Power Solutions International

1644

UnclassifiedGeneral

What This Code Means

DTC 1644 resets; Engine does not operate normally; Stored diagnostic trouble codes

Possible Causes

  • •Shorted to ground circuit between the ECM connector and engine ground
  • •MIL control wire short to ground between the vehicle interface connector and vehicle chassis
  • •Faulty ECM

Suggested Actions

  1. 1Repair the shorted to ground circuit between the ECM connector and engine ground
  2. 2Repair the MIL control wire short to ground between the vehicle interface connector and vehicle chassis
  3. 3Replace the ECM

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