Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

If during stable driving conditions, the longitudinal accelerometer signal becomes larger than 0.26 g, the electronic brake control module (EBCM) controller will disregard the signal so that a false EBCM intervention is prevented. A malfunction is detected if this condition continues for more than 2 seconds.
Under normal driving conditions, the long time filtered driving direction is straight ahead. The long time filtered longitudinal accelerometer value is called the offset. If the offset value is higher than 0.23 g, a malfunction is detected. Malfunction time depends on driving distance, vehicle speed and the amount of malfunctioning longitudinal accelerometer signal.
The longitudinal accelerometer signal is limited to an electrical stop of 1.8 g. If the longitudinal accelerometer signal is greater than 1.5 g for more than 500 milliseconds, a malfunction is detected.
At a standstill, the range of the longitudinal accelerometer signal is less than 0.7 g. If the longitudinal accelerometer signal is greater than 0.7 g at standstill, a malfunction is detected.
Longitudinal accelerometer signal cannot change rapidly under normal driving conditions. If the longitudinal accelerometer signal is changing faster than 55 g per second, a malfunction is detected.