2002 Chevy Silverado Wiring Question
Printed From: the12volt.com
Forum Name: Vehicle Wiring Information & File Requests
Forum Discription: Request Car Alarm, Car Stereo, Cruise Control, Remote Starter, Navigation, Mobile Video, and Other Vehicle Specific Wiring Info, Manuals, Tech Tips
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=17315
Printed Date: May 11, 2024 at 10:37 PM
Topic: 2002 Chevy Silverado Wiring Question
Posted By: bacato
Subject: 2002 Chevy Silverado Wiring Question
Date Posted: August 07, 2003 at 9:31 PM
This should be easy for some of you pro's... I'm installing a small car computer into 2002 Chevy Silverado, and this will require a ground, and a 15a fused 12v continuous supply which I will get from under the hood via the fuse block auxillary connection. I will also need a 12v switched (on when ingition is on) supply - I was hoping to get this from the same general vacinity and run the 3 wires in one loom. Is there a good/safe supply for this switched 12v near the fuse block under the hood of this vehicle? Hopefully a connection that is intended for this use? Thanks in advance.
Replies:
Posted By: Montrealler
Date Posted: August 09, 2003 at 11:04 AM
| ITEM | WIRE COLOR |POL| WIRE LOCATION |
| 12V|red |+ |ignition harness |
| STARTER|yellow |+ |ignition harness |
| IGNITION|pink |+ |ignition harness |
| SECOND IGNITION|white |+ |ignition harness |
| ACCESSORY|orange |+ |ignition harness |
| POWER LOCK|lt. blue |+ |brown plug at BCM *1 |
| POWER UNLOCK|white |+ |brown plug at BCM *1 |
| LOCK MOTOR|gray | |drivers kick panel |
| UNLOCK MOTOR|tan | |drivers kick panel |
| DISARM DEFEAT|tan/black | |passengers kick panel |
| PARKING LIGHTS +|brown | |lt. blue plug at BCM *1 |
| PARKING LIGHTS -|white | |lt. blue plug at BCM *1 |
| HEADLIGHTS|white |+ |lt. blue plug at BCM *1 |
| DOOR TRIGGER|*2 |- |BCM *1 |
|FCTRY ALRM DISARM|lt.green |- |drivers kick *4 |
| TACHOMETER|white *5 | |ECM *3 |
| SPEED SENSE|dk.GREEN / WHITE | |ECM *3 |
| BRAKE WIRE|white |+ |brake pedal switch |
| HORN TRIGGER|black |- |brown plug at BCM *1 |
| WIPERS| | | |
| LF WINDOW UP/DN|blue - brown |A |drivers door switch |
| RF WINDOW UP/DN|blue - brown |A |passenger door switch |
| LR WINDOW UP/DN| | | |
| RR WINDOW UP/DN| | | |
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 BCM is located behind the drivers side of the dash. The plugs on the BCM face towards the rear of the vehicle. The parking lights are in pin A5 and the headlights are in pin A11. *2 Use tan for the drivers door located in pin B4 of the purple plug, and for the passenger door it will be a orange in pin B2 in the purple plug or dk.blue/white in pin B11 of the lt.blue plug, must diode isolate these wires. *3 ECM is located near the battery, down low, between the fender and the fan under the black plastic cover. On the 4.3L, the tach wire is at pin 20 in the connector labeled red, and VSS wire is at pin 3 in the connector labeled black. On the 4.8L, 5.3L, and 6.0L, the tach wire is located at pin 10 in the red connector, and VSS wire is located in pin 50 of the red connector. *4 Also found in the purple plug of the BCM. *5 Diesel tach wire is white at the cluster. Diesel wait to start wire is dk. blue (-) located at the instrument cluster.
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