Power Solutions International

117

UnclassifiedElectrical

What This Code Means

MIL ON during active fault; Adaptive disabled during active fault; ECM uses default value for the ECT sensor; DST displays ECT voltage less than the limit defined in calibration; ECT/CHT Low Voltage

Possible Causes

  • •ECT sensor voltage less than 0.050 volts for longer than 1 second
  • •Intermittent problem
  • •Faulty ECT sensor
  • •Sensor signal circuit shorted to ground
  • •Faulty ECM

Suggested Actions

  1. 1Perform On-Board (OBD) System Check
  2. 2Disconnect ECT sensor from harness and check if DST displays ECT voltage of 4.9 VDC or greater
  3. 3Check wire harness for ground short

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