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.
2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Entertainment Connector End Views
Audio Amplifier Connector End View, C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | BLK | 1051 | Ground |
| A2 | - | - | Not Used |
| A3 | ORN | 2640 | Battery Positive Voltage |
| A4-A8 | - | - | Not Used |
| A9 | LT BLU | 115 | Right Rear Speaker Output (-) |
| A10 | YEL | 116 | Left Rear Speaker Output (-) |
| A11 | DK GRN | 117 | Right Front Speaker Output (-) |
| A12 | GRY | 118 | Left Front Speaker Output (-) |
| B1 | BLK | 1051 | Ground |
| B2 | - | - | Not Used |
| B3 | ORN | 2640 | Battery Positive Voltage |
| B4 | - | - | Not Used |
| B5 | WHT | 1487 | Antenna Enable Signal |
| B6-B8 | - | - | Not Used |
| B9 | DK BLU | 46 | Right Rear Speaker Output (+) |
| B10 | BRN | 199 | Left Rear Speaker Output (+) |
| B11 | LT GRN | 200 | Right Front Speaker Output (+) |
| B12 | TAN | 201 | Left Front Speaker Output (+) |
Audio Amplifier Connector End View, C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | PPL | 1952 | Right Front Tweeter Speaker Output (-) |
| B | YEL | 1956 | Left Front Tweeter Speaker Output (-) |
| C | RED | 1955 | Right Rear Speaker Output (-) |
| D | WHT | 1959 | Left Rear Speaker Output (-) |
| E | LT BLU/BLK | 315 | Right Front Speaker Output (-) |
| F | LT GRN/BLK | 1794 | Left Front Speaker Output (-) |
| G | DK BLU/ WHT |
346 | Left Front Speaker Output (+) |
| H | DK GRN/WHT | 1795 | Right Front Speaker Output (-) |
| J | TAN | 1859 | Left Rear Speaker Output (+) |
| K | TAN | 1855 | Right Rear Speaker Output (+) |
| L | BLK | 1856 | Left Front Tweeter Speaker Output (+) |
| M | LT GRN | 1852 | Right Front Tweeter Speaker Output (+) |
Digital Radio Receiver Connector End View (Early Production)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | - | - | Not Used |
| 2 | BRN/WHT | 367 | Remote Radio Left Audio Signal |
| 3 | DK GRN/WHT | 368 | Remote Radio Right Audio Signal |
| 4-8 | - | - | Not Used |
| 9 | BLK | 1051 | Ground |
| 10 | BLK/WHT | 372 | Audio Common |
| 11 | BARE | 1705 | Drain Wire |
| 12-14 | - | - | Not Used |
| 15 | DK BLU | 2272 | Amplifier Class 2 Serial Data |
| 16 | ORN | 2640 | Battery Positive Voltage |
Digital Radio Receiver Connector End View (Late Production)
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| 1 | - | - | Not Used |
| 2 | BRN/YEL | 2059 | Auxiliary Audio Left Signal |
| 3 | WHT | 2058 | Auxiliary Audio Right Signal |
| 4-8 | - | - | Not Used |
| 9 | BLK | 1051 | Ground |
| 10 | PNK/BLK | 5152 | Audio Common |
| 11 | BARE | 1705 | Drain Wire |
| 12-14 | - | - | Not Used |
| 15 | DK BLU | 2272 | Amplifier Class 2 Serial Data |
| 16 | ORN | 2640 | Battery Positive Voltage |
Radio Connector End View, C1
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A1 | ORN | 1044 | Radio Class 2 Serial Data |
| A2-A5 | - | - | Not Used |
| A6 | PNK | 314 | Radio On Signal (w/o 9C1/9C3/9C6) |
| A7 | DK BLU | 1796 | Steering Wheel Controls Signal (w/o 9C1/9C3/9C6) |
| A8 | TAN | 201 | Left Front Speaker Output (+) |
| A9 | GRY | 118 | Left Front Speaker Output (-) |
| A10 | LT BLU | 115 | Right Rear Speaker Output (-) |
| A11 | DK BLU | 46 | Right Rear Speaker Output (+) |
| A12 | BLK | 1051 | Ground |
| B1 | ORN | 2640 | Battery Positive Voltage |
| B2 | - | - | Not Used |
| B3 | WHT | 1487 | Antenna Enable Signal |
| B4 | GRY | 8 | Instrument Panel Lamp Supply Voltage - 1 |
| B5 | BLK | 1050 | Ground |
| B6 | PPL | 2232 | Amplifier Present Signal (Monte Carlo) |
| B7 | - | - | Not Used |
| B8 | BRN | 199 | Left Rear Speaker Output (+) |
| B9 | YEL | 116 | Left Rear Speaker Output (-) |
| B10 | DK GRN | 117 | Right Front Speaker Output (-) |
| B11 | LT GRN | 200 | Right Front Speaker Output (+) |
| B12 | - | - | Not Used |
Radio Connector End View, C2
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A-G | - | - | Not Used |
| H | DK GRN/WHT | 368 | Remote Radio Right Audio Signal |
| J | BRN/WHT | 367 | Remote Radio Left Audio Signal |
| K | BLK/WHT | 372 | Audio Common |
| L | BLK/WHT | 372 | Remote Radio Audio Output (-) |
| M | DK GRN/ WHT |
368 | Remote Radio Right Audio Signal |
Radio Antenna Module Connector End View
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | WHT | 1487 | Antenna Enable Signal |
| B | DK GRN | 1927 | Radio Antenna/Rear Window Defog Control Module Supply Voltage |
Speaker Connector End View - LF Door
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | GRY | 118 | Left Front Speaker Output (-) |
| B | TAN | 201 | Left Front Speaker Output (+) |
| C | YEL | 1956 | Left Front Tweeter Speaker Output (-) |
| D | BLK | 1856 | Left Front Tweeter Speaker Output (+) |
Speaker Connector End View - RF Door
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | DK GRN | 117 | Right Front Speaker Output (-) |
| B | LT GRN | 200 | Right Front Speaker Output (+) |
| C | PPL | 1952 | Right Front Tweeter Speaker Output (-) |
| D | LT GRN | 1852 | Right Front Tweeter Speaker Output (+) |
Speaker Connector End View - LR
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TAN | 1859 | Left Rear Speaker Output (+) (UQ3) |
| A | BRN | 199 | Left Rear Speaker Output (+) (UW6/U62) |
| B | WHT | 1959 | Left Rear Speaker Output (-) (UQ3) |
| B | YEL | 116 | Left Rear Speaker Output (-) (UW6/U62) |
Speaker Connector End View - RR
| Connector Part Information |
|
||
|---|---|---|---|
| Pin | Wire Color | Circuit No. | Function |
| A | TAN | 1855 | Right Rear Speaker Output (+) (UQ3) |
| A | DK BLU | 46 | Right Rear Speaker Output (+) (UW6/U62) |
| B | RED | 1955 | Right Rear Speaker Output (-) (UQ3) |
| B | LT BLU | 115 | Right Rear Speaker Output (-) (UW6/U62) |
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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