Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Verify DTC B3604, B3605, or B3606 is not set.
- If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ignition ON, observe the scan tool Pedal Forward Switch and Pedal Aft Switch parameters while cycling the adjustable pedal switch between the FWD and RWD position. The appropriate parameter should change between Active and Inactive as commanded.
- If the parameters do not change between the specified values, refer to Adjustable Pedal Switch Circuit Malfunction below.
- Verify the scan tool Pedal Position parameter is between 0.45-4.55 V.
- If not within the specified range, refer to Adjustable Pedal Position Sensor Circuit Malfunction below.
- Command the adjustable pedals to move forward and rearward. The pedals should move in the commanded direction.
- If the pedals do not move in the commanded direction, refer to Adjustable Pedal Motor Circuit Malfunction below.