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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. On the «Main Menu» display, select {Each System Check}.
  3. On the «System Selection Menu», select {Engine Control System}.
  4. After engine type information is displayed, select [OK].
  5. On the «Engine Diagnosis» display, select {System Operation Check Mode}.
  6. On the «System Operation Check Mode» display, select the {Immobilizer 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. Refer to DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).
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