Monitored & Set Conditions
Brake switch sense circuit is monitored with engine running. Test No. 1 is performed when vehicle speed is more than 17 MPH to enable. Test No. 2 is performed when vehicle is stopped and brake switch indicates ON. DTC will set when Test No. 1 senses speed go to zero MPH with no brake input. Condition must be repeated 9 times to set DTC. DTC will also set when Test No. 2 senses vehicle speed go to more than 17 MPH for more than 6.4 seconds without a change in brake state 9 times. Condition must be repeated 9 times to set DTC. This is a 2-trip fault. See TRIP INDICATOR under ON-BOARD DIAGNOSTICS under SELF-DIAGNOSTIC SYSTEM.