Check Intelligent Key Warning Buzzer (Front of Vehicle)

1. Turn ignition switch OFF.
2. Disconnect Intelligent Key warning buzzer (front of vehicle) connector.
3. Check voltage between Intelligent Key warning buzzer (front of vehicle) harness connector E26 terminal 1 and ground.

   1 - Ground : Battery voltage 

OK or NG 

OK: GO TO 2.

NG: Repair or replace Intelligent Key warning buzzer (front of vehicle) power supply circuit.

Fig 1: Checking Intelligent Key Warning Buzzer (Front Of Vehicle) Power Supply Circuit

1. Disconnect Intelligent Key unit connector.
2. Check continuity between Intelligent Key unit harness connector M42 (A) terminal 4 and Intelligent Key warning buzzer (front of vehicle) harness connector E26 (B) terminal 3.

   4 - 3 : Continuity should exist. 

3. Check continuity between Intelligent Key warning buzzer (front of vehicle) harness connector E26 (B) terminal 3 and ground.

   3 - Ground : Continuity should not exist. 

OK or NG 

OK: GO TO 3.

NG: Repair or replace harness between Intelligent Key warning buzzer (front of vehicle) and Intelligent Key unit.

Fig 2: Checking Intelligent Key Warning Buzzer (Front Of Vehicle) Circuit

Connect battery power supply to Intelligent Key warning buzzer (front of vehicle) harness connector E26 terminals 1 and 3, and check the operation.

1 (BAT+) - 3 (BAT-) : The buzzer sounds 

OK or NG 

OK: Intelligent Key warning buzzer (front of vehicle) is OK.

NG: Replace Intelligent Key warning buzzer (front of vehicle).

Fig 3: Checking Intelligent Key Warning Buzzer (Front Of Vehicle) Operation