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Check Keyless Buzzer

CHECKING KEYLESS BUZZER

Step Check Yes No
1 CHECK FUSE. 
Remove and check the fuse No. 2 (located in main fuse box).
Is the fuse blown out? Replace the fuse with a new one. Go to step 2. 
2 : CHECK KEYLESS BUZZER POWER SUPPLY. 
  1. Disconnect the connector from keyless buzzer.
  2. Measure the voltage between keyless buzzer harness connector and chassis ground.

Connector & terminal 
(F102) No. 2 (+) - Chassis ground (-): 
Is the voltage more than 10 V? Go to step 3.  Check the harness for open or short between fuse and keyless buzzer.
3 : CHECK HARNESS BETWEEN KEYLESS BUZZER AND KEYLESS ENTRY CONTROL UNIT. 
  1. Disconnect the connector from keyless entry control unit.
  2. Measure the resistance between keyless buzzer and keyless entry control unit.

Connector & terminal 
(F102) No. 1 - (B176) No. 16: 
Is the resistance less than 10 ohm? Go to step 4.  Repair the harness between keyless buzzer and keyless entry control unit.
4 : CHECK KEYLESS BUZZER. 
Make sure that the buzzer sounds when connecting battery positive terminal to No. 2 terminal of keyless buzzer connector and battery ground terminal to No. 1 terminal of keyless buzzer connector.
Does the buzzer sound? Replace the keyless entry control unit. Replace the keyless buzzer.