2003 JEEP GRAND CHEROKEE junction block

JUNCTION BLOCK C2 (RHD) - BLACK 52 WAY
CAV CIRCUIT FUNCTION
1 X3 22BK/RD HORN RELAY CONTROL
2- -
3 L39 20LB FOG LAMP RELAY OUTPUT
4- -
5 L61 20TN/LG LEFT TURN SIGNAL
6- -
7- -
8 V6 16DB FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
9 V6 16DB (GAS) FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
10 L62 20BR/RD RIGHT TURN SIGNAL
11 F991 20OR/DB (GAS) FUSED IGNITION SWITCH OUTPUT (RUN-START)
12 L39 20LB FOG LAMP RELAY OUTPUT
13 - -
14 - -
15 V16 22VT -
16 - -
17 - -
18 - -
19 - -
20 L7 20BK/YL PARK LAMP RELAY OUTPUT
21 L7 18BK/YL PARK LAMP RELAY OUTPUT
22 - -
23 - -
24 F37 16RD/LB FUSED B(+)
25 F22 18WT/TN FUSED IGNITION SWITCH OUTPUT (RUN)
26 L60 20TN RIGHT TURN SIGNAL
27 F45 20YL/RD FUSED IGNITION SWITCH OUTPUT (START)
28 V55 16TN/RD WIPER PARK SWITCH SENSE
29 - -
30 - -
31 - -
32 M1 20PK/RD FUSED B(+)
33 V55 16TN/RD (GAS) WIPER PARK SWITCH SENSE
34 - -
35 - -
36 A146 12OR/WT FUSED B(+)
37 - -
38 L34 18RD/OR FUSED RIGHT HIGH BEAM OUTPUT
39 L43 18VT FUSED LEFT LOW BEAM OUTPUT
40 - -
41 - -
42 F20 18DB/PK FUSED IGNITION SWITCH OUTPUT (RUN)
43 F12 20DB/WT (GAS) FUSED IGNITION SWITCH OUTPUT (RUN-START)
44 - -
45 A146 12OR/WT FUSED B(+)
46 - -
47 F32 20PK/DB FUSED B(+)
48 - -
49 L44 18VT/RD FUSED RIGHT LOW BEAM OUTPUT
50 L33 18RD FUSED LEFT HIGH BEAM OUTPUT
51 - -
52 F60 16RD/WT FUSED B(+)
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 89

JUNCTION BLOCK C3 - BLACK 52 WAY
CAV CIRCUIT FUNCTION
1 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
2- -
3 L60 20TN RIGHT TURN SIGNAL
4 L302 20LB/YL RIGHT TURN SWITCH SENSE
5 L61 20TN/LG LEFT TURN SIGNAL
6 L91 20DB/PK HAZARD SWITCH SENSE
7- -
8 L305 20LB/WT LEFT TURN SWITCH SENSE
9- -
10 L309 20PK/LG HIGH BEAM RELAY CONTROL
11 F23 18DB/YL FUSED IGNITION SWITCH OUTPUT (RUN)
12 F22 20WT/PK FUSED IGNITION SWITCH OUTPUT (RUN)
13 - -
14 F85 16VT/WT FUSED B(+)
15 C79 20BK/WT FUSED REAR WINDOW DEFOGGER RELAY OUTPUT
16 - -
17 - -
18 - -
19 - -
20 - -
21 - -
22 - -
23 - -
24 A31 12RD/BK IGNITION SWITCH OUTPUT (RUN-ACC)
25 F60 16RD/WT FUSED B(+)
26 - -
27 A41 12YL IGNITION SWITCH OUTPUT (START)
28 F14 20LG/YL FUSED IGNITION SWITCH OUTPUT (RUN-START)
29 A22 12BK/OR IGNITION SWITCH OUTPUT (RUN)
30 F991 18OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
31 Z234 20BK GROUND
32 F33 20PK/RD FUSED B(+)
33 X12 16WT/RD FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
34 M1 20PK FUSED B(+)
35 M1 20PK (AZC) FUSED B(+)
36 A21 12DB IGNITION SWITCH OUTPUT (RUN-START)
37 - -
38 F70 20PK/BK FUSED B(+)
39 X3 20GY/OR HORN RELAY CONTROL
40 F30 16RD FUSED CIGAR LIGHTER RELAY OUTPUT
41 F33 20PK/RD FUSED B(+)
42 - -
43 V23 20BR/PK FUSED IGNITION SWITCH OUTPUT (RUN-ACC)
44 M1 20PK FUSED B(+)
45 Z132 20BK/OR GROUND
46 - -
47 - -
48 F70 20PK/BK FUSED B(+)
49 - -
50 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
51 G5 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
52 F12 20DB/WT FUSED IGNITION SWITCH OUTPUT (RUN-START)
8W - 80 - 90 8W-80 CONNECTOR PIN-OUTWJ

JUNCTION BLOCK C4 - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 A148 10PK/WT FUSED B(+)
2 A148 10OR/WT FUSED B(+)
JUNCTION BLOCK C5 - WHITE 3 WAY
CAV CIRCUIT FUNCTION
1 A145 10WT/RD FUSED B(+)
2 A149 12RD/TN FUSED B(+)
3 A147 10RD/GY FUSED B(+)
KNOCK SENSOR - BLACK 4 WAY
CAV CIRCUIT FUNCTION
1 K4 18BK/LB SENSOR GROUND
2 K42 18DB/LG KNOCK SENSOR NO. 1 SIGNAL
3 K4 18BK/LB SENSOR GROUND
4 K142 18GY/BK KNOCK SENSOR NO. 2 SIGNAL
LEAK DETECTION PUMP (EXCEPT BUILT-UP-EXPORT)-4WAY
CAV CIRCUIT FUNCTION
1- -
2 K125 18OR/DG GENERATOR SOURCE
3 K106 20WT/DG LEAK DETECTION PUMP SOLENOID CONTROL
4 K107 20OR/YL LEAK DETECTION PUMP SWITCH SENSE
LEFT COURTESY LAMP - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F70 20PK/BK FUSED B(+)
2 M2 20YL COURTESY LAMP DRIVER
WJ8W-80 CONNECTOR PIN-OUT 8W - 80 - 91

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Blower Motor Controller (AZC) BK Behind Right Hand Side of
Instrument PanelN/S
Blower Motor Resistor Block
(MTC)BK Behind Right Hand Side of
Instrument PanelN/S
Body Control Module - C1 GY Lower Left Side of Instrument Panel 21, 22
Body Control Module-C2 -LHD WT Lower Left Side of Instrument Panel 21
Body Control Module-C2 -
RHDGY Lower Left Side of Instrument Panel 22
Boost Pressure Sensor
(Diesel)BK Top Front of Engine N/S
Brake Lamp Switch GY Brake Pedal Arm 31
C100 BK Right Front Engine Compartment 2, 5
C101 (4.0L RHD) LTGY Rear of Engine Compartment 15
C101 (4.7L RHD) BK Rear of Engine Compartment N/S
C102 (Diesel) BK Left Rear Engine Compartment 4, 7
C102 (Gas) BK Right Rear Engine Compartment 5, 10, 11, 14, 15, 18
C103 (Diesel) LTGY Rear of Engine 4, 7
C103 (Gas) GY Right Rear Engine Compartment 5, 10 11, 14, 15
C104 LTGY Right Rear Engine Compartment 14 18
C105 (Diesel) GY Right Rear Engine Compartment 4, 7, 8
C106 (Diesel) GY Lower Right Instrument Panel N/S
C106 (Gas RHD) GY Lower Right Instrument Panel N/S
C107 (Diesel) GY Left Rear Engine Compartment 4
C107 (LHD) BK Passenger Side Near Kick Panel 3, 30, 35
C107 (RHD) GY Passenger Side Near Kick Panel 3, 31
C108 BK Left Cowl 3, 4
C109 BK Near Transfer Case switch 12
C110 (Diesel) GY Top of Engine Near Glow Plugs 4, 7
C111 BK Left Front Frame Near Windshield
Washer Pump1, 3, 4
C112 BK Right Front Frame Near Horns 1, 5
C113 (Diesel) LTGY Rear of Engine 7, 8
C200 - LHD GY Passenger Side Near Kick Panel 19, 21, 35
C200 - RHD BK Passenger Side Near Kick Panel 20, 22
C201) WT Below Center Floor Console, Near
Park Brake19, 20, 21, 22
C202 WT HVAC Unit, Right Side of Instrument
Panel19, 20, 21, 22
C203 (AZC) WT HVAC Unit, Right Side of Instrument
Panel19, 20, 21, 22
C300 (LHD) GY Near Junction Block 30, 33
C301 (RHD) BK Near Junction Block 31
C302 BK At Driver Door 24, 25, 30, 31
8W - 91 - 2 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Driver Power Seat Horizontal
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Rear Riser
MotorRD At Driver Seat N/S
Driver Power Seat Rear Riser
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Recliner
MotorBK At Driver Seat N/S
Driver Power Seat Recliner
Motor Sensor (Premium II/III)BK At Driver Seat N/S
Driver Power Seat Switch
(Midline/Premium)GN At Driver Seat N/S
Driver Rear Power Window
MotorBK In Left Rear Door 28
Driver Rear Power Window
SwitchBL In Left Rear Door 28
Driver Seat Belt Switch At Switch N/S
EGR Solenoid (Diesel) BK Left Front Fender 7, 8
Electric Brake BL Near Junction Block N/S
Electronic Speed Control Servo BK Right Front of Engine Compartment 5
Engine Control Module C1
(Diesel)BK Left Front of Engine 7, 8
Engine Control Module C2
(Diesel)BK Left Front of Engine 7, 8
Engine Coolant Temperature
Sensor (Diesel)BK Top of Engine N/S
Engine Coolant Temperature
Sensor (GAS)BK Front of Engine 9, 13
Engine Oil Pressure Sensor BK Side of Engine 10, 11, 13
EVAP/Purge Solenoid BK Left Front Fender Near Controller
Antilock Brake3
Front Power Outlet RD Center of Instrument Panel 19, 20
Front Washer Pump WT Left Front of Engine Compartment 3, 4
Front Wiper Motor BK Left Side of Cowl 3, 4
Fuel Injector No.1 BK At Injector 7, 9, 13
Fuel Injector No.2 BK At Injector 7, 9, 14, 15
Fuel Injector No.3 BK At Injector 7, 9, 13
Fuel Injector No.4 BK At Injector 7, 9, 14, 15
Fuel Injector No.5 BK At Injector 9, 13
Fuel Injector No.6 BK At Injector 9, 14, 15
Fuel Injector No.7 (4.7L) BK At Injector 13
Fuel Injector No.8 (4.7L) BK At Injector 14, 15
Fuel Pressure Sensor (Diesel) BK Right Front of Engine N/S
Fuel Pressure Solenoid
(Diesel)BK Top of Engine N/S
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 5
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

CONNECTOR NAME/
NUMBERCOLOR LOCATION FIG.
Fuel Pump Module (Gas) BK Near Fuel Tank 33, 35
Fuel Tank Module Diesel) BK Near Fuel Tank 33, 35
Generator (Diesel) LTGY At Generator 8
Generator (Gas) BK At Generator N/S
Glove Box Lamp BK Inside Glove Box 19, 20, 22
Headlamp Leveling Switch
(Built-Up-Export)WT Driver Side of Instrument Panel 20
Hood Ajar Switch BK Left Side of Engine Compartment 3, 4
Horn No.1 BK Right Front Fascia 5
Horn No.2 BK Right Front Fascia 5
Hydraulic Cooling Module BK Right Front of Engine Compartment 5
Idle Air Control Motor BK Left Side of Engine Near Throttle
Body13
Ignition Switch - C1 WT On Steering Column 23
Ignition Switch - C2 BK On Steering Column 23
Input Speed Sensor (4.7L) BK Left Side of Transmission 16
Instrument Cluster WT At Instrument Cluster 19, 20
Intake Air Temperature Sensor
(Gas)GY Left Side of Engine 9, 13
Intake Air Temperature Sensor
(Diesel)BK Near T/O for Crankcase Heater 8
Intake Port Swirl Actuator
(Diesel)BK Right Rear of Engine Compartment N/S
Intrusion Transceiver Module
(Built-up-Export)BK In The Overhead N/S
Junction Block - C1 BK At Junction Block 30, 31, 33
Junction Block - C2 BK At Junction Block 30, 31
Junction Block - C3 BK At Junction Block 21, 22, 30
Junction Block - C4 WT At Junction Block 30, 31
Junction Block - C5 WT At Junction Block 30, 31
Knock Sensor (4.7L High
Output)BK Right Rear Side of Engine, Near
Coil on Plug No.8N/S
Leak Detection Pump (Except
Built-Up-Export)Left Front Wheel Opening 3
Left Courtesy Lamp BK Left Side of Instrument Panel 21 22, 23
Left Curtain Airbag BK Near Left C Pillar 37
Left Door Handle Courtesy
LampBK At Lamp N/S
Left Fog Lamp BK At Lamp 3, 4
Left Front Door Speaker WT In Left Front Door 24, 27
Left Front Impact Sensor BK Left Front Frame Near Windshield
Washer Pump3, 4
Left Front Park Lamp WT At Lamp N/S
8W - 91 - 6 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S210 (RHD) Lower Center Instrument Panel 22
S211 In Trough Near T/O for Left Courtesy Lamp N/S
S211 (RHD) Right Side of Instrument Panel 22
S212 In Trough Near T/O for Left Courtesy Lamp 21
S212 (RHD) Right Center Instrument Panel 22
S213 Near T/O for Cruise Switch No.1 N/S
S214 Near T/O for Cruise Switch No.1 N/S
S215 Near T/O for Horn Switch N/S
S216 Near T/O for Remote Radio Switch No.2 N/S
S217 In Trough Near T/O for Power Connector 21
S217 (RHD) Lower Center Instrument Panel 22
S221 Right Center of Instrument Panel 21
S221 (RHD) Left Center of Instrument Panel 22
S222 Right Center of Instrument Panel 21
S222 (RHD) Near T/O for Front Power Outlet 22
S223 Near T/O for Adjustable Pedals Switch 21
S223 (RHD) Lower Left Side of Instrument Panel 22
S224 Right Center of Instrument Panel 21
S224 (RHD) Upper Center of Instrument Panel 22
S300 Near T/O for G304 33
S301 In T/O for C304 33
S302 In Sill Trough Near T/O for C307 33, 35
S303 In Sill Trough Near T/O for C307 33, 35
S304 In Sill Trough Near T/O for C307 35
S305 In Sill Trough Near T/O for C307 N/S
S306 Near T/O for C310 37
S307 Near T/O for C310 37
S308 Between T/O's for C310 and Left Rear Lamp Assembly 36, 37
S309 Between T/O's for C310 and Left Rear Lamp Assembly 37
S310 Between T/O's for C310 and Left Rear Lamp Assembly 35, 37
S311 Near T/O for Left Rear Lamp Assembly 37
S312 Near T/O for C200 35
S313 Near T/O for G301 35
S314 Near T/O for C314 N/S
S315 (Gas) In Center Spline Near T/O for G301 35
S316 (Gas) Near T/O for Junction Block C2, C4, C5 N/S
S317 Between Troughs Near T/O for C314 N/S
S318 Between Troughs Near T/O for C314 N/S
S319 In Trough Near T/O for C304 33
S323 Near T/O for C314 N/S
S324 In T/O for C200 34
WJ8W-91 CONNECTOR/GROUND/SPLICE LOCATION 8W - 91 - 15
CONNECTOR/GROUND/SPLICE LOCATION (Continued)

SPLICE
NUMBERLOCATION FIG.
S326 Near T/O for C200 34, 35
S327 Near T/O for c307 34, 35
S328 In Sill Trough Near T/O for G300 34
S329 In Sill Trough Near T/O for G300 34
S330 Near T/O for G300 34
S331 In Sill Trough Near T/O for C303 34, 36
S332 In Sill Trough Near T/O for C303 34, 36
S333 Near T/O for Power Amplifiers 36
S334 In T/O for Power Amplifier - C2 34
S335 Near T/O for C314 36
S336 Near T/O for Driver Power Window Motor 24, 25
S338 Near T/O for Passenger Power Window Motor 26, 27
S339 Near T/O for Passenger Power Window Motor 26 27
S340 In T/O for Passenger Door Module - C1 26, 27
S341 Near T/O for C306 N/S
S345 Near T/O for Sunroof Switch 32
S346 Near T/O for Left Visor/Vanity Lamp 32
S347 Near T/O for Left Visor/Vanity Lamp 32
S348 Near T/O for Automatic Day/Night Mirror 32
S349 Near T/O for Automatic Day/Night Mirror 32
S351 Near T/O for Seat Belt Switch N/S
S352 Near T/O for Seat Belt Switch N/S
S353 Near T/O for Driver Lumbar Switch N/S
S355 Near T/O for C304 and C306 N/S
S356 In T/O for Left Rear Door Lock Motor/Ajar Switch 28
S357 In T/O for Right Rear Door Lock Motor/Ajar Switch 29
S358 Near Left B Pillar Sill Trough 35
S359 Near T/O for C302 34
S360 In T/O for C302 N/S
S362 In T/O for C200 34
S363 In T/O for C200 34
S364 Near B Pillar Sill Trough 36
S365
JapanNear T/O for Remote Keyless Entry Module 24, 25
S366 Near T/O for Junction Block C1 N/S
S367 (RHD) Near T/O for C310 N/S
S368 Near T/O for Power Amplifier - C1 34
S369 Near T/O for Left Visor Vanity Lamp N/S
S370 Near T/O for Sunroof Module 32
S400 Near Rear Window Defogger Ground Connector 38
S401 Near Rear Window Defogger Ground Connector 38
S402 Near T/O for Liftgate Flip-Up Ajar Switch 38
8W - 91 - 16 8W-91 CONNECTOR/GROUND/SPLICE LOCATIONWJ
CONNECTOR/GROUND/SPLICE LOCATION (Continued)