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2010 GMC Sierra 1500 WT 5.3L Trailer Module
Posted to GM Brakes on 12/5/2012 2 Replies

We have code b3894. When through aldata pinpoint test and replaced trialer module/fuel pump module. Did not fix. Then tried brake light switch, no luck. The scanner shows brake signal on at 90psi. The brake lights come on with very light pressure on pedal. As ...

2 Replies Received (View Replies)

  Related Documents & Media  2010 GMC Sierra 1500 WT

 
Message Closed w/FIX

car Vehicle Data

2010 GMC Sierra 1500 WT

VIN 1GTSCTE04A
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedTrailer Module
ConditionsSerial Data
Message Closed w/FIX

car Vehicle Data

2010 GMC Sierra 1500 WT

VIN 1GTSCTE04A
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedTrailer Module
ConditionsSerial Data