Code Enable Criteria
Conditions for running DTC:
- No VSS assembly DTCs P0502 or P0503.
- Ignition is on.
Conditions for setting DTC:
- PCM detects an open brake switch or circuit (zero volts) for 15 minutes without changing for 2 seconds and the following events occur 7 times; vehicle speed is less than 5 MPH, then vehicle speed is 5-20 MPH for 4 seconds, then vehicle speed is greater than 20 MPH for 6 seconds.