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International Automotive Technicians Network
2004 Chevrolet Avalanche 1500 5.3L No communication
Posted to GM Driveability on 6/16/2010 9 Replies

To all the gm techs i hope you can shed some light on this problem im having. Customer came in wanting to up date the pcm. Truck ran when it came in the shop. Before starting to do the up dates i used the tech 2 to check the state of health on the class 2 data...

9 Replies Received (View Replies)

  Related Documents & Media  2004 Chevrolet Avalanche 1500

 
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car Vehicle Data

2004 Chevrolet Avalanche 1500

VIN 3GNEK12TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Communication
OccursAlways

Trouble Codes

U1000Class 2 Communication Malfunction
Message Closed

car Vehicle Data

2004 Chevrolet Avalanche 1500

VIN 3GNEK12TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Communication
OccursAlways

Trouble Codes

U1000Class 2 Communication Malfunction