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.
The PCM detects an open brake switch or circuit, 0 volts, for 15 minutes without changing for 2 seconds, and the following events occur eight times:
- The vehicle speed is less than 8 km/h (5 mph);
- Then the vehicle speed is 8-32 km/h (5-20 mph) for 4 seconds;
- Then the vehicle speed is greater than 32 km/h (20 mph) for 6 seconds.