2001 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE

Transmitter Battery

NOTE: To prevent static electricity damage to transmitter printed circuit board, touch steel area of building or chassis frame with hand to discharge static electricity carried on body or clothes before disassembling transmitter.
  1. Remove battery from transmitter. Measure voltage. Battery discharge occurs during measurement. Complete measurement within 5 seconds. During battery voltage measurement, if voltage drops more than 1.8 volts during 3 second period, a weak battery is indicated. Replace battery. If voltage is greater than 2 volts, go to next step.
  2. Press either LOCK/ARM or UNLOCK/DISARM button 6 times to synchronize with keyless entry control module. Press LOCK/ARM button. If LED blinks one time, go to next step. If LED does not blink one time, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  3. Keep LOCK/ARM button pressed. If LED blinks one time and then turns on, go to next step. If LED does not blink one time and then turn on, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  4. Press UNLOCK/DISARM button. If LED blinks one time, go to next step. If LED does not blink one time, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  5. Keep UNLOCK/DISARM button pressed. If LED blinks 2 times, go to next step. If LED does not blink 2 times, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  6. Perform lock and unlock function of power door lock with transmitter. If function is normal, go to next step. If function is not normal, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  7. Press either LOCK/ARM or UNLOCK/DISARM button. If horn signal chirps, go to next step. If horn signal does not chirp, keep both LOCK/ARM and UNLOCK/DISARM buttons pressed for more than 1.5 seconds, then go to next step.
  8. Keep both LOCK/ARM and UNLOCK/DISARM buttons pressed for more than 1.5 seconds. If horn signal chirps 2 times, go to next step. If horn signal does not chirp 2 times, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  9. Press LOCK/ARM or UNLOCK/DISARM button. If horn signal chirps, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION. If horn signal does not chirp, go to next step.
  10. Keep both LOCK/ARM and UNLOCK/DISARM buttons pressed for more than 1.5 seconds. If horn signal chirps one time, go to next step. If horn signal does not chirp one time, replace transmitter. See KEYLESS TRANSMITTER  under REMOVAL & INSTALLATION.
  11. Check for an unchecked transmitter. If an unchecked transmitter exists, go to step  1 . If all transmitters have been checked, go to next step.
  12. Remove and visually check fuse No. 3 located in fuse box. If fuse No. 3 is blown, replace fuse. If fuse is not blown, check power supply circuit. See POWER SUPPLY CIRCUIT  under CIRCUIT TESTS.
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:

  • • 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.
  • • You are not confident in the next step or safety outcome.