DTC P0605: Internal Control Module Read Only Memory (ROM) Error

2004 Subaru Baja Base, StandardSECTION DTC P0605: Internal Control Module Read Only Memory (ROM) Error
WARNING: This page is about a different car, the 2004 Subaru Impreza. However, it is still accessible from the selected car via links, so may be relevant.
  1. OUTLINE OF DIAGNOSIS 

    Judge NG when SUM value of ROM is out of the standard value.

  2. ENABLE CONDITION 
    SECONDARY PARAMETERS AND ENABLE CONDITION CHART

    Secondary Parameters Enable Conditions
    Ignition switch ON
  3. GENERAL DRIVING CYCLE 

    Always perform the diagnosis continuously.

  4. DIAGNOSTIC METHOD 
    • Abnormality Judgment 

      Judge NG when the continuous time of completing the malfunction criteria below becomes more than 0.5 seconds.

      Judgment Value 

      MALFUNCTION CRITERIA AND THRESHOLD VALUE CHART

      Malfunction Criteria Threshold Value
      SUM value of ROM Standard value

      Time Needed for Diagnosis:  0.5 seconds

      Malfunction Indicator Light Illumination:  Illuminates as soon as malfunction occurs.

  5. DTC CLEAR CONDITION 
    • When the OK idling cycle was completed 40 times in a row
    • When "Clear Memory" was performed (Only at engine stop)
  6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION 
    • When the OK driving cycle was completed 3 times in a row
    • When "Clear Memory" was performed
  7. FAIL SAFE 

    Stop the current to electric control throttle motor. (Fix the throttle opening angle to 6°.)

  8. ECM OPERATION AT DTC SETTING 
    • Memorize the freeze frame data. (For test mode $02)
    • Memorize the diagnosis value and malfunction criteria value. (For test mode $06)
RENDER: 1.0x

NO RELATED

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