Monitored & Set Conditions

Brake switch may also be referred to as stoplight switch or brakelight switch. Circuit is monitored in 2 tests. Test #1: Vehicle speed must be greater than 17 MPH to enable. TEST #2: Speed must be zero MPH and brake switch indicate on. DTC will set in Test #1 if vehicle speed goes to zero MPH without brake input. Condition must be repeated 9 times to set fault. DTC will set in Test #2 if vehicle speed goes above 17 MPH for more than 6.0 seconds without a change in brake state. Condition must be repeated 9 times to set fault. Possible causes for DTC to set are: intermittent condition, defective brakelight switch, defective PCM, or defective connectors or wiring.