2024 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Active Test: List

Active test item Range Contents Execution condition
Lighting Low LH Output ON/OFF Forcibly turns on the headlight left side Low beam.
  • When the battery is connected
  • Vehicle parked
Lighting Low RH Output ON/OFF Forcibly turns on the headlight right side Low beam.
  • When the battery is connected
  • Vehicle parked
Lighting High LH Output ON/OFF Forcibly turns on the headlight left side High beam.
  • When the battery is connected
  • Vehicle parked
Lighting High RH Output ON/OFF Forcibly turns on the headlight right side High beam.
  • When the battery is connected
  • Vehicle parked
F Fog Light Output ON/OFF Forcibly turns on the F fog light.
  • When the battery is connected
  • Vehicle parked
F Wiper Low Output ON/OFF Forcibly activates the F wiper Low.
  • When ignition switch is ON
  • Vehicle parked
F Wiper High Output ON/OFF Forcibly activates the F wiper High.
  • When ignition switch is ON
  • Vehicle parked
F Washer Output ON/OFF Forcibly activates the F washer.
  • When ignition switch is ON
  • Vehicle parked
R Wiper Output - - -
R Washer Output - - -
Wiper Deicer Output ON/OFF Forcibly activates the wiper deicer.
  • When ignition switch is ON
  • Vehicle parked
R Defogger Output ON/OFF Forcibly activates the R defogger.
  • When ignition switch is ON
  • Vehicle parked
Outside Buzzer Output Stop, 1 - 7 Forcibly activates the external buzzer.
  • With backup fuse
  • Vehicle parked
Head Lamp Washer Output - - -
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.