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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) >> DTC Diagnosis >> DTC P0183: - Fuel Temperature Sensor A Circuit High

DTC P0183: - Fuel Temperature Sensor A Circuit High

DTC P0183: - FUEL TEMPERATURE SENSOR A CIRCUIT HIGH

Description:  The comprehensive component monitor (CCM) monitors the fuel temperature sensor circuit to the powertrain control module (PCM) for high voltage. The test fails if the voltage exceeds a calibrated limit for a calibrated amount of time during testing.
Possible Causes: 
  • Open circuit
  • Open or short to voltage in the harness
  • Incorrect harness connection
  • Damaged fuel temperature sensor
Diagnostic Aids:  Verify the FRT PID value to determine an open or short.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test DD .