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Inspection Mode A

DTC Description & trouble part Condition Number of driving cycles on the detecting condition
P0087 FUEL RAIL/SYSTEM PRESSURE - TOO LOW BANK 1 Complete diagnosis with inspection mode B as well. 1
P0088 FUEL RAIL/SYSTEM PRESSURE - TOO HIGH BANK 1 Complete diagnosis with inspection mode B as well. 1
P0128 COOLANT THERMOSTAT (COOLANT TEMPERATURE BELOW THERMOSTAT REGULATING TEMPERATURE) - 2
P013A O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 2 - 2
P013E O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 2 - 2
P0141 O2 SENSOR HEATER CIRCUIT BANK 1 SENSOR 2 - 2
P014C A/F/O2 SENSOR SLOW RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 - 2
P014D A/F/O2 SENSOR SLOW RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 - 2
P015A A/F/O2 SENSOR DELAYED RESPONSE - RICH TO LEAN BANK 1 SENSOR 1 - 2
P015B A/F/O2 SENSOR DELAYED RESPONSE - LEAN TO RICH BANK 1 SENSOR 1 - 2
P0171 SYSTEM TOO LEAN BANK 1 Complete diagnosis with inspection mode B as well. 2
P0172 SYSTEM TOO RICH BANK 1 Complete diagnosis with inspection mode B as well. 2
P0300 RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED Complete diagnosis with inspection mode B as well. 2
P0301 CYLINDER 1 MISFIRE DETECTED Complete diagnosis with inspection mode B as well. 2
P0302 CYLINDER 2 MISFIRE DETECTED Complete diagnosis with inspection mode B as well. 2
P0303 CYLINDER 3 MISFIRE DETECTED Complete diagnosis with inspection mode B as well. 2
P0304 CYLINDER 4 MISFIRE DETECTED Complete diagnosis with inspection mode B as well. 2
P0459 EVAP SYSTEM (CPC) PURGE CONTROL VALVE "A" CIRCUIT HIGH - 2
P0562 SYSTEM VOLTAGE LOW - 1
P0563 SYSTEM VOLTAGE HIGH - 1
P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN BANK 1 Complete diagnosis with inspection mode B as well. 2
P2097 POST CATALYST FUEL TRIM SYSTEM TOO RICH BANK 1 Complete diagnosis with inspection mode B as well. 2
P2195 A/F/O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 1 - 2
P2196 A/F/O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 1 - 2
P2227 BAROMETRIC PRESSURE SENSOR "A" CIRCUIT RANGE/PERFORMANCE - 2
P2270 O2 SENSOR SIGNAL BIASED/STUCK LEAN BANK 1 SENSOR 2 - 2
P2271 O2 SENSOR SIGNAL BIASED/STUCK RICH BANK 1 SENSOR 2 - 2
WARNING: When performing inspection mode A 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, perform the clear memory of [Engine]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
  2. Drive for 20 minutes or more at a constant speed of 80 km/h (50 MPH) or more.
  3. Stop the vehicle and idle for one minute.
  4. Read the readiness code of [Engine] using Subaru Select Monitor and check that the concerned self-diagnosis is completed. Ref. to ENGINE (DIAGNOSTICS) (H4DOTC)>ALL READINESS DIAGNOSTIC CODE(S) .
  5. Read the pending code using the Subaru Select Monitor or general scan tool. Ref. to COMMON (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .