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Communication Line Check

NOTE: The communication line between ECM and body integrated unit can be checked in "System Operation Check Mode". This is referred to as "Communication line check".
  1. Connect the Subaru Select Monitor.
  2. Select {Each System Check} in Main Menu.
  3. On the «System Selection Menu» display screen, select the {Engine Control System}.
  4. Select the [OK] after the information of engine type is displayed.
  5. On the «Engine Diagnosis» display screen, select the {System Operation Check Mode}.
  6. On the «System operation check mode» display, select the {security system}.
  7. Start the communication line check.
  8. Is «OK» displayed on screen? If displayed, go to step 9).

    If not, go to step  10).

  9. After diagnostic results, it is determined that the circuit is not shorted. Finish the communication line check.
  10. If a problem is detected, repair the trouble cause. <Ref. to DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC) .>
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