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.