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00546 - Data Wiring faulty

00546 - Data Wiring faulty: Implausible Signal

Possible Symptoms

  • Engine not starting / immediate Shutdown
  • Malfunction Indicator Light (MIL) ON

Possible Causes

  • Wiring and/or Connector(s) from/to Immobilizer Control Module (J362) faulty
    • No Signal or Implausible Signal on W-Line between Immobilizer Control Module (J362) and Engine Control Unit or Fuel Cut-Off Valve Control Unit
  • Immobilizer Control Module (J362) incorrectly coded
  • Immobilizer Control Module (J362) faulty

Possible Solutions

  • Check Wiring and/or Connector(s) from/to Immobilizer Control Module (J362)
  • Check Immobilizer Control Module (J362) Coding, Baud Rate Setting
  • Check/Replace Immobilizer Control Module (J362)

Special Notes

  • Under certain circumstances this code may be stored after improperly operating the Vehicle/Ignition. For example after the Engine has stopped the Ignition is switched on again immediately (Engine Control Module is still in the Start-Up Phase).
    • In such a case switch off the Ignition and wait at least 10 seconds before switching it back on. Then check and clear Fault Codes.

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