Conditions for Setting the DTC
WARNING: This page is about a different car, the 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- The system constantly monitors the voltage on the switch signal circuit.
- If the system detects a voltage level under 0.1 volt or greater than 4.9 volts for 2.5 seconds, the DTC is logged.