Hello!
I'm want to install a remote starter in my wife's 2004 trailblazer. Does anyone have the wiring diagram for this vehicle? I really appreciate the help!
Thanks!
Carroll
| WIRE | COLORS | LOCATION |
| 12 VOLTS CONSTANT | RED and RED / WHITE | 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 | at FUSE BOX under LEFT REAR SEAT |
| DOMELIGHT | GRAY/BLACK (+) | at FUSE BOX under LEFT REAR SEAT |
| POWER DOOR LOCK | SEE NOTES | |
| POWER DOOR UNLOCK | SEE NOTES | *SEE DIAGRAM* |
| TRUNK RELEASE | SEE NOTES | |
| TACH SENSOR | WHITE | See NOTE *** |
| BRAKE | WHITE (+) | at the BRAKE SWITCH |
| HORN | BLACK / YELLOW (-) or BLACK (-) | at the STEERING COLUMN HARNESS or the BCM, TAN Plug, Pin E12 |
| FACTORY DISARM | LT. GREEN (-) | AT DRIVER'S DOOR MODULE IN THE DRIVER'S DOOR |
| FACTORY ANTI-THEFT | PASSLOCK II | Requires bypass module |
NOTES: Must go inside of the front Driver's door, the front Passenger door and the Rear Hatch to wire (3) separate Type C systems to the lock motors in each door. The wires are GRAY for lock and TAN for unlock. This will lock and unlock the two front doors and the rear hatch only. The middle doors, must be wired as a Type B system using the LT. BLUE for lock and the WHITE for unlock. The wires are located under the rear seat on the driver's side.
NOTE *** On the 4.2L engine the PCM (Power Control Module) is located on the DRIVERS SIDE of the engine, the TACH wire is in a BLUE plug Pin 49. On the 5.3L engine, the PCM is located on the DRIVERS SIDE of the engine but down low on the front, the TACH wire is in a GREEN plug, Pin 10.
NOTE **** The BCM (Body Control Module) is located under the LEFT REAR SEAT, attached to the FUSE BOX.
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MO
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