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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (Except For STI) >> Drive Cycle >> Procedure >> Drive Cycle W
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Drive Cycle W

DTC Item Condition
P0134 A/F/O2 SENSOR CIRCUIT NO ACTIVITY DETECTED BANK 1 SENSOR 1 -
P1492 COIL 1 EGR "A" CONTROL CIRCUIT LOW -
P1493 COIL 1 EGR "A" CONTROL CIRCUIT HIGH -
P1494 COIL 2 EGR "A" CONTROL CIRCUIT LOW -
P1495 COIL 2 EGR "A" CONTROL CIRCUIT HIGH -
P1496 COIL 3 EGR "A" CONTROL CIRCUIT LOW -
P1497 COIL 3 EGR "A" CONTROL CIRCUIT HIGH -
P1498 COIL 4 EGR "A" CONTROL CIRCUIT LOW -
P1499 COIL 4 EGR "A" CONTROL CIRCUIT HIGH -

Diagnostic procedure: 

WARNING: When performing the drive cycle W on the public road, be very careful of the traffic condition and the safe driving must be the high priority.
  1. Using the Subaru Select Monitor, perform the clear memory for «Engine». Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Clear Memory Mode>OPERATION .
  2. Drive according to the drive pattern described below.
    G12453738Courtesy of SUBARU OF AMERICA, INC.
  3. Read the temporary code using the Subaru Select Monitor or general scan tool. Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Read Diagnostic Trouble Code (DTC)>OPERATION .