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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 556 (REAR PARKING ASSIST SYSTEM)COMPONENT LOCATORREAR PARKING ASSIST CONNECTOR END VIEWS
1999 GMC Forward Control 5.7 R, Automatic
Rear Parking Assist Connector End Views
1999 GMC Forward Control 5.7 R, AutomaticSECTION Rear Parking Assist Connector End Views
WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
Object Sensor Connector End View - LR Corner
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | YEL | 2375 | LR Corner Object Sensor Signal |
| 2 | GRY | 2379 | Object Sensor Low Reference |
| 3 | DK BLU | 2374 | Object Sensor Supply Voltage |
Object Sensor Connector End View - LR Middle
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | ORN | 2376 | LR Middle Object Sensor Signal |
| 2 | GRY | 2379 | Object Sensor Low Reference |
| 3 | DK BLU | 2374 | Object Sensor Supply Voltage |
Object Sensor Connector End View - RR Corner
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | RED | 2378 | RR Corner Object Sensor Signal |
| 2 | GRY | 2379 | Object Sensor Low Reference |
| 3 | DK BLU | 2374 | Object Sensor Supply Voltage |
Object Sensor - RR Middle
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | DK GRN | 2377 | RR Middle Object Sensor Signal |
| 2 | GRY | 2379 | Object Sensor Low Reference |
| 3 | DK BLU | 2374 | Object Sensor Supply Voltage |
Rear Parking Assist (RPA) Module Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | YEL | 2375 | LR Corner Object Sensor Signal |
| 2 | ORN | 2376 | LR Middle Object Sensor Signal |
| 3 | DK GRN | 2377 | RR Middle Object Sensor Signal |
| 4 | RED | 2378 | RR Corner Object Sensor Signal |
| 5 | DK BLU | 2374 | Object Sensor Supply Voltage |
| 6 | GRY | 2379 | Object Sensor Low Reference |
| 7 - 11 | - | - | Not Used |
| 12 | BLK | 850 | Ground |
| 13 | PNK | 1439 | Ignition 1 Voltage |
| 14 | BRN | 9380 | Rear Parking Assist Disable Switch Input |
| 15 | LT GRN | 24 | Backup Lamp Supply Voltage |
| 16 | LT GRN | 2525 | Rear Parking Assist Diagnostic Input |
| 17 | - | - | Not Used |
| 18 | DK GRN | 389 | Vehicle Speed Signal |
| 19 - 21 | - | - | Not Used |
| 22 | LT BLU | 2380 | Rear Parking Assist Chime Signal |
| 23 | WHT | 2370 | Telltale Assembly Supply Voltage |
| 24 | GRY | 2373 | Red Indicator Control |
| 25 | DK BLU | 2372 | Center Amber Indicator Control |
| 26 | ORN | 2371 | Left Amber Indicator Control |
Rear Parking Assist (RPA) Display Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | WHT | 2370 | Telltale Assembly Supply Voltage |
| B | ORN | 2371 | Left Amber Indicator Control |
| C | DK BLU | 2372 | Center Amber Indicator Control |
| D | GRY | 2373 | Red Indicator Control |
RENDER: 1.0x
NO RELATED
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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.