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2001 GMC Sierra 2500 HD SL 6.0L Alternator, PCM, Wiring
Posted to GM Electrical on 4/25/2006 7 Replies

The vehicle has a code P1637, The battery indicator illuminates intermittently in the cluster... but the alternater is always charging...

I looked in Mitchell for information about how the system works but I don't find usefull information... They make me test...

7 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Sierra 2500 HD SL

 
Message Closed w/Summary

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GTHK23U31
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedAlternator, PCM, Wiring
Message Closed w/Summary

car Vehicle Data

2001 GMC Sierra 2500 HD SL

VIN 1GTHK23U31
Engine6.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
AffectedAlternator, PCM, Wiring