Avalanche 2500 4WD V8-8.1L VIN G (2003)
![background image](/chevrolet/avalanche_2500_4wd/v8-8.1l_vin_g/Page-569002.png)
Steps 1 - 9
Test Description
The numbers below refer to the step numbers on the diagnostic table.
2. This step tests for a faulty tow/haul switch.
3. This step tests for voltage input from the BCM to the tow/haul switch.
6. This step tests for ground integrity.