR
SWITCH - REMOVAL).
(2) Disconnect wire connector from back of power
mirror switch.
(3) Switch ignition to the RUN position.
(4) Connect the clip end of a 12 volt test light to
Pin 5 in the harness connector at the mirror switch.
Touch the test light probe to Pin 3.
If the test light illuminates, the wiring circuit
between the battery and switch is OK.
If the lamp does not illuminate, first check fuse 25
in the Junction Block (JB). If fuse 25 is OK, then
check for a broken wire.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
POWER MIRROR MOTOR TEST
If the power mirror switch is receiving proper cur-
rent and ground and mirrors do not operate, proceed
with power mirror motor test. Refer to the appropri-
ate wiring information. The wiring information
includes wiring diagrams, proper wire and connector
repair procedures, details of wire harness routing
and retention, connector pin-out information and
location views for the various wire harness connec-
tors, splices and grounds.
Fig. 1 POWER MIRROR SWITCH
1 - DOOR TRIM PANEL
2 - DOOR LOCK SWITCH
3 - POWER MIRROR SWITCH
KJPOWER MIRRORS 8N - 11

OPERATION
The power seat system receives battery current
through a fuse in the Power Distribution Center
(PDC) and a circuit breaker in the Junction Block,
regardless of the ignition switch position.
When a power seat switch control knob or knobs
are actuated, a battery feed and a ground path are
applied through the switch contacts to the appropri-
ate power seat track adjuster motor. The selected
adjuster motor operates to move the seat track
through its drive unit in the selected direction until
the switch is released, or until the travel limit of the
seat track is reached. When the switch is moved in
the opposite direction, the battery feed and ground
path to the motor are reversed through the switch
contacts. This causes the adjuster motor to run in the
opposite direction.
Refer to the owner's manual in the vehicle glove
box for more information on the features, use and
operation of the power seat system.
DIAGNOSIS AND TESTING - POWER SEATS
Before any testing of the power seat system is
attempted, the battery should be fully-charged and
all wire harness connections and pins cleaned and
tightened to ensure proper continuity and grounds.
Refer to the appropriate wiring information. The wir-
ing information includes wiring diagrams, proper
wire and connector repair procedures, further details
on wire harness routing and retention, as well as
pin-out and joint connector location views for the var-
ious wire harness connectors, splices and grounds.
(1) If all power seats are inoperative, check the
automatic resetting circuit breaker in the Junction
Block. (Refer to 8 - ELECTRICAL/POWER DISTRI-
BUTION/CIRCUIT BREAKER - DIAGNOSIS AND
TESTING).
(2) With the dome lamp on, apply the power seat
switch in the direction of the failure.
(3) If the dome lamp dims, the seat or the power
seat track may be jammed. Check under and behind
the seat for binding or obstructions.
(4) If the dome lamp does not dim, proceed with
testing of the individual power seat system compo-
nents and circuits.
SEAT TRACK
DESCRIPTION
The six-way power seat option includes a power
seat track assembly located under each front seat
(Fig. 2). The power seat track assembly replaces the
standard manually operated seat tracks. The lower
half of the power seat track is secured at the frontwith two bolts to the floor panel seat cross member,
and at the rear with one bolt and one nut to the floor
panel. Four bolts secure the bottom of the seat cush-
ion frame to the upper half of the power seat track
unit.
The power seat track assembly cannot be repaired,
and is serviced only as a complete assembly. If any
component in this assembly is faulty or damaged, the
entire power seat track must be replaced.
OPERATION
The power seat track unit includes three reversible
electric motors that are secured to the upper half of
the track unit. Each motor moves the seat adjuster
through a combination of worm-drive gearboxes and
screw-type drive units. Each of the three driver side
power seat track motors also has a position potenti-
ometer integral to the motor assembly, which elec-
tronically monitors the motor position.
The front and rear of the seat are operated by two
separate vertical adjustment motors. These motors
can be operated independently of each other, tilting
the entire seat assembly forward or rearward; or,
they can be operated in unison by selecting the
proper power seat switch functions, which will raise
or lower the entire seat assembly. The third motor is
the horizontal adjustment motor, which moves the
seat track in the forward and rearward directions.
Fig. 2 Power Seat Track - Typical
1 - POWER SEAT ADJUSTER AND MOTORS
2 - SEAT CUSHION FRAME
3 - POWER SEAT TRACK ASSEMBLY
KJPOWER SEATS 8N - 15
POWER SEATS (Continued)

POWER WINDOWS
TABLE OF CONTENTS
page page
POWER WINDOWS
DESCRIPTION.........................21
OPERATION...........................21
DIAGNOSIS AND TESTING - POWER
WINDOWS...........................21
WINDOW MOTOR
REMOVAL.............................22WINDOW SWITCH
DIAGNOSIS AND TESTING - WINDOW
SWITCH............................22
REMOVAL.............................23
INSTALLATION.........................23
POWER WINDOWS
DESCRIPTION
The power window system allows each of the door
windows to be raised and lowered electrically by
actuating a switch on the center console. A master
switch on the front of the center console allows the
driver to raise or lower each of the passenger door
windows and to lock out the individual switches on
the rear of the center console from operation. The
power window system receives battery feed through
fuse 13 in the Power Distribution Center (PDC), only
when the ignition switch is in the RUN or ACCES-
SORY position.
OPERATION
WINDOW SWITCH
The power window switches control the battery
and ground feeds to the power window motors. Both
of the rear door power window switches receive their
battery and ground feeds through the circuitry of the
front window switch. When the power window lock-
out switch is in the Lock position, the battery feed
for the rear door window switches is interrupted.
WINDOW MOTOR
Front door window lift motors use permanent type
magnets. The B+ and ground applied at the motor
terminal pins will cause the motor to rotate in one
direction. Reversing current through the motor ter-
minals will cause the motor to rotate in the opposite
direction.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
DIAGNOSIS AND TESTING - POWER
WINDOWS
WIRING VOLTAGE TEST
The following wiring test determines whether or
not voltage is continuous through the body harness
to the front switch.
(1) Remove the power window switch and bezel
(Refer to 8 - ELECTRICAL/POWER WINDOWS/
POWER WINDOW SWITCH - REMOVAL).
(2) Disconnect wire connector from back of power
window switch.
(3) Switch ignition to the ON position.
(4) Connect the clip end of a 12 volt test light to
Pin 14 of the window switch harness connector.
Touch the test light probe to Pin 10.
²If the test light illuminates, the wiring circuit
between the battery and switch is OK.
²If the lamp does not illuminate, first check fuse
13 in the Power Distribution Center (PDC). If fuse 13
is OK, then check for a broken wire.
Refer to the appropriate wiring information. The
wiring information includes wiring diagrams, proper
wire and connector repair procedures, details of wire
harness routing and retention, connector pin-out
information and location views for the various wire
harness connectors, splices and grounds.
POWER WINDOW MOTOR TEST
If the power window motor is receiving proper cur-
rent and ground and does not operate, proceed with
motor test. Refer to the appropriate wiring informa-
tion. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
details of wire harness routing and retention, connec-
tor pin-out information and location views for the
various wire harness connectors, splices and grounds.
(1) Remove front door trim panel as necessary to
gain access to power window motor wire connector
KJPOWER WINDOWS 8N - 21

VACUUM RESERVOIR
DESCRIPTION
The vacuum reservoir is a plastic storage tank con-
nected to an engine vacuum source by vacuum lines.
OPERATION
The vacuum reservoir is used to supply the vac-
uum needed to maintain proper speed control opera-
tion when engine vacuum drops, such as in climbing
a grade while driving. A one-way check valve is used
in the vacuum line between the reservoir and the
vacuum source. This check valve is used to trap
engine vacuum in the reservoir. On certain vehicle
applications, this reservoir is shared with the heat-
ing/air-conditioning system. The vacuum reservoir
cannot be repaired and must be replaced if faulty.
DIAGNOSIS AND TESTING - VACUUM
RESERVOIR
(1) Disconnect vacuum hose at speed control servo
and install a vacuum gauge into the disconnected
hose.
(2) Start engine and observe gauge at idle. Vac-
uum gauge should read at least ten inches of mer-
cury.
(3) If vacuum is less than ten inches of mercury,
determine source of leak. Check vacuum line to
engine for leaks. Also check actual engine intake
manifold vacuum. If manifold vacuum does not meet
this requirement, check for poor engine performance
and repair as necessary.
(4) If vacuum line to engine is not leaking, check
for leak at vacuum reservoir. To locate and gain
access to reservoir, refer to Vacuum Reservoir Remov-
al/Installation in this group. Disconnect vacuum line
at reservoir and connect a hand-operated vacuum
pump to reservoir fitting. Apply vacuum. Reservoir
vacuum should not bleed off. If vacuum is being lost,
replace reservoir.
(5) Verify operation of one-way check valve and
check it for leaks.Certain models may be
equipped with 2 check-valves.
(a) Locate one-way check valve. The valve is
located in vacuum line between vacuum reservoir
and engine vacuum source. Disconnect vacuum
hoses (lines) at each end of valve.
(b) Connect a hand-operated vacuum pump to
reservoir end of check valve. Apply vacuum. Vac-
uum should not bleed off. If vacuum is being lost,
replace one-way check valve.
(c) Connect a hand-operated vacuum pump to
vacuum source end of check valve. Apply vacuum.
Vacuum should flow through valve. If vacuum is
not flowing, replace one-way check valve. Seal thefitting at opposite end of valve with a finger and
apply vacuum. If vacuum will not hold, diaphragm
within check valve has ruptured. Replace valve.
REMOVAL
The vacuum reservoir is located behind, and at the
outer end of the instrument panel (Fig. 8). To gain
access for testing or removal, remove glovebox assem-
bly. Also remove fuse box access cover panel at end of
instrument panel. On vehicles equipped with LHD
(Left Hand Drive), this fuse access panel is located at
right end of instrument panel. On vehicles equipped
with RHD (Right Hand Drive), this access panel is
located at left end of instrument panel.
(1) Remove glovebox assembly. Access to reservoir
vacuum line and fitting can now be made.
(2) Remove vacuum line at reservoir.
(3) Remove fuse access cover panel at end of
instrument panel.
(4) Through fuse access opening, remove 2 horizon-
tally mounted screws (Fig. 8).
(5) From bottom of instrument panel, remove 1
vertically mounted screw (Fig. 9).
(6) Remove reservoir from instrument panel.
Fig. 8 VACUUM RESERVOIR LOCATION
1 - VACUUM RESERVOIR
2 - HORIZONTAL MOUNTING SCREWS
3 - OUTBOARD END OF I.P.
KJSPEED CONTROL 8P - 7

SENTRY KEY IMMOBILIZER SYSTEM
SENTRY KEY IMMOBILIZER SYSTEM DIAGNOSIS
CONDITION POSSIBLE CAUSES CORRECTION
SKIS INDICATOR FAILS TO
LIGHT DURING BULB TEST1. SKIS indicator faulty. 1. Test and replace the instrument cluster as
required.
2. Fuse faulty. 2. Test and replace the SKIM fused B(+) and
fused ignition switch output (run-start) fuses in the
Junction Block (JB) as required.
3. Ground circuit faulty. 3. Test and repair the SKIM ground circuit as
required.
4. Fused B(+) circuit faulty. 4. Test and repair the SKIM fused B(+) circuit as
required.
5. Fused ignition switch
output circuit faulty.5. Test and repair the SKIM fused ignition switch
output (run-start) circuit as required.
SKIS INDICATOR FLASHES
WHEN IGNITION SWITCH IS
TURNED TO9ON9
POSITION1. Invalid key in ignition
switch lock cylinder.1. Replace the key with a known valid key.
2. Key-related fault. 2. Use a DRBIIITscan tool to diagnose the
key-related fault. Refer to the appropriate
diagnostic information.
SKIS INDICATOR LIGHTS
SOLID FOLLOWING BULB
TEST1. SKIS system malfunction/
fault detected.1. Use a DRBIIITscan tool to diagnose the SKIS.
Refer to the appropriate diagnostic information.
2. SKIS system inoperative. 2. Use a DRBIIITscan tool to diagnose the SKIS.
Refer to the appropriate diagnostic information.
SKIS INDICATOR FAILS TO LIGHT DURING BULB TEST
If the Sentry Key Immobilizer System (SKIS) indi-
cator in the instrument cluster fails to illuminate for
about three seconds after the ignition switch is
turned to the On position (bulb test), perform the
instrument cluster actuator test. (Refer to 8 - ELEC-
TRICAL/INSTRUMENT CLUSTER - DIAGNOSIS
AND TESTING). If the SKIS indicator still fails to
light during the bulb test, a wiring problem resulting
in the loss of battery current or ground to the Sentry
Key Immobilizer Module (SKIM) should be sus-
pected, and the following procedure should be used
for diagnosis. Refer to the appropriate wiring infor-
mation. The wiring information includes wiring dia-
grams, proper wire and connector repair procedures,
details of wire harness routing and retention, connec-
tor pin-out information and location views for the
various wire harness connectors, splices and grounds.
NOTE: The following tests may not prove conclu-
sive in the diagnosis of this system. The most reli-
able, efficient, and accurate means to diagnose the
Sentry Key Immobilizer System requires the use of
a DRBIIITscan tool. Refer to the appropriate diag-
nostic information.(1) Check the fused B(+) fuse (Fuse 33 - 10
ampere) in the Junction Block (JB). If OK, go to Step
2. If not OK, repair the shorted circuit or component
as required and replace the faulty fuse.
(2) Check for battery voltage at the fused B(+) fuse
(Fuse 33 - 10 ampere) in the JB. If OK, go to Step 3.
If not OK, repair the open B(+) circuit between the
JB and the battery as required.
(3) Check the fused ignition switch output (run-
start) fuse (Fuse 15 - 10 ampere) in the JB. If OK, go
to Step 4. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
(4) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-start) fuse (Fuse 15 - 10 ampere) in the
JB. If OK, go to Step 5. If not OK, repair the open
fused ignition switch output (run-start) circuit
between the JB and the ignition switch as required.
(5) Disconnect and isolate the battery negative
cable. Disconnect the instrument panel wire harness
connector for the Sentry Key Immobilizer Module
(SKIM) from the SKIM connector receptacle. Check
for continuity between each of the two ground circuit
cavities of the instrument panel wire harness connec-
tor for the SKIM and a good ground. There should be
KJVEHICLE THEFT SECURITY 8Q - 7
VEHICLE THEFT SECURITY (Continued)

mation includes wiring diagrams, proper wire and
connector repair procedures, details of wire harness
routing and retention, connector pin-out information
and location views for the various wire harness con-
nectors, splices and grounds.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE SUPPLEMENTAL RESTRAINT
SYSTEM BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, DRIVER AIRBAG,
PASSENGER AIRBAG, SEAT BELT TENSIONER,
SIDE CURTAIN AIRBAG, OR INSTRUMENT PANEL
COMPONENT DIAGNOSIS OR SERVICE. DISCON-
NECT 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
AND POSSIBLE PERSONAL INJURY.
(1) Check that the interior lighting switch on the
left (lighting) control stalk of the multi-function
switch is not in the dome lamp disable position. With
all four doors and the tailgate closed, open the rear
flip-up glass. The interior lamps should light. Close
the rear flip-up glass. Note whether the interior
lamps remain lighted. They should turn off after
about thirty seconds. If OK, go to Step 2. If not OK,
go to Step 9.
(2) Check the fused B(+) fuse (Fuse 17 - 15
ampere) in the Junction Block (JB). If OK, go to Step
3. If not OK, repair the shorted circuit or component
as required and replace the faulty fuse.
(3) Check for battery voltage at the fused B(+) fuse
(Fuse 17 - 15 ampere) in the JB. If OK, go to Step 4.
If not OK, repair the open fused B(+) circuit between
the JB and the Power Distribution Center (PDC) as
required.
(4) Check the fused ignition switch output (run-
acc) fuse (Fuse 22 - 10 ampere) in the JB. If OK, go
to Step 5. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
(5) Turn the ignition switch to the On position.
Check for battery voltage at the fused ignition switch
output (run-acc) fuse (Fuse 22 - 10 ampere) in the
JB. If OK, turn the ignition switch to the Off position
and go to Step 6. If not OK, repair the open fused
ignition switch output (run-acc) circuit between the
JB and the ignition switch as required.
(6) Disconnect and isolate the battery negative
cable. Disconnect the instrument panel wire harness
connector for the multi-function switch (Connector
C-2) from the switch connector receptacle. Reconnect
the battery negative cable. Turn the ignition switchto the On position. Check for battery voltage at the
fused ignition switch output (run-acc) circuit cavity of
the instrument panel wire harness connector for the
multi-function switch (Connector C-2). If OK, go to
Step 7. If not OK, repair the open fused ignition
switch output (run-acc) circuit between the multi-
function switch and the JB as required.
(7) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Test the multi-function switch. (Refer to 8 - ELEC-
TRICAL/LAMPS/LIGHTING - EXTERIOR/MULTI-
FUNCTION SWITCH - DIAGNOSIS AND
TESTING). If the multi-function switch tests OK,
reconnect the instrument panel wire harness connec-
tors for the multi-function switch to the switch con-
nector receptacles and go to Step 8. If the multi-
function switch does not test OK, replace the faulty
switch.
(8) Remove the tailgate inner trim panel. Discon-
nect the tailgate wire harness connector for the rear
wiper module from the module connector receptacle.
Check for continuity between the ground circuit cav-
ity of the tailgate wire harness connector for the rear
wiper module and a good ground. There should be
continuity. If OK, go to Step 9. If not OK, repair the
open ground circuit to ground (G312) as required.
(9) Check for continuity between the flip-up glass
ajar switch sense circuit cavity of the tailgate wire
harness connector for the rear wiper module and a
good ground. There should be continuity with the
rear flip-up glass open, and no continuity with the
rear flip-up glass closed. If OK, go to Step 10. If not
OK, repair the open flip-up glass ajar circuit between
the rear wiper module and the flip-up glass ajar
switch as required.
(10) Reconnect the battery negative cable. Check
for battery voltage at the fused B(+) circuit cavity of
the tailgate wire harness connector for the rear wiper
module. If OK, go to Step 11. If not OK, repair the
open fused B(+) circuit between the rear wiper mod-
ule and the JB as required.
(11) Turn the ignition switch to the On position.
Turn the control ring on the right (wiper) control
stalk of the multi-function switch to the Delay posi-
tion. Check for battery voltage at the rear wiper
intermittent driver circuit cavity of the tailgate wire
harness connector for the rear wiper module. If OK,
go to Step 12. If not OK, repair the open rear wiper
intermittent driver circuit between the rear wiper
module and the multi-function switch as required.
(12) Turn the control ring on the right (wiper) con-
trol stalk of the multi-function switch to the On posi-
tion. Check for battery voltage at the rear wiper on
driver circuit cavity of the tailgate wire harness con-
nector for the rear wiper module. If OK, replace the
faulty rear wiper module. If not OK, repair the open
KJREAR WIPERS/WASHERS 8R - 31
REAR WIPERS/WASHERS (Continued)

(1) Remove protective cap at fuel rail test port.
Connect the 0±414 kPa (0-60 psi) fuel pressure gauge
(from gauge set 5069) to test port pressure fitting on
fuel rail (Fig. 20).The DRBtIII Scan Tool along
with the PEP module, the 500 psi pressure
transducer, and the transducer-to-test port
adapter may also be used in place of the fuel
pressure gauge.
(2) Start and warm engine and note pressure
gauge reading. Fuel pressure should be 339 kPa   34
kPa (49.2 psi   5 psi) at idle.
(3) If engine runs, but pressure is below 44.2 psi,
check for a kinked fuel supply line somewhere
between fuel rail and fuel pump module. If line is not
kinked, but specifications for either the Fuel Pump
Capacity, Fuel Pump Amperage or Fuel Pressure
Leak Down Tests were not met, replace lower section
of fuel pump module. Refer to Fuel Pump Module
Removal/Installation.
(4) If operating pressure is above 54.2 psi, electric
fuel pump is OK, but fuel pressure regulator is defec-
tive. Replace lower section of fuel pump module.
Refer to Fuel Pump Module Removal/Installation.
(5) Install protective cap to fuel rail test port.
DIAGNOSIS AND TESTING - FUEL PUMP
AMPERAGE TEST
This amperage (current draw) test is to be done in
conjunction with the Fuel Pump Pressure Test, Fuel
Pump Capacity Test and Fuel Pressure Leak Down
Test. Before performing the amperage test, be sure
the temperature of the fuel tank is above 50É F (10É
C).The DRBtScan Tool along with the DRB Low Cur-
rent Shunt (LCS) adapter (Fig. 21) and its test leads
will be used to check fuel pump amperage specifica-
tions.
(1) Be sure fuel tank contains fuel before starting
test. If tank is empty or near empty, amperage read-
ings will be incorrect.
(2) Obtain LCS adapter.
(3) Plug cable from LCS adapter into DRB scan
tool at SET 1 receptacle.
(4) Plug DRB into vehicle 16±way connector (data
link connector).
(5) Connect (-) and (+) test cable leads into LCS
adapter receptacles. Use10 amp (10A +)receptacle
and common (-) receptacles.
(6) Gain access to MAIN MENU on DRB screen.
(7) Press DVOM button on DRB.
(8) Using left/right arrow keys, highlight CHAN-
NEL 1 function on DRB screen.
(9) Press ENTER three times.
(10) Using up/down arrow keys, highlight RANGE
on DRB screen (screen will default to 2 amp scale).
(11) Press ENTER to change 2 amp scale to 10
amp scale.This step must be done to prevent
damage to DRB scan tool or LCS adapter
(blown fuse).
(12) Remove cover from Power Distribution Center
(PDC).
(13) Remove fuel pump relay from PDC. Refer to
label on PDC cover for relay location.
Fig. 20 FUEL PRESSURE TEST GAUGE (TYPICAL
GAUGE INSTALLATION AT TEST PORT)
1 - SERVICE (TEST) PORT
2 - FUEL PRESSURE TEST GAUGE
3 - FUEL RAIL
Fig. 21 LOW CURRENT SHUNT
1 - LOW CURRENT SHUNT ADAPTER
2 - PLUG TO DRB
3 - TEST LEAD RECEPTACLES
14 - 16 FUEL DELIVERYKJ
FUEL PUMP (Continued)

(2) Resistance between terminals 85 and 86 (elec-
tromagnet) should be 67.5 to 82.5 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 Relay Circuit Test. If not OK,
replace the faulty relay.
RELAY CIRCUIT TEST
For circuit descriptions and diagrams, (Refer to
Appropriate Wiring Information).
(1) The relay common feed terminal cavity (30) is
connected to fused battery feed. There should be bat-
tery voltage at the cavity for relay terminal 30 at all
times. If OK, go to Step 2. If not OK, repair the open
circuit to the fuse in the PDC as required.
(2) The relay normally closed terminal (87A) is not
used in this application. Go to Step 3.
(3) The relay normally open terminal cavity (87) is
connected to the compressor clutch coil. There should
be continuity between this cavity and the A/C com-
pressor clutch relay output circuit cavity of the com-
pressor clutch coil wire harness connector. If OK, go
to Step 4. If not OK, repair the open circuit as
required.
(4) The relay coil battery terminal (86) is con-
nected to the fused ignition switch output (run/start)circuit. There should be battery voltage at the cavity
for relay terminal 86 with the ignition switch in the
On position. If OK, go to Step 5. If not OK, repair the
open circuit to the fuse in the junction block as
required.
(5) The coil ground terminal cavity (85) is switched
to ground through the Powertrain Control Module
(PCM). There should be continuity between this cav-
ity and the A/C compressor clutch relay control cir-
cuit cavity of the PCM wire harness connector C
(gray) at all times. If not OK, repair the open circuit
as required.
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove the cover from the Power Distribution
Center (PDC).
(3) Refer to the label on the PDC for compressor
clutch relay identification and location.
(4) Unplug the compressor clutch relay from the
PDC.
INSTALLATION
(1) Install the compressor clutch relay by aligning
the relay terminals with the cavities in the PDC and
pushing the relay firmly into place.
(2) Install the PDC cover.
(3) Connect the battery negative cable.
(4) Test the relay operation.
A/C HEATER CONTROL
DESCRIPTION
Both the heater-only and A/C heater systems use a
combination of mechanical, electrical, and vacuum
controls. These controls provide the vehicle operator
with a number of setting options to help control the
climate and comfort within the vehicle. Refer to the
owner's manual in the vehicle glove box for more
information on the features, use, and suggested oper-
ation of these controls.
The heater-only or A/C heater control panel is
located to the right of the instrument cluster on the
instrument panel. The control panel contains a rota-
ry-type temperature control knob, a rotary-type mode
control switch knob, and a rotary-type blower motor
speed switch knob. The control also has a push but-
ton to activate the rear window defogger.
The heater-only or A/C heater control panel cannot
be repaired. If faulty or damaged, the entire unit
must be replaced. The illumination lamps are avail-
able for service replacement.
Fig. 10 COMPRESSOR CLUTCH RELAY
30 - COMMON FEED
85 - COIL GROUND
86 - COIL BATTERY
87 - NORMALLY OPEN
87A - NORMALLY CLOSED
24 - 16 CONTROLSKJ
A/C COMPRESSOR CLUTCH RELAY (Continued)

LATCH - ACCESS PANEL - REMOVAL....23-139
LATCH - INSTALLATION . . 23-120,23-124,23-131,
23-137
LATCH - INSTALLATION, FLIP-UP GLASS . 23-136
LATCH - INSTALLATION, FLOOR
CONSOLE LID......................23-158
LATCH - INSTALLATION, GLOVE BOX....23-148
LATCH / LOCK - INSTALLATION,
FOLDING REAR SEAT BACK...........23-170
LATCH / LOCK - REMOVAL, FOLDING
REAR SEAT BACK...................23-170
LATCH - REMOVAL......23-120,23-124,23-131,
23-137
LATCH - REMOVAL, FLIP-UP GLASS.....23-136
LATCH - REMOVAL, FLOOR CONSOLE
LID...............................23-158
LATCH - REMOVAL, GLOVE BOX........23-148
LATCH RELEASE CABLE - INSTALLATION . 23-120
LATCH RELEASE CABLE - REMOVAL....23-120
LATCH RELEASE HANDLE -
INSTALLATION......................23-120
LATCH RELEASE HANDLE - REMOVAL . . . 23-120
LATCH STRIKER - INSTALLATION......23-124,
23-132,23-137
LATCH STRIKER - INSTALLATION, GLOVE
BOX ..............................23-149
LATCH STRIKER - INSTALLATION, REAR
SEAT BACK........................23-171
LATCH STRIKER - REMOVAL....23-124,23-132,
23-137
LATCH STRIKER - REMOVAL, GLOVE
BOX ..............................23-148
LATCH STRIKER - REMOVAL, REAR
SEAT BACK........................23-170
LEAK - DIAGNOSIS AND TESTING,
CONVERTER HOUSING FLUID...........21-80
LEAK - DIAGNOSIS AND TESTING,
ENGINE OIL..........................9-60
LEAK DETECTION PUMP - DESCRIPTION . . 25-27
LEAK DETECTION PUMP - INSTALLATION . 25-28
LEAK DETECTION PUMP - OPERATION....25-28
LEAK DETECTION PUMP - REMOVAL.....25-28
LEAK DOWN TEST - DIAGNOSIS AND
TESTING, FUEL PRESSURE..............14-3
LEAKAGE - DIAGNOSIS AND TESTING,
CYLINDER COMBUSTION PRESSURE.......9-8
LEAKS - DIAGNOSIS AND TESTING,
COOLING SYSTEM.....................7-4
LEAKS - DIAGNOSIS AND TESTING,
INTAKE MANIFOLD....................9-68
LEAKS - DIAGNOSIS AND TESTING,
REAR SEAL AREA.....................9-61
LEAKS - DIAGNOSIS AND TESTING,
WATER .............................23-2
LEAKS - STANDARD PROCEDURE,
REPAIRING..........................22-8
LEARN - STANDARD PROCEDURE, TCM
QUICK.............................8E-21
LEFT POWER SEAT SWITCH -
DESCRIPTION.......................8N-16
LEFT POWER SEAT SWITCH -
DIAGNOSIS AND TESTING.............8N-17
LEFT POWER SEAT SWITCH -
INSTALLATION......................8N-18
LEFT POWER SEAT SWITCH -
OPERATION
.........................8N-17
LEFT POWER SEAT SWITCH - REMOVAL
. . 8N-18
LEFT SIDE - INSTALLATION
.........2-12,2-15
LEFT SIDE - REMOVAL
.............2-11,2-15
LEVEL - DIAGNOSIS AND TESTING,
EFFECTS OF INCORRECT FLUID
........21-125
LEVEL - STANDARD PROCEDURE,
REFRIGERANT OIL
...................24-54
LEVEL - STANDARD PROCEDURES,
MASTER CYLINDER FLUID
..............5-26
LEVEL CHECK - STANDARD
PROCEDURE, FLUID
.................21-126
LEVEL SENDING UNIT - DIAGNOSIS AND
TESTING, FUEL
.......................14-9
LEVEL SENDING UNIT / SENSOR -
DESCRIPTION, FUEL
...................14-9
LEVEL SENDING UNIT / SENSOR -
INSTALLATION, FUEL
.................14-10
LEVEL SENDING UNIT / SENSOR -
OPERATION, FUEL
.....................14-9
LEVEL SENDING UNIT / SENSOR -
REMOVAL, FUEL
......................14-9LEVEL SWITCH - DESCRIPTION,
WASHER FLUID.....................8R-17
LEVEL SWITCH - INSTALLATION,
WASHER FLUID.....................8R-18
LEVEL SWITCH - OPERATION, WASHER
FLUID.............................8R-17
LEVEL SWITCH - REMOVAL, WASHER
FLUID.............................8R-17
LEVELING MOTOR - DESCRIPTION,
HEADLAMP.........................8L-35
LEVELING MOTOR - INSTALLATION,
HEADLAMP.........................8L-36
LEVELING MOTOR - OPERATION,
HEADLAMP.........................8L-36
LEVELING MOTOR - REMOVAL,
HEADLAMP.........................8L-36
LEVELING SWITCH - DESCRIPTION,
HEADLAMP.........................8L-37
LEVELING SWITCH - DIAGNOSIS AND
TESTING, HEADLAMP.................8L-37
LEVELING SWITCH - INSTALLATION,
HEADLAMP.........................8L-38
LEVELING SWITCH - OPERATION,
HEADLAMP.........................8L-37
LEVELING SWITCH - REMOVAL,
HEADLAMP.........................8L-38
LEVER - INSTALLATION................5-31
LEVER - INSTALLATION, SHIFT . . . 21-214,21-249
LEVER - REMOVAL....................5-31
LEVER - REMOVAL, SHIFT......21-213,21-248
LHD - INSTALLATION...............8W-97-6
LHD - REMOVAL....................8W-97-5
LICENSE PLATE LAMP BULB -
INSTALLATION.......................8L-45
LICENSE PLATE LAMP BULB - REMOVAL . . 8L-44
LICENSE PLATE LAMP UNIT -
INSTALLATION.......................8L-46
LICENSE PLATE LAMP UNIT - REMOVAL . . 8L-45
LID LATCH - INSTALLATION, FLOOR
CONSOLE..........................23-158
LID LATCH - REMOVAL, FLOOR
CONSOLE..........................23-158
LIGHTER OUTLET - DESCRIPTION,
CIGAR...........................8W-97-2
LIGHTER OUTLET - DIAGNOSIS AND
TESTING, CIGAR...................8W-97-2
LIGHTER OUTLET - OPERATION, CIGAR . 8W-97-2
LIMITS - DESCRIPTION, HIGH AND LOW . . 25-20
LINE - DESCRIPTION, REFRIGERANT.....24-38
LINE - INSTALLATION, A/C DISCHARGE . . . 24-47
LINE - INSTALLATION, A/C LIQUID.......24-47
LINE - INSTALLATION, A/C SUCTION.....24-49
LINE - REMOVAL, A/C DISCHARGE.......24-46
LINE - REMOVAL, A/C LIQUID...........24-47
LINE - REMOVAL, A/C SUCTION.........24-48
LINE AND HOSES - DIAGNOSIS AND
TESTING, BRAKE.......................5-8
LINE PRESSURE (LP) SENSOR -
DESCRIPTION......................21-144
LINE PRESSURE (LP) SENSOR -
INSTALLATION......................21-144
LINE PRESSURE (LP) SENSOR -
OPERATION........................21-144
LINE PRESSURE (LP) SENSOR -
REMOVAL.........................21-144
LINES - DESCRIPTION, BRAKE............5-8
LINES - DESCRIPTION, FUEL...........14-10
LINES - DESCRIPTION, VACUUM........25-33
LINK - INSTALLATION, STABILIZER.......2-14
LINK - REMOVAL, STABILIZER...........2-14
LINK CONNECTOR - DESCRIPTION, DATA . 8E-10
LINK CONNECTOR - OPERATION, DATA . . . 8E-10
LINKAGE - INSTALLATION................6-9
LINKAGE - REMOVAL...................6-8
LINKAGE - STANDARD PROCEDURE,
STEERING..........................19-16
LIQUID LINE - INSTALLATION, A/C.......24-47
LIQUID LINE - REMOVAL, A/C...........24-47
LOAD TEST - STANDARD PROCEDURE....8F-12
LOAD VALUE - DESCRIPTION
...........25-20
LOADS - STANDARD PROCEDURE,
TESTING FOR A SHORT TO GROUND
ON FUSES POWERING SEVERAL
......8W-01-9
LOCATION - DESCRIPTION, CONNECTOR/
GROUND/SPLICE
...................8W-91-1
LOCATIONS - DESCRIPTION, FLUID
FILL/CHECK
...........................0-4
LOCATIONS - SPECIFICATIONS, SEALER
. . 23-87LOCATIONS - SPECIFICATIONS, WELD
AND STRUCTURAL ADHESIVE...........23-9
LOCK - INSTALLATION, FOLDING REAR
SEAT BACK LATCH..................23-170
LOCK - REMOVAL, FOLDING REAR SEAT
BACK LATCH.......................23-170
LOCK / UNLOCK SWITCH -
INSTALLATION, DOOR.................8N-5
LOCK / UNLOCK SWITCH - REMOVAL,
DOOR..............................8N-4
LOCK CYLINDER - INSTALLATION......23-125,
23-138
LOCK CYLINDER - INSTALLATION.......19-11
LOCK CYLINDER - REMOVAL....23-125,23-137
LOCK CYLINDER - REMOVAL...........19-10
LOCK MOTOR - DESCRIPTION, DOOR.....8N-5
LOCK MOTOR - DIAGNOSIS AND
TESTING, DOOR......................8N-5
LOCK MOTOR - OPERATION, DOOR.......8N-5
LOCK OUT - ADJUSTMENT..............5-30
LOCK RELAY - DESCRIPTION, DOOR......8N-6
LOCK RELAY - DIAGNOSIS AND
TESTING, DOOR......................8N-6
LOCK RELAY - INSTALLATION, DOOR.....8N-7
LOCK RELAY - OPERATION, DOOR........8N-6
LOCK RELAY - REMOVAL, DOOR.........8N-6
LOCK SWITCH - DESCRIPTION, DOOR
CYLINDER...........................8Q-9
LOCK SWITCH - DESCRIPTION,
TAILGATE CYLINDER...................8N-9
LOCK SWITCH - DIAGNOSIS AND
TESTING, DOOR CYLINDER............8Q-10
LOCK SWITCH - DIAGNOSIS AND
TESTING, TAILGATE CYLINDER..........8N-9
LOCK SWITCH - INSTALLATION, DOOR
CYLINDER..........................8Q-10
LOCK SWITCH - INSTALLATION,
TAILGATE CYLINDER..................8N-10
LOCK SWITCH - OPERATION, DOOR
CYLINDER..........................8Q-10
LOCK SWITCH - OPERATION, TAILGATE
CYLINDER...........................8N-9
LOCK SWITCH - REMOVAL, DOOR
CYLINDER..........................8Q-10
LOCK SWITCH - REMOVAL, TAILGATE
CYLINDER..........................8N-10
LOCKS - DESCRIPTION, POWER.........8N-1
LOCKS - DIAGNOSIS AND TESTING,
POWER.............................8N-3
LOCKS - OPERATION, POWER...........8N-3
LOCK/UNLOCK SWITCH - DIAGNOSIS
AND TESTING, DOOR..................8N-4
LOOP ADJUSTER - INSTALLATION, SEAT
BELT TURNING......................8O-38
LOOP ADJUSTER - REMOVAL, SEAT
BELT TURNING......................8O-37
LOW BEAM RELAY - DESCRIPTION,
HEADLAMP.........................8L-39
LOW BEAM RELAY - DIAGNOSIS AND
TESTING, HEADLAMP.................8L-40
LOW BEAM RELAY - INSTALLATION,
HEADLAMP.........................8L-41
LOW BEAM RELAY - OPERATION,
HEADLAMP.........................8L-39
LOW BEAM RELAY - REMOVAL,
HEADLAMP
.........................8L-40
LOW FUEL INDICATOR - DESCRIPTION
. . . 8J-22
LOW FUEL INDICATOR - OPERATION
.....8J-22
LOW INDICATOR - DESCRIPTION,
COOLANT
...........................8J-15
LOW INDICATOR - OPERATION,
COOLANT
...........................8J-16
LOW LIMITS - DESCRIPTION, HIGH
......25-20
LOW MODE INDICATOR - DESCRIPTION,
FOUR
..............................8J-29
LOW MODE INDICATOR - OPERATION,
FOUR
..............................8J-30
LOW OIL PRESSURE INDICATOR -
DESCRIPTION
.......................8J-23
LOW OIL PRESSURE INDICATOR -
OPERATION
.........................8J-23
LOW PRESSURE SWITCH -
DESCRIPTION, A/C
...................24-18
LOW PRESSURE SWITCH - DIAGNOSIS
AND TESTING, A/C
...................24-19
LOW PRESSURE SWITCH -
INSTALLATION, A/C
...................24-19
KJINDEX 15
Description Group-Page Description Group-Page Description Group-Page