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Home >> Subaru >> 2019 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) >> Inspection Mode >> Procedure >> Inspection Mode W
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Inspection Mode W

DTC Item Condition Number of driving cycles on the detecting condition
P0134 A/F/O2 SENSOR CIRCUIT NO ACTIVITY DETECTED BANK 1 SENSOR 1 - 1
P1492 COIL 1 EGR "A" CONTROL CIRCUIT LOW - 1
P1493 COIL 1 EGR "A" CONTROL CIRCUIT HIGH - 1
P1494 COIL 2 EGR "A" CONTROL CIRCUIT LOW - 1
P1495 COIL 2 EGR "A" CONTROL CIRCUIT HIGH - 1
P1496 COIL 3 EGR "A" CONTROL CIRCUIT LOW - 1
P1497 COIL 3 EGR "A" CONTROL CIRCUIT HIGH - 1
P1498 COIL 4 EGR "A" CONTROL CIRCUIT LOW - 1
P1499 COIL 4 EGR "A" CONTROL CIRCUIT HIGH - 1
WARNING: When performing inspection mode W on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
NOTE: Perform the inspection mode after warming up the engine except that the engine coolant temperature at engine start is specified.
  1. Using the Subaru Select Monitor, clear the memory of [Engine Control System]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
  2. Drive according to the drive pattern described below.
    G13202322Courtesy of SUBARU OF AMERICA, INC.
  3. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAG)>DIAGNOSTIC TROUBLE CODE (DTC) .