I am in need of a wiring diagram for a 2003 chevy s-10. I am installing a aftermarket keyless. Or at if the door locks are a - trip or variable resitance. thanks
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BGENT27
here ya go
| CHEVY S-10 pu 2000- 03 |
| WIRE | COLORS | LOCATION |
| 12 VOLTS CONSTANT | RED | IGNITION SWITCH HARNESS |
| IGNITION 1 | PINK | IGNITION SWITCH HARNESS |
| IGNITION 2 | WHITE | IGNITION SWITCH HARNESS |
| ACCESSORY /HEATER BLOWER | ORANGE | IGNITION SWITCH HARNESS |
| STARTER | YELLOW | IGNITION SWITCH HARNESS |
| PARKING LIGHTS | BROWN ( + ) | LT. BLUE PLUG @ BCM *1 |
| DOMELIGHT | ( - ) | PURPLE PLUG @ BCM *2 |
| PWR DOOR LOCK | LT. BLUE ( + ) | BROWN PLUG @ BCM |
| PWR DOOR UNLOCK | WHITE ( + ) | POSITIVE TRIGGER (TYPE A) |
| TRUNK RELEASE | N/A | |
| TACH SENSOR | WHITE (AC) | @ PCM *3 |
| BRAKE | WHITE (+) | @ BRAKE SWITCH |
| HORN | BLACK ( - ) | @ STEERING COLUMN *4 |
| FACTORY DISARM | LT. GREEN ( - ) | PURPLE PLUG @ BCM |
| FACTORY ANTI-THEFT | TYPE | PASSLOCK II |
NOTES:
*1 - This wire will not test when using the headlight switch. This wire is triggered by the DRL system. To meter the wire, start the car with the parking brake set, when the brake is released this wire will go to ground. The BCM (Body Control Module) is located to the right of the accelerator pedal below the radio. The plugs on the BCM face towards the driver side.
*2 - Use TAN for the driver door located in pin B4, use ORANGE wire for the passenger door located in pin B2. Use both wires and Diode isolate.
*3 - The PCM (Power Control Module) is located on the passenger fender. On the 2.2L the wire is in a Black 80 pin plug pin 10 and on the 4.3L the wire is in a RED 32 pin plug pin 20.
*4 - Also found in the BROWN plug at the BCM on vehicles with a factory alarm.