2001 JEEP GRAND CHEROKEE engine coolant

Fig. 10 COOLANT LEVEL SENSOR REMOVAL/
INSTALLATION
WGENGINE 4.0L 7s - 19

ENGINE CONTROL MODULE C2 (DIESEL) - GRAY 28 WAY
CAV CIRCUIT FUNCTION
53 K156 18GY FUEL TEMPERATURE SENSOR SIGNAL
54 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
55 K68 18LG/YL NEEDLE MOVEMENT SENSOR SIGNAL
56 K134 18LB/BK REFERENCE COIL
57 K57 18LG/OR CONTROL SLEEVE POSITION SENSOR SIGNAL
58 K135 18WaT/BK MEASURE COIL
59 K140 18TN/WT FUEL QUANTITY ACTUATOR CONTROL
60 - -
61 K121 18BK/VT FUEL TEMPERATURE SENSOR GROUND
62 K67 18BR/BK NEEDLE MOVEMENT SENSOR GROUND
63 - -
64 - -
65 - -
66 K140 18TN/WT FUEL QUANTITY ACTUATOR CONTROL
67 K24 18GY/BK ENGINE SPEED SENSOR SIGNAL
68 - -
69 Z3 18BK/OR GROUND
70 - -
71 - -
72 - -
73 - -
74 - -
75 - -
76 - -
77 K153 18OR FUEL SHUT DOWN SOLENOID CONTROL
78 - -
79 K238 18VT FUEL TIMING SOLENOID CONTROL
80 K140 18TN/WT FUEL QUANTITY ACTUATOR CONTROL
8Wa - 80 - 62 8Wa-80 CONNECTOR PIN-OUTSWJ

ENGINE COOLANT TEMPERATURE SENSOR - ECM (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
2 K121 18BK/VT SENSOR GROUND
ENGINE COOLANT TEMPERATURE SENSOR - PCM (DIESEL)-2WAY
CAV CIRCUIT FUNCTION
1 K222 18TN/RD ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
2 K4 18BK/LB SENSOR GROUND
ENGINE OIL PRESSURE SENSOR - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 K6 18VT/BK (GAS) 5V SUPPLY
1 K6 18VT/WT (DIESEL) 5V SUPPLY
2 G60 18GY/YL ENGINE OIL PRESSURE SENSOR SIGNAL
3 K4 18BK/LB SENSOR GROUND
ENGINE SPEED SENSOR (DIESEL) - BLACK 3 WAY
CAV CIRCUIT FUNCTION
1 Z3 18BK/OR GROUND
2- -
3 K24 18GY/BK ENGINE SPEED SENSOR SIGNAL
WJ8Wa-80 CONNECTOR PIN-OUTS 8Wa - 80 - 63

HEADLAMP LEVELING SWITCH (BUILT-UP-EXPORT) - WHITE 3 WAY
CAV CIRCUIT FUNCTION
1 Z1 20BK GROUND
2 L7 18BK/YL PARK LAMP RELAY OUTPUT
3 L114 20VT/YL (RHD) HEADLAMP ADJUST SIGNAL
3 L114 20VT/DB (LHD) HEADLAMP ADJUST SIGNAL
HOOD AJAR SWITCH - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 G70 20BR/TN HOOD AJAR SWITCH SENSE
2 Z1 20BK GROUND
HORN NO. 1 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 X2 18DG/RD HORN RELAY OUTPUT
HORN NO. 2 - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 Z1 18BK GROUND
2 X2 18DG/RD HORN RELAY OUTPUT
HYDRAULIC COOLING MODULE - BLACK 2 WAY
CAV CIRCUIT FUNCTION
1 F142 18OR/DG FUSED AUTOMATIC SHUT DOWN RELAY OUTPUT
2 C240 18DB/RD ENGINE COOLANT TEMPERATURE
8Wa - 80 - 68 8Wa-80 CONNECTOR PIN-OUTSWJ

POWER CONNECTOR - WHITE 2 WAY
CAV CIRCUIT FUNCTION
1 A148 16VT FUSED B(+)
2 Z1 16BK GROUND
POWERTRAIN CONTROL MODULE C1 (DIESEL) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1- -
2 A142 14DG/OR AUTOMATIC SHUT DOWN RELAY OUTPUT
3- -
4 K4 18BK/LB SENSOR GROUND
5- -
6 T41 18BR/YL PARK/NEUTRAL POSITION SWITCH SENSE
7- -
8 K159 18GY ENGINE SPEED SENSOR SIGNAL
9- -
10 - -
11 - -
12 - -
13 - -
14 - -
15 - -
16 K222 18TN/RD PCM ENGINE COOLANT TEMPERATURE SENSOR SIG-
NAL
17 K7 18OR 5V SUPPLY
18 G8 18LB/BK FUEL MONITOR SIGNAL
19 - -
20 - -
WJ8Wa-80 CONNECTOR PIN-OUTS 8Wa - 80 - 91

POWERTRAIN CONTROL MODULE C1 (GAS) - BLACK 32 WAY
CAV CIRCUIT FUNCTION
1 K93 14TN/OR (4.7L) COIL DRIVER NO. 3
1 K93 16TN/OR (4.0L) COIL DRIVER NO. 3
2 F991 18OR/DB FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K94 14TN/LG (4.7L) COIL DRIVER NO. 4
4 K4 18BK/LB SENSOR GROUND
5 K96 14TN/LB (4.7L) COIL DRIVER NO. 6
6 T41 18BR/YL PARK/NEUTRAL POSITION SWITCH SENSE
7 K91 16TN/RD (4.0L) COIL DRIVER NO. 1
7 K91 14TN/RD (4.7L) COIL DRIVER NO. 1
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9 K98 14LB/RD (4.7L) COIL DRIVER NO. 8
10 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
11 K40 18BR/WT IDLE AIR CONTROL NO. 3 DRIVER
12 - -
13 - -
14 - -
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 K2 18TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
17 K7 18OR 5V SUPPLY
18 K44 18TN/YL CAMSHAFT POSITION SENSOR SIGNAL
19 K39 18GY/RD (4.0L) IDLE AIR CONTROL NO. 1 DRIVER
19 K39 18GY/BK (4.7L) IDLE AIR CONTROL NO. 1 DRIVER
20 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
21 K95 14TN/DG (4.7L) COIL DRIVER NO. 5
22 A7 14RD/BK FUSED B(+)
23 K22 18OR/RD THROTTLE POSITION SENSOR SIGNAL
24 K241 18LG/RD OXYGEN SENSOR 1/1 SIGNAL
25 K41 18BK/DG OXYGEN SENSOR 1/2 SIGNAL
26 K141 18TN/WT OXYGEN SENSOR 2/1 SIGNAL
27 K1 18DG/RD MAP SENSOR SIGNAL
28 - -
29 K341 18PK/WT (EXCEPT 4.0L EXCEPT
BUILT-UP-EXPORT)OXYGEN SENSOR 2/2 SIGNAL
30 - -
31 Z11 14BK/WT GROUND
32 Z12 14BK/TN GROUND
8Wa - 80 - 92 8Wa-80 CONNECTOR PIN-OUTSWJ