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Check Keyless Transmitter Battery And Function

CAUTION: Be sure to reset keyless transmitter of other vehicles registered to the inspection target vehicle, and vehicles to which keyless transmitters were registered for inspection, to the condition before performing the inspection. (Re-register the keyless transmitters.)
DIAGNOSIS PROCEDURE CHART

Step Check Yes No
1 CHECK KEYLESS TRANSMITTER BATTERY. 
  1. Remove the battery from the keyless transmitter. Ref. to REMOVAL , Transmitter.
  2. Check the battery voltage. Ref. to INSPECTION , Transmitter.
Is the voltage 2.5 V or more? Go to step 2.  Replace the keyless transmitter battery. Ref. to TRANSMITTER .
2 CHECK KEYLESS TRANSMITTER. 
Register the keyless transmitter which operates normally on other vehicles to the inspection target vehicle. Ref. to REGISTRATION OF KEYLESS TRANSMITTER WITH SUBARU SELECT MONITOR , REPLACEMENT, Transmitter.
  1. Close all the doors and rear gate of inspection target vehicle.
  2. Using the keyless transmitter, lock and unlock the doors and rear gate of vehicle.
Can the check vehicle be locked and unlocked properly? Go to step 3.  Due to vehicle malfunction, continue the keyless entry system diagnosis.
3 CHECK KEYLESS TRANSMITTER. 
Register the keyless transmitter of the inspected vehicle to another vehicle whose keyless system operates normally. Ref. to REGISTRATION OF KEYLESS TRANSMITTER WITH SUBARU SELECT MONITOR , REPLACEMENT, Transmitter.
Is the keyless transmitter registered correctly? Go to step 4.  Replace the transmitter. Ref. to REGISTRATION OF KEYLESS TRANSMITTER WITH SUBARU SELECT MONITOR , REPLACEMENT, Transmitter.
4 CHECK KEYLESS TRANSMITTER. 
Check the registered keyless transmitter.
  1. Close all the doors and rear gate of the vehicle which keyless system operates normally.
  2. Using the keyless transmitter, lock and unlock the doors and rear gate of vehicle.
Does the vehicle operate lock and unlock normally? The keyless transmitter is OK. Replace the transmitter. Ref. to REGISTRATION OF KEYLESS TRANSMITTER WITH SUBARU SELECT MONITOR , REPLACEMENT, Transmitter.