DTC P0123: Throttle/Pedal Position Sensor A Circuit High
WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2010 Mercury Mountaineer, 2010 Mercury Milan, 2010 Mercury Mariner, 2010 Mercury Grand Marquis, and 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
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: |
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| 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: |
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| Diagnostic Aids: | This concern exhibits a symptom of limited power. 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 . | ||