Possible Causes
WARNING: This page is about a different car, the 1999 Buick Regal and 1999 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
- Delivered Torque line (CKT464) open
- Delivered Torque line (CKT464) shorted to ground
- Delivered Torque line (CKT464) shorted to voltage
- Communication frequency malfunction