Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes of this DTC are as follows:
- CAN HI and CAN LO circuits shorted together
- CAN HI or CAN LO circuit shorted to ground
- CAN HI or CAN LO circuit shorted to voltage