Conditions for Setting the DTCs
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- No valid messages are detected on the class 2 serial data circuit.
- The voltage level detected on the class 2 serial data circuit is under one of the following conditions:
- High
- Low
- High/Low-module is unable to distinguish between the two wiring conditions.
- The above conditions are met for approximately 3 seconds.