2002 JEEP LIBERTY ad blue

C305 - BLUE (LEFT REAR DOOR SIDE)
CAV CIRCUIT
12 G74 20TN/WT
13 -
14 X93 18TN/VT (PREMIUM)
14 X51 18DB/WT (BASE)
C306 - WHITE (MAIN BODY SIDE)
CAV CIRCUIT
1 A6 16RD/BK (MIDLINE/HIGHLINE)
2-
3 F85 16VT/WT (MIDLINE/HIGHLINE)
4 F70 18PK/BK
5 F41 16PK/VT
6 A99 14RD/VT (MIDLINE/HIGHLINE)
7-
8 F87 20WT/BK (EXCEPT BASE)
9 L77 18BK/YL
10 V23 20BR/PK (MIDLINE/HIGHLINE)
11 L10 18BR/LG
12 M3 20PK/DB
13 L50 18WT/TN
14 -
15 L63 18DG/RD
16 L78 18DG/YL
17 V21 20DB/RD
18 -
19 -
20 M1 20PK
21 M2 18YL
22 M20 20BR
23 P30 16OR/WT
24 P31 16PK/WT
25 -
26 -
27 P100 18OR/BR
28 L38 18BR/WT (HIGHLINE)
29 X75 18DG (HIGHLINE)
30 P101 20OR/PK
31 G80 20YL/WT
32 G910 20VT/BR
33 -
34 X13 16BK/RD (HIGHLINE)
35 L62 18BR/RD
36 -
37 G78 20TN/BK
38 G71 18VT/YL
39 D25 18YL/VT (MIDLINE/HIGHLINE)
40 -
41 C15 12BK/WT
42 V22 20BR/YL
43 B40 14LB (MIDLINE/HIGHLINE)
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-39

C308 - LT. GRAY (REAR BODY SIDE)
CAV CIRCUIT
5 Z111 16BK (EXCEPT BASE)
6-
7 X75 18DG (EXCEPT BASE)
8 F87 20WT/BK (EXCEPT BASE)
9-
10 M20 20BR
11 M2 18YL
12 Z2 18BK/LG (EXCEPT BASE)
13 -
14 D25 18YL/VT (EXCEPT BASE)
C309 - BLUE (REAR BODY SIDE)
CAV CIRCUIT
1 V21 20DB/RD
2 P31 16PK/WT
3 F70 18PK/BK
4 P100 18OR/BR
5 P101 20OR/PK
6 G71 18VT/YL
7 V22 20BR/YL
8 P30 16OR/WT
9 L77 18BK/YL
10 -
11 G80 20YL/WT
12 Z235 16BK
13 G78 20TN/BK
14 G910 20VT/BR
C309 - BLUE (SPLITGATE SIDE)
CAV CIRCUIT
1 V21 20DB/RD
2 P31 16PK/WT
3 F70 18PK/BK
4 P100 18OR/BR
5 P101 20OR/PK
6 G71 18VT/YL
7 V22 20BR/YL
8 P30 16OR/WT
9 L77 18BK/YL (BUILT-UP-EXPORT)
10 -
11 G80 20YL/WT
12 Z235 16BK
13 G78 20TN/BK
14 G910 20VT/BR
8Wa - 80 - 42 8W-80 CONNECTOR PIN-OUTSKJ

JUNCTION BLOCK C3 - LT. BLUE 42 WAY
CAV CIRCUIT FUNCTION
1 A12 10RD/TN FUSED B(+)
2 A13 10PK/WT FUSED B(+)
3 A4 12BK/PK FUSED B(+)
4 L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
5 L43 18VT FUSED LEFT LOW BEAM OUTPUT
6- -
7 V55 16TN/RD FRONT WIPER PARK SWITCH SENSE
8 F1 18DB (LHD) FUSED IGNITION SWITCH OUTPUT (RUN-START)
8 F1 20DB (RHD) FUSED IGNITION SWITCH OUTPUT (RUN-START)
9 V6 14DB/YL (RHD) FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
9 VG 16DB/YL (LHD) FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
10 - -
11 A12 10RD/TN FUSED B(+)
12 - -
13 - -
14 - -
15 V14 18RD/VT FRONT WIPER ON/OFF RELAY CONTROL
16 L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
17 - -
18 V16 18VT/YL WIPER HIGH/LOW RELAY CONTROL
19 F20 18WT FUSED IGNITION SWITCH OUTPUT (RUN)
20 - -
21 - -
22 - -
23 - -
24 L50 18WT/TN (ABS) BRAKE LAMP SWITCH OUTPUT
25 - -
26 - -
27 - -
28 L77 18BK/YL FUSED LEFT INBOARD TAIL LAMP
29 M1 18PK FUSED B(+)
30 L78 18DG/YL FUSED PARK LAMP RELAY OUTPUT
31 - -
32 F15 18DB/WT FUSED IGNITION SWITCH OUTPUT (RUN)
33 L39 18LB FRONT FOG LAMP RELAY OUTPUT
34 A18 10PK FUSED B(+)
35 - -
36 - -
37 L33 18LG/BR FUSED LEFT HIGH BEAM OUTPUT
38 F22 18DB/PK (ABS) FUSED IGNITION SWITCH OUTPUT (RUN)
39 X2 18DG/RD HORN RELAY OUTPUT
40 A18 10PK FUSED B(+)
41 - -
42 A7 10RD/BK FUSED B(+)
8Wa - 80 - 68 8W-80 CONNECTOR PIN-OUTSKJ

LEFT FRONT WHEEL SPEED SENSOR (ABS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 B9 18RD LEFT FRONT WHEEL SPEED SENSOR 12 VOLT SUP-
PLY
2 B8 18RD/DB LEFT FRONT WHEEL SPEED SENSOR SIGNAL
LEFT HEADLAMP (BUILT-UP-EXPORT)-3WAY
CAV CIRCUIT FUNCTION
1 L33 18LG/BR FUSED LEFT HIGH BEAM OUTPUT
2 L43 18VT FUSED LEFT LOW BEAM OUTPUT
3 Z141 18BK GROUND
LEFT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLUE 3 WAY
CAV CIRCUIT FUNCTION
A L43 18VT FUSED LEFT LOW BEAM OUTPUT
B Z141 18BK GROUND
C L33 18LG/BR FUSED LEFT HIGH BEAM OUTPUT
LEFT HEATED SEAT ASSEMBLY (HIGHLINE) - LT. GRAY 4 WAY
CAV CIRCUIT FUNCTION
1 F99 16RD/YL DRIVER HEATED SEAT FEED
2 Z238 16BK/WT GROUND
3 P86 20PK/BK HEATED SEAT TEMPERATURE SENSOR SIGNAL
4 P141 20TN/LB DRIVER HEATED SEAT TEMPERATURE SENSOR
GROUND
LEFT HEATED SEAT SWITCH (HIGHLINE) - BLACK 8 WAY
CAV CIRCUIT FUNCTION
1 V23 20BR/PK FUSED IGNITION SWITCH OUTPUT (RUN)
2 P139 20VT/WT LEFT SEAT HIGH HEAT LED DRIVER
3 P133 20TN/DG LEFT SEAT HEATER SWITCH MUX
4 P137 20VT/DG LEFT SEAT LOW HEAT LED DRIVER
5 Z238 20BK/WT GROUND
6- -
7- -
8- -
8Wa - 80 - 72 8W-80 CONNECTOR PIN-OUTSKJ

RIGHT FRONT PARK/ TURN SIGNAL LAMP - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 L62 18BR/RD RIGHT TURN SIGNAL
2 L78 18DG/YL (EXCEPT BUILT-UP-EX-
PORT)FUSED PARK LAMP RELAY OUTPUT
3 Z142 18BK/WT GROUND
RIGHT FRONT POWER WINDOW MOTOR (MIDLINE/HIGHLINE) - LT. GRAY 2 WAY
CAV CIRCUIT FUNCTION
1 Q22 16VT/WT RIGHT FRONT WINDOW DRIVER DOWN
2 Q12 16BR RIGHT FRONT WINDOW DRIVER UP
RIGHT FRONT WHEEL SPEED SENSOR (ABS) - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 B7 18WT RIGHT FRONT WHEEL SPEED SENSOR 12 VOLT
SUPPLY
2 B6 18WT/DB RIGHT FRONT WHEEL SPEED SENSOR SIGNAL
RIGHT HEADLAMP (BUILT-UP-EXPORT)-3WAY
CAV CIRCUIT FUNCTION
1 L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
2 L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
3 Z142 18BK/WT GROUND
RIGHT HEADLAMP (EXCEPT BUILT-UP-EXPORT) - BLUE 3 WAY
CAV CIRCUIT FUNCTION
A L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
B Z142 18BK/WT GROUND
C L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
KJ8W-80 CONNECTOR PIN-OUTS8Wa-80-89

THROTTLE POSITION SENSOR - WHITE/BLUE 3 WAY
CAV CIRCUIT FUNCTION
1 K7 18OR 5 VOLT SUPPLY
2 K4 18BK/LB SENSOR GROUND
3 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
TRAILER TOW BRAKE LAMP RELAY-5WAY
CAV CIRCUIT FUNCTION
30 A6 16RD/BK FUSED B(+)
85 Z149 18BK/LB GROUND
86 L50 18WT/TN BRAKE LAMP SWITCH OUTPUT
87 L95 16DG/YL TRAILER TOW BRAKE LAMP RELAY OUTPUT
87A L76 16BK/OR TRAILER TOW BRAKE LAMP RELAY OUTPUT
87 L95 16DG/YL TRAILER TOW BRAKE LAMP RELAY OUTPUT
TRAILER TOW CIRCUIT BREAKER-2WAY
CAV CIRCUIT FUNCTION
1 A99 14RD/VT FUSED B(+)
2 F71 14RD FUSED B(+)
TRAILER TOW CONNECTOR - BLACK 10 WAY
CAV CIRCUIT FUNCTION
1- -
2 L74 16PK/BK RIGHT TURN SIGNAL
3 L10 18BR/LG BACK-UP LAMP FEED
4 F73 14YL TRAILER TOW RELAY OUTPUT
5 L78 18DG/YL FUSED PARK LAMP RELAY OUTPUT
6- -
7 B40 14LB TRAILER TOW BRAKE B(+)
8 Z149 16BK/LB GROUND
9 Z149 16BK/LB GROUND
10 L73 16PK/WT LEFT TURN SIGNAL
8Wa - 80 - 96 8W-80 CONNECTOR PIN-OUTSKJ

INSTALLATION
CAUTION: Do not use harsh cleaners to clean the
cylinder head covers. Severe damage to covers
may occur.
NOTE: The gasket may be used again, provided no
cuts, tears, or deformation has occurred.
(1) Clean cylinder head cover and both sealing sur-
faces. Inspect and replace gasket as necessary.
(2) Tighten cylinder head cover bolts and double
ended studs to 12 N´m (105 in. lbs.).
(3) Install left side breather and connect breather
tube.
(4) Connect injector electrical connectors and injec-
tor harness retaining clips.
(5) Install the resonator and air inlet hose.
(6) Connect negative cable to battery.
INTAKE/EXHAUST VALVES &
SEATS
DESCRIPTION
The valves are made of heat resistant steel and
have chrome plated stems to prevent scuffing. Each
valve is actuated by a roller rocker arm which pivots
on a stationary lash adjuster. All valves use three
bead lock keepers to retain the springs and promote
valve rotation.
STANDARD PROCEDURE - REFACING
NOTE: Valve seats that are worn or burned can be
reworked, provided that correct angle and seat
width are maintained. Otherwise the cylinder head
must be replaced.
NOTE: When refacing valves and valve seats, it is
important that the correct size valve guide pilot be
used for reseating stones. A true and complete sur-
face must be obtained.
(1) Using a suitable dial indicator measure the
center of the valve seat Total run out must not
exceed 0.051 mm (0.002 in).
(2) Apply a small amount of Prussian blue to the
valve seat, insert the valve into the cylinder head,
while applying light pressure on the valve rotate the
Fig. 15 CYLINDER HEAD COVERS
1 - LEFT SIDE CYLINDER HEAD COVER
2 - RIGHT SIDE CYLINDER HEAD COVER
Fig. 16 CYLINDER HEAD COVER -TYPICAL
1 - SCREWS
2 - CYLINDER HEAD COVER
9 - 26 ENGINE - 3.7LKJ
CYLINDER HEAD COVER(S) (Continued)

valve. Remove the valve and examine the valve face.
If the blue is transferred below the top edge of the
valve face, lower the valve seat using a 15 degree
stone. If the blue is transferred to the bottom edge of
the valve face, raise the valve seat using a 65 degree
stone.
(3) When the seat is properly positioned the width
of the intake seat must be 1.75 ± 2.36 mm (0.0689 ±
0.0928 in.) and the exhaust seat must be 1.71 ± 2.32
mm (0.0673 ± 0.0911 in.).
(4) Check the valve spring installed height after
refacing the valve and seat. The installed height for
both intake and exhaust valve springs must not
exceed 41.44 mm (1.6315 in.).
(5) The valve seat and valve face must maintain a
face angle of 44.5 ± 45 degrees angle (Fig. 17).
REMOVAL
NOTE: The cylinder heads must be removed in
order to perform this procedure.
(1) Remove rocker arms and lash adjusters. Refer
to procedures in this section (Fig. 18).
(2) Remove the camshaft bearing caps and the
camshaft.NOTE: All six valve springs and valves are removed
in the same manner; this procedure only covers
one valve and valve spring.
(3) Using Special Tool C-3422±B or C-3422±C
Valve Spring Compressor and Special tool 8519
Adapter, compress the valve spring.
NOTE: It may be necessary to tap the top of the
valve spring to loosen the spring retainers locks
enough to be removed.
(4) Remove the two spring retainer lock halves.
NOTE: the valve spring is under tension use care
when releasing the valve spring compressor.
(5) Remove the valve spring compressor.
(6) Remove the spring retainer, and the spring.
NOTE: Check for sharp edges on the keeper
grooves. Remove any burrs from the valve stem
before removing the valve from the cylinder head.
(7) Remove the valve from the cylinder head.
NOTE: The valve stem seals are common between
intake and exhaust.
(8) Remove the valve stem seal. Mark the valve for
proper installation.
Fig. 17 Valve Assembly Configuration
1 - VALVE LOCKS (3±BEAD)
2 - RETAINER
3 - VALVE STEM OIL SEAL
4 - INTAKE VALVE
5 - EXHAUST VALVE
6 - VALVE SPRING
Fig. 18 Rocker Arm Removal
1 - CAMSHAFT
2 - SPECIAL TOOL 8516
KJENGINE - 3.7L 9 - 27
INTAKE/EXHAUST VALVES & SEATS (Continued)