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Home >> Subaru >> 2022 >> Outback Limited >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Continuously Variable Transmission (Diagnostics) (1 Of 2) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0605: Internal Control Module Read Only Memory (ROM) Error >> Notes
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DTC P0605: Internal Control Module Read Only Memory (ROM) Error: Notes

  1. DTC detecting condition: 

    Immediately at fault recognition

    Trouble symptom: 

    TCM ROM is faulty.

    CAUTION:

    After servicing or replacing faulty parts, perform the last step of the basic diagnostic procedure. Ref. to  Transmission (Diagnostics)>Basic Diagnostic Procedure  . 

  1. CHECK DTC  .
    1. Using the Subaru Select Monitor, perform the clear memory of [Transmission]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
    2. Read the DTC of [Transmission] using the Subaru Select Monitor. Ref. to Transmission (Diagnostics)>Diagnostic Trouble Code (DTC) .

      Is DTC P0605 displayed?

      Yes:  Replace the TCM. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR580)>TRANSMISSION CONTROL MODULE (TCM) . Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (TR690)>TRANSMISSION CONTROL MODULE (TCM) .

      No:  Current condition is normal. Check for interference from noise, etc.