Power Solutions International

89 20

UnclassifiedGeneral

What This Code Means

MIL ON during active fault; Closed Loop Disabled

Possible Causes

  • •Noisy power due to a failed alternator
  • •UEGO internal supply voltage is low
  • •Supply voltage problem
  • •UEGO internal supply voltage is too low for normal operation
  • •ECM unable to monitor noise via low-passed supply feedback

Suggested Actions

  1. 1Replace ECM and re-test
  2. 2Inspect alternator and repair/replace as needed
  3. 3Troubleshoot supply voltage source; repair/replace as needed
  4. 4Replace UEGO sensor and re-test

Related Power Solutions International Fault Codes

101A102 021 23102 915 74102 C15 7 210811111:06 52 - 5117 4
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