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HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSANTI-THEFT SYSTEM - SECURITY AND LOCKSKEYLESS ACCESS WITH PUSH BUTTON START SYSTEMINSPECTIONPUSH BUTTON START SYSTEMIGNITION/ACC CHANGE FUNCTION CHECK
2016 Subaru Legacy 2.5i

Ignition/ACC change function check

2016 Subaru Legacy 2.5iSECTION Ignition/ACC change function check
  1. Check push button ignition switch function
    1. Check the change control through push button ignition switch, brake pedal operation, and shift position.
      Shift 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
      Other than P or N Released Repeat Ignition switch OFF → ACC ON → Ignition switch ON → ACC ON
      Other than P or N Released Engine running → ACC ON
      Other than P or N Depressed Ignition switch OFF → Ignition switch ON
      Other than P or N Depressed ACC ON → Ignition switch ON
      Other than P or N Depressed Engine running → ACC ON
    2. Check the changeover functions other than push button ignition switch operation.

      With ACC ON or the ignition switch ON, and the shift lever in "P" position, check that ACC is ON or Ignition switch is ON → Ignition switch is 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 POWER SUPPLY SWITCHING SYSTEM , INSPECTION, General Diagnostic Table. >
  2. Check power status display
    1. Check the power indicator display of the push button ignition switch.

      Indicator display

      Push button ignition switch status Indicator lighting status
      Ignition switch OFF (except for condition (1)) Light OFF
      ACC ON (except for condition (1)) Orange light
      Ignition switch ON (except for condition (1)) Orange light
      Engine start standby ((1)) Green light
      After engine is started Light OFF
      NOTE:
      (1) Key collation is normal, and the stop light switch (AT) is ON.
    2. If the inspection result indicates an improper operation, check the push button start system. < Ref. to POWER SUPPLY SWITCHING SYSTEM , INSPECTION, General Diagnostic Table. >
      NOTE: The indicator blinks if any of the following malfunctions are detected.
      Detected malfunction Indicator lighting status
      Steering lock stuck Green blinking
      Steering lock control module internal malfunction Orange blinking
      Keyless access control module internal malfunction Orange blinking
      Vehicle speed signal malfunction Orange blinking
RENDER: 1.0x

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

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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