1995 GMC Sierra C1500 Logo
Posted on Apr 26, 2009
Answered by a Fixya Expert

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There was an old security system in my truck prior to me buying it and ive had it for six months and today i tried to start it and it wouldnt even make a noise turnig the ignition except for the radio and lights and anything battery or electrical related worked fine i just had it towed and the guy said it was probably the old system that disabled my starter or something of that nature please help thanks

  • comingupwill Apr 26, 2009

    very helpful thank you

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1 Answer

Anonymous

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  • Master 15,935 Answers
  • Posted on Apr 26, 2009
Anonymous
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Joined: Dec 21, 2008
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Is the alarm factory or aftermarket?

If aftermarket - the brain will be under the dash attached somewhere near the steering column.

Look for an 10 or 12 Gauge YELLOW wire that has been cut.

This is your starter wire.

one half goes in one side of the brain, and the other comes out the other side.

either solder or use crimp-connectors to return this yellow wire back to factory.

If you no longer require the alarm - you can do the same for every other wire on the brain.






Here is the color code chart for your vehicle...

Constant 12V+ Red Ignition Switch Harness

Starter Yellow Ignition Switch Harness

Ignition Pink Ignition Switch Harness

Ignition 2 White Ignition Switch Harness

Ignition 3 Brown Ignition Switch Harness

Accessory Orange Ignition Switch Harness (Heat/AC)

Tach White Coil

Brake Switch White Brake Switch

Trunk Release Brown Switch or Driver's Kick Panel

Trunk Pin DIESEL- Glow Connector Blue behind Instrument Cluster

Parking Lights Brown (+) Light Switch

Head Lamp Yellow (+) Light Switch

Hood Pin n/a

Factory Disarm n/a

Door Trigger Purple (-) 4 Pin Black Connector Driver's Kick Panel
Door Lock Light Blue Driver's Kick Panel w/Keyless Positive

Door Unlock White W/o Keyless Entry Reverse Polarity (5 Wire)

Horn Wire Black (-) Steering Column

Windows Up LF=Blue, RF=Light Blue

Windows Down LF=Brown, RF=Tan

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