EV Diagnostics
Source-backed diagnostic reference

P1602 EV diagnostic code

Control Module Self Test Control Module Defective

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

  • BMW: Control Module Self Test Control Module Defective Source
  • BUICK: Loss Of EBTCM Serial Data Source
  • CADILLAC: Loss Of EBTCM Serial Data Source
  • CHEVY: Loss Of EBTCM Serial Data Source
  • CHRYSLER: PCM Not Programmed Source
  • DODGE: PCM Not Programmed Source
  • GM: Loss Of EBTCM Serial Data Source
  • GMC: Loss Of EBTCM Serial Data Source
  • JEEP: PCM Not Programmed Source
  • MAZDA: Powertrain Control Module Communication Line To TCM Error, Immobilizer System Communication Error With Powertrain Control Module Source
  • OLDSMOBILE: Loss Of EBTCM Serial Data Source
  • OTHER: Immobilizer/ECM Communication Error Source
  • PLYMOUTH: PCM Not Programmed Source
  • PONTIAC: PCM Not Programmed Source
  • SATURN: Loss Of EBTCM Serial Data Source
  • VOLKSWAGEN: Power Supply Terminal No 30 Low Voltage Source

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