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