2009 Subaru Outback F4-2.5L SOHCFACTORY OEM SERVICE PROCEDURE

Keyless Entry Transmitter Battery: Testing and Inspection

Transmitter

INSPECTION

1. TRANSMITTER BATTERY
Measure the voltage between the keyless transmitter battery (+) terminal and (-) terminal.

NOTE: Battery discharge occurs during the measurement. Complete the measurement within 5 seconds.

Factory service manual diagram





If NG, replace the battery. (Use CR1620 or equivalent.)
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.