Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Any of the following conditions may cause the DTC to set.
- Voltage on the TCC brake switch signal circuit is always low.
- Voltage on the TCC brake switch signal circuit is always high.
- Voltage on the TCC brake switch signal circuit is high for 0.5-4.0 seconds when voltage is expected to be low.