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P1344

APP Sensor sense circuits APP1 and APP2 range / performance

APP Sensor sense circuits APP1 and APP2 range / performance

Scope: 2.5L/3.0L gasoline · System(s): EMS OBD II · Factory MIL flag: 2 · Default action: ECM Default: –APP angle default value used –Speed control inhibited –APP adaptions (wear, variance) inhibited

Common causes

  • APP Sensor to ECM sense circuits: short circuit
  • open circuit
  • high resistance APP Sensor sensor supply circuits: short circuit
  • high resistance APP Sensor sensor ground circuits: open circuit APP Sensor failure

Quick checks

  • Confirm freeze-frame and conditions when the code set
  • Inspect connectors, grounds, and harness for the circuit named in the code
  • Compare live sensor values vs expected (unplugged/biased sensors are common)

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