Power Solutions International

8901

UnclassifiedGeneral

What This Code Means

MIL ON during active fault; Closed Loop Disabled; Adaptive Learn Disabled; MIL (Malfunction Indicator Light) ON during active fault

Possible Causes

  • •Power supplied to the ECM exhibits low voltage dips or dropouts
  • •Power supplied to the ECM (alternator or battery power) is excessively noisy
  • •Internal failure within the ECM
  • •Insufficient ECM ground

Suggested Actions

  1. 1Verify that the alternator is working properly and there is not excessive noise on the alternator output or battery power from other loads
  2. 2Verify the ECM ground is sufficient (clean and tight to the engine block)
  3. 3Swap ECM with a known good part, run engine for 10 minutes, and then retest

Related Power Solutions International Fault Codes

89028904698789143468:18916303289203031DTC -16443014DTC 2 34
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