Closed Throttle Position Switch

Monitoring Procedure
This diagnostic operates during repeated vehicle acceleration and deceleration. If the ECM has seen five accelerations (open throttle, to above 20 mile 1 hour) and decelerations (closed throttle, to a stop) without a change of state of the idle switch, then the switch is judged to be faulty. The particular DTC depends on the output the switch gives during the failure judgement. The diagnostic trouble code (DTC) is stored if the failure judgement is made on two successive trips.

NOTE: The CTPS / idle switch comprises part of the throttle position sensor assembly.