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Home >> Subaru >> 2023 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Anti-Theft System - Security And Locks >> Keyless Access With Push Button Start System >> Inspection >> Power Supply Switching Function Check

Power Supply Switching Function Check

  1. Check push button ignition switch function
    1. Check the power supply switching control function with push button ignition switch operation, brake pedal operation, and select lever position.
      • AT model
      Select lever position Brake pedal operation Push button ignition switch operation
      P Released Repeat Ignition switch OFF → ACC ON → Ignition switch ON → Ignition switch OFF
      P Released Engine running → Ignition switch OFF
      P Depressed Ignition switch OFF → Engine started
      P Depressed ACC ON → Engine started
      P Depressed Ignition switch ON → Engine started
      P Depressed Engine running → Ignition switch OFF
      N Released Repeat Ignition switch OFF → ACC ON → Ignition switch ON → ACC ON
      N Released Engine running → ACC ON
      N Depressed Ignition switch OFF → Engine started
      N Depressed ACC ON → Engine started
      N Depressed Ignition switch ON → Engine started
      N Depressed Engine running → ACC ON
      Except for P and N Released Repeat Ignition switch OFF → ACC ON → Ignition switch ON → ACC ON
      Except for P and N Released Engine running → ACC ON
      Except for P and N Depressed Ignition switch OFF → Ignition switch ON
      Except for P and N Depressed ACC ON → Ignition switch ON
      Except for P and N Depressed Engine running → ACC ON
      • MT model
      Shift lever position Clutch pedal operation Push button ignition switch operation
      - Released Repeat Ignition switch OFF → ACC ON → Ignition switch ON → Ignition switch OFF
      Released Engine running → Ignition switch OFF
      Depressed Ignition switch OFF → Engine started
      Depressed ACC ON → Engine started
      Depressed Ignition switch ON → Engine started
      Depressed Engine running → Ignition switch OFF
    2. Check the power supply switching functions with other than the push button ignition switch operation.
      • With the select lever in "P" position (AT model) and ACC ON, check that the ACC changes from ON → OFF when the vehicle is left for 20 minutes or more.
      • With the select lever in "P" position (AT model) and the ignition switch ON, check that ignition switch changes from ON → OFF when the vehicle is left for 1 hour or more.
    3. If the inspection result indicates an improper operation, check the push button start system. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON>LIST>POWER SUPPLY SWITCHING SYSTEM .