How do I scan the 4 wheel drive switch

Tiny
ANONYMOUS
  • MEMBER
  • 2000 GMC SIERRA
  • 190,000 MILES
How do I scan the 4 wheel drive switch.
Saturday, December 8th, 2012 AT 1:14 AM

1 Reply

Tiny
ASEMASTER6371
  • EXPERT
You need a scan tool to acess the 4 wheel system for codes

Roy
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Saturday, December 8th, 2012 AT 1:17 AM

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