Keyless Buzzer Circuit Troubleshooting
- Open wire check (GND line)
-1. Turn the vehicle to the OFF (LOCK) mode.
-2. Disconnect the following connector.
Keyless buzzer 3P connector -3. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless buzzer 3P connector: disconnectedTest point 1 Keyless buzzer 3P connector (female terminals) No. 3: Test point 2 Body ground Is there 1.0 Ω or less?
YES
The GND wire is OK. Go to step 2.
NO
Repair an open or high resistance in the ground wire or poor ground (G505).
- Open wire check (SMART_BUZZER line)
-1. Disconnect the following connector.
Body control module connector E (24P) -2. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless buzzer 3P connector: disconnected
Body control module connector E (24P): disconnectedTest point 1 Body control module connector E (24P) No. 22 Test point 2 Keyless buzzer 3P connector (female terminals) No. 2: Is there 1.0 Ω or less?
YES
The SMART_BUZZER wire is not open. Go to step 3.
NO
Repair an open or high resistance in the wire.
- Shorted wire check (SMART_BUZZER line)
-1. Remove the jumper wire from the keyless buzzer 3P connector.
-2. Measure the resistance between test points 1 and 2.
Test condition Vehicle OFF (LOCK) mode
Keyless buzzer 3P connector: disconnected
Body control module connector E (24P): disconnectedTest point 1 Body control module connector E (24P) No. 22 Test point 2 Body ground Is there 1.0 MΩ or more?
YES
The SMART_BUZZER wire is OK. Go to step 4.
NO
Repair a short to ground in the wire.
- Keyless buzzer check (substitution)
-1. Substitute a known-good keyless buzzer .
-2. Check the keyless buzzer function.
Does the keyless buzzer sound?
YES
Replace the original keyless buzzer .
NO