Express, Savana, G1500, G2500, G3500, 1998-2005

Powertrain Control Module (PCM)

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Fig. 2003-05 C1 CONNECTOR

PinWire ColorCircuit No.Function
1BLK/WHT451Ground
2LT GRN186712 Volt Reference
3PNK/BLK1746Fuel Injector 3 Control
4LT GRN/BLK1745Fuel Injector 2 Control
5-6----Not Used
7GRY27055 Volt Reference
8-10----Not Used
11LT BLU1876Knock Sensor 2 Signal
12DK BLU/WHT1869CKP Sensor Signal
13ORN/BLK463Requested Torque Signal (NW7)
14ORN/BLK1061UART Serial Data
15DK BLU/WHT774UART Serial Data
16----Not Used
17DK BLU1225Transmission Fluid Pressure Switch Signal B (A/T)
18RED1226Transmission Fluid Pressure Switch Signal C (A/T)
19PNK439Ignition 1 Voltage
20ORN440Battery Positive Voltage
21YEL/BLK1868Low Reference
22----Not Used
23BLK470Low Reference
24BLK/WHT451Ground
25TAN1671HO2S Low Signal - Bank 2 Sensor 2
26TAN1667HO2S Low Signal - Bank 2 Sensor 1
27BLK/WHT451Ground
28TAN/WHT1669HO2S Low Signal - Bank 1 Sensor 2
29TAN1664HO2S Low Signal - Bank 1 Sensor 1
30LT GRN1478Coolant Level Switch Signal
31----Not Used
32BLK/WHT771Transmission Range Switch Signal A (A/T)
33PPL420TCC Brake Switch/Cruise Control Release Switch Signal
34WHT776Transmission Range Switch Signal P (A/T)
35GRY48CPP Switch Signal (M/T)
36BLK1744Fuel Injector 1 Control
37YEL/BLK846Fuel Injector 6 Control
38PNK/WHT1101Damping Lift/Dive Signal
39YEL/BLK625Starter Enable Relay Control
40BLK/WHT451Ground
41-42----Not Used
43RED/BLK877Fuel Injector 7 Control
44LT BLU/BLK844Fuel Injector 4 Control
45GRY27005 Volt Reference (A/C)
46GRY4745 Volt Reference (EVA)
47----Not Used

2003-05 4.8L, 5.3L, 6.0L Engine PCM C1 Connector Pinout (1 of 2)

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Fig. 2003-05 C1 CONNECTOR (Continued)

PinWire ColorCircuit No.Function
48GRY5975 Volt Reference
49-50----Not Used
51DK BLU496Knock Sensor 1 Signal
52----Not Used
53GRY720Low Reference (A/T)
54ORN/BLK469Low Reference
55----Not Used
56WHT1579Fuel Temperature/Composition Signal (L59)
57ORN440Battery Positive Voltage
58DK GRN1049Class 2 Serial Data
59YEL710Class 2 Serial Data
60----Not Used
61PNK/BLK632Low Reference
62----Not Used
63BLK2755Low Reference
64BLK/WHT451Ground
65PPL1670HO2S High Signal - Bank 2 Sensor 2
66PPL1666HO2S High Signal - Bank 2 Sensor 1
67BLK/WHT451Ground
68PPL/WHT1668HO2S High Signal - Bank 1 Sensor 2
69PPL/WHT1665HO2S High Signal - Bank 1 Sensor 1
70BRN1174Oil Level Switch Signal
71----Not Used
72YEL772Transmission Range Switch Signal B (A/T)
73BRN/WHT633CMP Sensor Signal
74YEL410ECT Sensor Signal
75PNK1020Off/Run/Crank Voltage
76BLK/WHT845Fuel Injector 5 Control
77DK BLU/WHT878Fuel Injector 8 Control
78----Not Used
79WHT6873-2 Shift Solenoid Valve Control (M30/M32)
80BLK407Low Reference

2003-05 4.8L, 5.3L, 6.0L Engine PCM C1 Connector Pinout (2 of 2)

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Fig. 2003-05 C2 CONNECTOR

PinWire ColorCircuit No.Function
1BLK/WHT451Ground
2BRN418TCC PWM Solenoid Valve Control (A/T)
3TAN1465Fuel Pump Relay Control - Secondary (Dual Tanks)
4----Not Used
5TAN/BLK464Delivered Torque Signal (NW7)
6RED/BLK1228PC Solenoid Valve High Control (A/T)
7----Not Used
8LT BLU/WHT1229PC Solenoid Valve Low Control (A/T)
9DK GRN/WHT465Fuel Pump Relay Control - Primary
10WHT121Engine Speed Signal
11-13----Not Used
14RED/BLK380A/C Refrigerant Pressure Sensor Signal (A/C)
15BRN25Charge Indicator Control
16GRY/BLK16944WD Low Signal
17----Not Used
18DK GRN1433Clutch Start Switch Signal (M/T)
19BLK/WHT1695Axle Switch Signal (NP2)
20LT GRN/BLK822VSS Low Signal
21PPL/WHT821VSS High Signal
22RED/BLK1230AT ISS High Signal (4WD w/MT1)
23DK BLU/WHT1231AT ISS Low Signal (4WD w/MT1)
24----Not Used
25TAN472IAT Sensor Signal
26PPL2121IC 1 Control
27RED2127IC 7 Control
28LT BLU/WHT2126IC 6 Control
29DK GRN/WHT2124IC 4 Control
30----Not Used
31YEL492MAF Sensor Signal
32LT GRN432MAP Sensor Signal
33----Not Used
34DK GRN/WHT428EVAP Canister Purge Solenoid Control
35-38----Not Used
39RED63112 Volt Reference
40BLK/WHT451Ground
41----Not Used
42TAN/BLK422TCC Solenoid Valve Control (M30/M32)
43DK GRN/WHT459A/C Compressor Clutch Relay Control (A/C)
44----Not Used
45WHT1310EVAP Canister Vent Solenoid Control (EVA)
46BRN/WHT419MIL Control
47YEL/BLK12232-3 Shift Solenoid Valve Control (A/T)

2003-05 4.8L, 5.3L, 6.0L Engine PCM C2 Connector Pinout (1 of 2)

Click image to see an enlarged view

Fig. 2003-05 C2 CONNECTOR (CONTINUED)

PinWire ColorCircuit No.Function
48LT GRN12221-2 Shift Solenoid Valve Control (A/T)
49YEL/BLK1827Vehicle Speed Signal
50DK GRN/WHT817Vehicle Speed Signal
51YEL/BLK1227TFT Sensor Signal (A/T)
52BRN2391HO2S Heater Low Control Bank 1 Sensor 2
53RED/WHT3223HO2S Heater Low Control Bank 2 Sensor 2
54PPL1589Fuel Level Sensor Signal - Primary
55-56----Not Used
57BLK552Low Reference
58TAN/WHT332Oil Pressure Sensor Signal
59PPL806Crank Voltage
60BRN2129Low Reference
61BRN/WHT2130Low Reference
62GRY773Transmission Range Switch Signal C (A/T)
63PNK1224Transmission Fluid Pressure Switch Signal A (A/T)
64DK GRN890Fuel Tank Pressure Sensor Signal (EVA)
65----Not Used
66PPL/WHT2128IC 8 Control
67RED/WHT2122IC 2 Control
68DK GRN2125IC 5 Control
69LT BLU2123IC 3 Control
70-71----Not Used
72BLK/WHT3113HO2S Heater Low Control Bank 1 Sensor 1
73DK BLU1936Fuel Level Sensor Signal - Secondary
74LT GRN3212HO2S Heater Low Control Bank 2 Sensor 1
75GRY23Generator Field Duty Cycle Signal
76-79----Not Used
80BLK2751Low Reference (A/C)

2003-05 4.8L, 5.3L, 6.0L Engine PCM C2 Connector Pinout (2 of 2)

 
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