|DTC||Description||Possible Causes||Diagnostic Aides|
|P0123 – Throttle
Position (TP) Circuit High Input
|The TP sensor
circuit is monitored by the PCM for a high TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine OFF or key ON engine running the TP rotation angle (or voltage) changes above maximum calibrated limit, the test fails.
|● TP sensor not seated
● TP circuit short to PWR
● VREF short to PWR
● SIG RTN circuit open to TP sensor
● Damaged TP sensor
● Damaged PCM
|A TP PID (TP V PID) reading
greater than 93% (4.65 volts) in key ON engine OFF, continuous memory or key ON engine running indicates a hard fault.