DTC Parameters

DTC sets when ignition voltage is present at PCM brake switch input while vehicle is accelerated 8 times in one ignition cycle in the following manner:

• Vehicle speed is less than 5 MPH for 6 seconds.
• Then vehicle speed is 5-20 MPH for 4 seconds.
• Then vehicle speed is more than 20 MPH for 6 seconds.

DTC diagnostic runs once per ignition cycle. PCM will only fail DTC after 15 minutes have elapsed during which all 8 tests must have failed.