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2008 GMC Envoy Denali 5.3L No communication
Posted to GM Driveability on 6/9/2015 7 Replies

No communication with ebcm after attempting to re flash the module. In addition we don't have communication with ebcm and tcm. Car does run I did notice that tcm/ebcm use high speed Lan communication as well as class 2 communication not sure how it communicate...

7 Replies Received (View Replies)

  Related Documents & Media  2008 GMC Envoy Denali

 
Message Closed w/FIX

car Vehicle Data

2008 GMC Envoy Denali

VIN 1GKET63M08
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Sefi
EmissionsOBD-II Compliant
SymptomsNo Communication
OccursAlways

Trouble Codes

U1000Class 2 Communication Malfunction
Message Closed w/FIX

car Vehicle Data

2008 GMC Envoy Denali

VIN 1GKET63M08
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / Sefi
EmissionsOBD-II Compliant
SymptomsNo Communication
OccursAlways

Trouble Codes

U1000Class 2 Communication Malfunction