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International Automotive Technicians Network
2003 GMC Sierra 2500 HD SLE 6.6L Antitheft Light Is On
Posted to GM Electrical on 12/3/2012 4 Replies

dtc B2948 keeps resetting the 12v ref voltage on the passlock sensor does not shut off with the key shutting off have tried calibration updates on bcm and a known good bcm no change... changed ecm with known good ecm same thing preformed theft relearn with tec...

4 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23153
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedAntitheft Light Is On
ConditionsB2948
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23153
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedAntitheft Light Is On
ConditionsB2948