Power Solutions International, Inc.

113

UnclassifiedEmissions

What This Code Means

MIL ON (Malfunction Indicator Light ON); Engine Shutdown; ECM uses default value for the IAT sensor

Possible Causes

  • •Faulty ECM
  • •Faulty ECM connection
  • •Faulty Harness
  • •Faulty IAT sensor
  • •Faulty connection to sensor
  • •IAT Sensor Voltage greater than 4.950 volts for 1 second or longer while the engine is running
  • •Intermittent Problem
  • •Open IAT ground (5Vrtn1) circuit

Suggested Actions

  1. 1Disconnect IAT sensor from harness and jumper across terminal at connector to check if DST displays IAT voltage of 0.1 or less
  2. 2Jumper IAT sensor signal to ground to check if DST displays IAT voltage of 0.1 or less
  3. 3Key Off, disconnect wire harness header from ECM, carefully remove yellow lock from header at device output terminal, and carefully check resistance between MAP input at ECM header and signal at device. Ensure the resistance is <5 ohms. (NOTE: Do not insert probe or object into terminals to avoid spreading pins; probe on the side of the terminal).
  4. 4Perform On-Board (OBD) System Check

Related Power Solutions International, Inc. Fault Codes

11711811531330DTC 2211161121612215 7 2
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