where is the ignition wire under the dash on a 2002 sierra 1500.

2002 GMC SIERRA
160,000 MILES
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MECHANIC9
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  • 3 POSTS
i am installing a pro start ct-3371.
Nov 29, 2011 at 7:27 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
The big red wire at the ignition switch connector is the power input feed-you gonna have to find the ignition circuit by turning switch to run position and check for 12volt output on its wire other then the accy circuit-
Nov 29, 2011 at 7:38 PM
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