Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.
- The VIU detects an open, short to ground or short to B+ on the serial data return circuit.
- The VIU detects an open, short to ground or short to B+ on serial data (-) circuit.
- The VIU detects an open, short to ground or short to B+ on serial data (+) circuit.
- The VIU detects an open on the battery positive voltage circuit.
- All the above conditions are present for greater than 300 ms.