DTC 512

UnclassifiedGeneral

What This Code Means

DTC 512 resets with engine idling

Possible Causes

  • •Faulty ECM power and ground circuits
  • •Faulty ECM
  • •Intermittent fault

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 ECM power and ground circuit as necessary
  5. 5Replace ECM
  6. 6Clear DTC information using DST, cycle ignition OFF for 30 seconds, restart engine, operate to full operating temperature, and observe MIL and engine performance

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Get a diagnosis walkthrough for DTC 512 on your specific Power Solutions, Inc. unit — cited to the OEM manual, not a forum guess.

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