122

Iveco 122 – Engine Control Unit (ECU) / Electronic Diesel Control (EDC): Control Circuit Malfunction lamp MIL (Check Engine)

Issue description

Electrical fault, incorrect signal, or loss of communication in the circuit that controls the Malfunction Indicator Lamp (the Check Engine light) on the dashboard.

Applies to these machines

  • Iveco Stralis
  • Iveco Daily
  • Iveco Tector
  • Iveco Eurocargo
  • Iveco Trakker

Check the cause

  1. Verify the physical condition of the Malfunction Indicator Lamp (MIL) / Check Engine bulb or LED in the instrument cluster to ensure it is not blown.

  2. Inspect the wiring harness between the Engine ECU and the instrument cluster for open circuits, shorts to ground, or shorts to voltage.

  3. Check the instrument cluster connectors for corrosion, loose pins, or damage.

Repair steps

  1. Replace the MIL bulb/LED

    Replace the MIL bulb/LED if it is found to be burnt out.

  2. Repair or replace wiring harness

    Repair or replace the damaged section of the wiring harness between the Engine ECU and the dashboard.

  3. Replace or remanufacture instrument cluster

    If the internal circuitry of the dashboard is faulty, remove and replace (or send out for remanufacture) the instrument cluster assembly.

Parts you might need

(26)
  • MIL Bulb

  • Engine Wiring Harness

  • Instrument Cluster (Daily)

    504055194
  • Instrument Cluster (Daily)

    504055192
  • Instrument Cluster (Daily)

    504055190
  • Instrument Cluster (Daily)

    504109084
  • Instrument Cluster (Daily)

    504055191
  • Instrument Cluster (Daily)

    5801815717
  • Instrument Cluster (Daily)

    1371844080
  • Instrument Cluster (Daily)

    503010230202
  • Instrument Cluster (Daily 4x4)

    93931249

    Specific to Daily 4x4

  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504156163
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504158813
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    5801674446
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504276235
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504276234
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504226363
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504025358
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504156164
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504156187
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504226361
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504226365
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504276236
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504101671
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504276233
  • Instrument Cluster (Stralis / Trakker / Eurocargo)

    504226362

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