Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 GMC Jimmy 2D Utility, Part Time, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls Connectors
Camshaft Position (CMP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PNK/BLK | 632 | Low Reference |
| B | BRN/WHT | 633 | CMP Sensor Signal |
| C | RED | 631 | 12 Volt Reference |
Central Sequential Fuel Injection (Central SFI)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BLK/WHT | 845 | Fuel Injector 5 Control |
| B | PNK | 439 | Ignition 1 Voltage |
| C | PNK/BLK | 1746 | Fuel Injector 3 Control |
| D | PNK | 439 | Ignition 1 Voltage |
| E | PNK | 439 | Ignition 1 Voltage |
| F | BLK | 1744 | Fuel Injector 1 Control |
| G | LT GRN/BLK | 1745 | Fuel Injector 2 Control |
| H | PNK | 439 | Ignition 1 Voltage |
| J | PNK | 439 | Ignition 1 Voltage |
| K | LT BLU/BLK | 844 | Fuel Injector 4 Control |
| L | PNK | 439 | Ignition 1 Voltage |
| M | YEL/BLK | 846 | Fuel Injector 6 Control |
Crankshaft Position (CKP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | LT GRN | 1867 | 12 Volt Reference |
| B | PPL | 574 | Low Reference |
| C | YEL | 573 | CKP Sensor Signal |
Engine Coolant Temperature (ECT) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BLK | 2761 | Low Reference |
| B | YEL | 410 | ECT Sensor Signal |
Evaporative Emission (EVAP) Canister Purge Solenoid
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PNK | 239 | Ignition 1 Voltage |
| B | DK GRN/WHT | 428 | EVAP Canister Purge Solenoid Control |
Evaporative Emission (EVAP) Canister Vent Solenoid
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | ORN | 140 | Ignition 1 Voltage |
| B | WHT | 1310 | EVAP Canister Vent Solenoid Control |
Fuel Pump and Sender Assembly
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PPL | 1589 | Fuel Level Sensor Signal |
| B | GRY | 120 | Fuel Pump Supply Voltage |
| C | BLK | 1650 | Ground Utility |
| BLK | 1750 | Ground Pickup | |
| D | BLK/WHT | 470 | Low Reference |
Fuel Tank Pressure (FTP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BLK/WHT | 470 | Low Reference |
| B | DK GRN | 890 | Fuel Tank Pressure Sensor Signal |
| C | GRY | 474 | 5 Volt Reference |
Heated Oxygen Sensor (HO2S), Bank 1 Sensor 1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TAN/WHT | 1664 | HO2S Low Signal (Bank 1 Sensor 1) |
| B | PPL/WHT | 1665 | HO2S High Signal (Bank 1 Sensor 1) |
| C | BLK | 3113 | HO2S Heater Low Control (Bank 1 Sensor 1) |
| D | PNK | 539 | Ignition 1 Voltage |
Heated Oxygen Sensor (HO2S), Bank 1 Sensor 2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TAN/WHT | 1669 | HO2S Low Signal (Bank 1 Sensor 2) |
| B | PPL/WHT | 1668 | HO2S High Signal (Bank 1 Sensor 2) |
| C | BRN | 2391 | HO2S Heater Low Control (Bank 1 Sensor 2) |
| D | PNK | 539 | Ignition 1 Voltage |
Heated Oxygen Sensor (HO2S), Bank 2 Sensor 1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TAN | 1667 | HO2S Low Signal (Bank 2 Sensor 1) |
| B | PPL | 1666 | HO2S High Signal (Bank 2 Sensor 1) |
| C | LT GRN | 3212 | HO2S Heater Low Control (Bank 2 Sensor 1) |
| D | PNK | 539 | Ignition 1 Voltage |
Idle Air Control (IAC) Valve
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | LT GRN/BLK | 444 | IAC Coil B Low Control |
| B | LT GRN/WHT | 1749 | IAC Coil B High Control |
| C | LT BLU/BLK | 1748 | IAC Coil A Low Control |
| D | LT BLU/WHT | 1747 | IAC Coil A High Control |
Ignition Coil
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PNK | 439 | Ignition 1 Voltage |
| B | - | - | Not Used |
| C | WHT/BLK | 1847 | Ignition Coil Control |
Ignition Control Module (ICM)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PNK | 439 | Ignition 1 Voltage |
| B | WHT | 423 | IC Timing Control |
| C | BLK/WHT | 451 | Ground |
| D | WHT/BLK | 1847 | Ignition Coil Control |
Intake Air Temperature (IAT) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | BLK | 2760 | Low Reference |
| B | TAN | 472 | IAT Sensor Signal |
Knock Sensor (KS)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | DK BLU | 496 | Knock Sensor Signal |
| B | GRY | 1716 | Low Reference |
Manifold Absolute Pressure (MAP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | ORN | 469 | Low Reference |
| B | LT GRN | 432 | MAP Sensor Signal |
| C | GRY | 2704 | 5 Volt Reference |
Mass Air Flow (MAF) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | YEL | 492 | MAF Sensor Signal |
| B | BLK/WHT | 451 | Ground |
| C | PNK | 239 | Ignition 1 Voltage |
Throttle Position (TP) Sensor
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | GRY | 2701 | 5 Volt Reference |
| B | BLK | 2752 | Low Reference |
| C | DK BLU | 417 | TP Sensor Signal |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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