DTC 555

UnclassifiedGeneral

What This Code Means

DTC 555 resets with engine idling; Intermittent fault code reset issue

Possible Causes

  • •Faulty ECM power or ground circuits
  • •Faulty ECM

Suggested Actions

  1. 1Perform On-Board (OBD) System Check
  2. 2Connect Diagnostic Scan Tool (DST) in System Data Mode and clear system fault code
  3. 3Check all ECM power and ground circuits
  4. 4Repair power and ground circuits as necessary (refer to Wiring Repairs in Engine Electrical)
  5. 5Replace ECM
  6. 6Clear DTC information from ECM using DST
  7. 7Turn ignition OFF and wait 30 seconds
  8. 8Start engine and operate vehicle to full operating temperature
  9. 9Observe MIL, engine performance, and driveability to verify no stored codes return

ASK RUDY ABOUT THIS FAULT

Get a diagnosis walkthrough for DTC 555 on your specific Power Solutions, Inc. unit — cited to the OEM manual, not a forum guess.

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