I need the wiring color codes to put a remote starter on the 2003 Impala with keyless entry.
CHEVY IMPALA 2003
ITEM | WIRE COLOR |POL| WIRE LOCATION |
| 12V|red |+ |ignition harness *1 |
| STARTER|yellow |+ |ignition harness *1 |
| IGNITION|pink |+ |ignition harness *1 |
| SECOND IGNITION|green |+ |ignition harness *1 |
| ACCESSORY|orange |+ |ignition harness *1 |
| SECOND ACCESSORY|brown *7 |+ |ignition harness *1 |
| POWER LOCK|ORANGE / black |*2 |gray 24-pin plug @ BCM *3 |
| POWER UNLOCK|same wire as lock |- |gray 24-pin plug @ BCM *3 |
| LOCK MOTOR|*4 | | |
| UNLOCK MOTOR|*4 | | |
| DISARM DEFEAT|*4 | | |
| PARKING LIGHTS +|do NOT use | | |
| PARKING LIGHTS -|white *8 | |pink 24-pin plug @ BCM *3 |
| HEADLIGHTS|yellow |- |gray 24-pin plug @ BCM *3 |
| DOOR TRIGGER|*5 |- |gray 16-pin plug @ BCM *3 |
| DOME SUPERVISION|use door trigger | | |
| TRUNK/HATCH PIN|RED / black |- |gray 24-pin plug @ BCM *3 |
|TRNK/HTCH RELEASE|black |- |release switch |
|FCTRY ALRM DISARM|lt green |- |gray 16-pin plug @ BCM *3 |
| TACHOMETER|white | |ignition coil |
| SPEED SENSE|green | |gray 16-pin plug @ BCM *3 |
| BRAKE WIRE|white |+ |brake switch |
| HORN TRIGGER|black *6 |- |steering column |
| WIPERS| | | |
| LF WINDOW UP/DN|blue - brown |A |drivers window switch |
| RF WINDOW UP/DN|lt. blu - tan |A |drivers door harness |
| LR WINDOW UP/DN|green - purple |A |drivers door harness |
| RR WINDOW UP/DN|lt. grn - purple |A |drivers door harness |
| SUN RF OPN/CLOSE| | | |
| SUN ROOF LIMIT| | | |
Notes:
NOTE: This vehicle has the passlock II immobilizer system that, when adding a remote start, must be interfaced with. Use DEI part 555t or 555L. *1 The ignition harness is located far right of the steering column, behind the ignition switch. *2 Lock and unlock use the same wire. Lock requires a negative trigger with a 470 ohm resistor in-line. Unlock is negative trigger. Must use relays. *3 The BCM is located above the brake pedal. It is a plastic box with three plugs that face the firewall. *4 Installation of factory keyless upgrade alarm is not recommended on this vehicle because the door lock motor wires rest at approximately 7 volts. *5 The drivers door trigger wire is blue. Blue/white will catch all other doors. Use both wires and diode isolate each. *6 Horn can also be found at the black plug with a blue insert above the gas pedal. *7 This wire must be powered as an accessory wire. If powered as an 2nd ignition the car will not crank. *8 Must isolate this wire from the BCM when doing remote start to avoid 'service engine soon' light. See directfax document #1600 for wiring information.
Make sure to test wires whenever possible
Luis
Sound Waves