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 Pontiac Sunfire AutomaticFACTORY OEM SERVICE PROCEDURE
Automatic Transmission Shift Lock Control Connector End Views
WARNING: This page is about a different car, the 2004 Pontiac Grand Am and 2004 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
A/T Shift Lock Control Solenoid Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | DK GRN/ WHT |
1135 | A/T Shift Lock Control Solenoid Supply Voltage |
| B | BLK | 250 | Ground |
Park/Neutral Position (PNP) Switch Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | PPL | 6 | Starter Solenoid Crank Voltage (L61) |
| 1 | PPL/WHT | 1035 | Starter Relay Coil Supply Voltage (LA1) |
| 2 | WHT | 776 | Transmission Range Switch Signal P |
| 3 | LT GRN | 275 | Park Neutral Position Switch Park Signal |
| 4 | LT GRN | 24 | Backup Lamp Supply Voltage |
| 5 | PNK | 539 | Ignition 1 Voltage |
| 6-7 | - | - | Not Used |
| 8 | YEL | 772 | Transmission Range Switch Signal B |
| 9 | BLK/WHT | 771 | Transmission Range Switch Signal A |
| 10 | GRY | 773 | Transmission Range Switch Signal C |
| 11 | BLK/WHT | 451 | Ground |
| 12 | YEL | 5 | Crank Voltage (L61) |
| 12 | PPL | 1500 | Ignition 0 Voltage (LA1) |
Stop Lamp Switch, C1 Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | ORN | 140 | Battery Positive Voltage |
| B | LT BLU | 20 | Stop Lamp Supply Voltage |
Stop Lamp Switch, C2 Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | LT GRN | 275 | Park Neutral Position Switch Park Signal |
| B | DK GRN/ WHT |
1135 | A/T Shift Lock Control Solenoid Supply Voltage |
| C-D | - | - | Not Used |
Factory Service Tools
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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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