DTC P0123: - Throttle/Pedal Position Sensor A Circuit High

DTC P0123: - THROTTLE/PEDAL POSITION SENSOR A CIRCUIT HIGH

For Vehicles With an Idle Air Control (IAC) Valve
Description:	The throttle position (TP) sensor circuit is monitored by the powertrain control module (PCM) for a high TP rotation angle (or voltage) input through the comprehensive component monitor (CCM). The test fails if the TP rotation angle (or voltage) changes above the maximum calibrated limit.
Possible Causes:	TP sensor not seated correctly TP sensor harness is short to voltage TP sensor harness short to VREF SIG RTN circuit open to the TP sensor Damaged TP sensor
Diagnostic Aids:	A TP PID reading greater than 93% (4.65 volts) in ignition ON, engine OFF or ignition ON, engine running indicates a concern is present.
For All others
Description:	The electronic throttle control (ETC) throttle position (TP) sensor 1 circuit was flagged as a concern by the powertrain control module (PCM) indicating a high voltage.
Possible Causes:	TP sensor harness short to VREF TP sensor harness is short to voltage Damaged TP sensor VREF circuit short to TP sensor
Diagnostic Aids:	Drive the vehicle, bring it to a stop, and turn the ignition to the OFF position. Start the engine and carry out the key on engine running (KOER) self-test at idle. Access the KOER DTCs on the scan tool. The TP1 signal is normally at a high voltage at closed throttle, and a lower voltage at wide open throttle (WOT) (opposite of TP2). A TP1 PID reading greater than 4.75 volts in ignition ON, engine OFF or ignition ON, engine running indicates a concern is present.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
Ranger	GO to Pinpoint Test DH .
All others	GO to Pinpoint Test DV .