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C2 - Underhood Fuseblock 2004
Pin Wire Color Circuit No. Function
A1-A2 -- -- Not Used
A3 DK GRN 59 A/C Compressor Clutch Supply Voltage (CJ2/CJ3)
A4 -- -- Not Used
A5 ORN 4340 Battery Positive Voltage (C42)
A6 -- -- Not Used
A7 DK GRN/WHT 465 Fuel Pump Relay Control - Primary
A8 ORN 440 Battery Positive Voltage (M74)
A9 PNK 1339 Ignition 1 Voltage
A10 LT BLU 1320 CHMSL Supply Voltage/Stop Lamp Supply Voltage (KUP)
A11 GRY 1524  
GRY 1524 Trailer Backup Lamp Supply Voltage
A12 PNK 439 Ignition 1 Voltage (L59)
PNK 439 Ignition 1 Voltage (EVA)
B1 -- -- Not Used
B2 ORN 3440 Battery Positive Voltage (L18/PTO)
B3 BLK/WHT 1695 Axle Switch Signal
BLK/WHT 1695 Axle Switch Signal
B4-B6 -- -- Not Used
B7 BLK 550 Ground
B8 ORN 440 Battery Positive Voltage
ORN 440 Battery Positive Voltage
B9 PNK 1039 Ignition 1 Voltage
PNK 1039 Ignition 1 Voltage (LLY)
B10 PNK 439 Ignition 1 Voltage - IAT/MAF Sensor (Gas)
PNK 439 Ignition 1 Voltage - PCM (Gas)
B11-B12 -- -- Not Used
C1-C2 -- -- Not Used
C3 DK GRN/WHT 459 A/C Compressor Clutch Relay Control (CJ2/CJ3)
C4-C9 -- -- Not Used
C10 PNK 1039 Ignition 1 Voltage (Except 4.3L)(Gas)
PNK 1039 Ignition 1 Voltage (Gas)
C11 -- -- Not Used
C12 PPL 420 TCC Brake Switch/Cruise Control Release Signal
PPL 420 TCC Brake Switch/Cruise Control Release Signal (M74)
D1-D2 -- -- Not Used
D3 LT GRN 275 Park Neutral Position Switch Park Signal
D4-D5 -- -- Not Used
D8 PNK 539 Ignition 1 Voltage - HO2S Bank 1 Sensor 1(Gas except HP2)
PNK 539 Ignition 1 Voltage - HO2S Bank 2 Sensor 1(Gas except HP2)
     
     
D9 PNK 1239 Ignition 1 Voltage (Gas)
     
     
D10 PNK 1039 Ignition 1 Voltage (Gas)
PNK 1039 Ignition 1 Voltage (Gas)
D11 PPL 6 Starter Solenoid Crank Voltage (w/o HP2)
D12      
E1-E5 -- -- Not Used
E6 PNK 1239 Ignition 1 Voltage - Fuel Injector 2 (Gas)
PNK 1239 Ignition 1 Voltage - Fuel Injector 4 (Gas)
     
E7 PNK 1539 Ignition 1 Voltage - HO2S - Bank 1 Sensor 2 (Gas except HP2)
PNK 1539 Ignition 1 Voltage - HO2S - Bank 2 Sensor 2 (Gas except HP2)
     
     
E8-E9 -- -- Not Used
E10 PNK 1239 Ignition 1 Voltage (Gas) (Except 4.3L)
PNK 1239 Ignition 1 Voltage (Gas)
E11 PNK 1020 Off/Run/Crank Voltage (All Automatic Transmissions Except M74)
PNK 1020 Off/Run/Crank Voltage
E12 -- -- Not Used
F1-F2 -- -- Not Used
F3 PPL 806 Crank Voltage
F4-F7 -- -- Not Used
F8 PNK 839 Ignition 1 Voltage
F9 PNK 639 Ignition 1 Voltage
F10 PNK 1020 Ignition 0 Voltage
PNK 1020 Ignition 0 Voltage (M74)
F11 DK GRN 1433 Park/Neutral Start Switch Signal
F12 -- -- Not Used
C100 - I/P Harness to Engine Harness
Pin Wire Color Circuit No. Function
A DK BLU 84 Cruise Control Set/Coast Switch Signal (KUP)
LT BLU/BLK 396 Cruise Control Engaged Signal (w/o KUP)
B GRY 48 CPP Switch Signal (ML6, MG5 )
C BRN 241 Ignition 3 Voltage (TP2)
D DK GRN/WHT 817 Vehicle Speed Signal
E DK BLU 507 Wait to Start Indicator Control (Diesel)
F -- -- Not Used
G BRN/WHT 419 MIL Control
H DK GRN 1049 PCM Class 2 Serial Data
J BLK/WHT 5668 Engine ON Signal (SBA)
K WHT 121 Engine Speed Signal
L GRY 397 Cruise Control ON Switch Signal (K34)
M YEL 710 Class 2 Serial Data
N BRN 241 Ignition 3 Voltage (NP1, NP2, and NP8)
P DK BLU 204 A/C Low Pressure Sensor Signal (CJ2/CJ3)
R YEL 2470 Class 2 Serial Data (M74)
S GRY/BLK 87 Cruise Control Resume/Accel Switch Signal
C152 - Chassis Harness to Engine Harness
Pin Wire Color Circuit No. Function
A -- -- Not Used
B TAN 1465 Fuel Pump Relay Control - Secondary - Dual Fuel Tanks (Gas)
C GRY 474 5-Volt Reference (Gas)
D DK GRN 890 Fuel Tank Pressure Sensor Signal (Gas)
E YEL/BLK 1827 Vehicle Speed Signal
F WHT 1310 EVAP Canister Vent Solenoid Control (Gas)
G -- -- Not Used
H DK BLU 1936 Fuel Level Sensor Signal - Secondary - Dual Fuel Tanks
J BLK 470 Low Reference
K PPL 1589 Fuel Level Sensor Signal - Primary
L TAN/BLK 464 Delivered Torque Signal (NW7)
M ORN/BLK 463 Requested Torque Signal
C153 - 4 Wheel Drive Harness to Engine Harness (NP8/NR4)
Pin Wire Color Circuit No. Function
A GRY/BLK 1694 4WD Low Signal
B BLK/WHT 1695 Axle Switch Signal (NP2)
C BRN 241 Ignition 3 Voltage