EV Diagnostics
Source-backed diagnostic reference

P1607 EV diagnostic code

ECM Internal Circuit Failure A

Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.

Reference definitions

  • ACURA: ECM Internal Circuit Failure A Source
  • BMW: CAN Version Source
  • BUICK: Serial Communication Problem With Devise 7 Source
  • CADILLAC: Serial Communication Problem With Device 7 Source
  • CHEVY: Serial Communication Problem With Device 7 Source
  • GM: Serial Communication Problem With Device 7 Source
  • GMC: Serial Communication Problem With Device 7 Source
  • HONDA: ECM Internal Circuit Failure A Source
  • INFINITI: ECM Internal Circuit Failure A Source
  • JAGUAR: MIL Output Circuit Source
  • OLDSMOBILE: Serial Communication Problem With Device 7 Source
  • OTHER: MIL O/P Circuit Malfunction Source
  • SATURN: Serial Communication Problem With Devise 7 Source
  • VOLKSWAGEN: Vehicle Speed Signal Error Message From Instrument Cluster Source

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