2004 Chevrolet Avalanche 1500 5.3L No communication
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...
FIX posted 7/29/2010
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Vehicle Data2004 Chevrolet Avalanche 1500
Trouble Codes
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Vehicle Data
2004 Chevrolet Avalanche 1500
VIN | 3GNEK12TX4 |
Engine | 5.3 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | OBD-II Compliant |
Symptoms | No Communication |
Occurs | Always |
Trouble Codes
U1000 | Class 2 Communication Malfunction |