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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls - Powertrain DTC Charts & Descriptions - (Hybrid)) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> DTC P0122: Throttle/Pedal Position Sensor A Circuit Low

DTC P0122: Throttle/Pedal Position Sensor A Circuit Low

WARNING: This page is about a different variant/trim than selected.
P0122 - THROTTLE/PEDAL POSITION SENSOR A CIRCUIT LOW

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 low voltage or open circuit.
Possible Causes: 
  • Open ETC TP sensor harness
  • Short to ground in the ETC TP sensor harness
  • Damaged TP sensor
  • SIG RTN circuit open to the TP sensor
Diagnostic Aids:  This concern exhibits a symptom of limited power. A TP1 PID reading less than 0.25 volt in key ON, engine OFF or key ON, engine running indicates a concern is present.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST DV .