NO DETECTION SOUND/LOW VOLUME [PARKING SENSOR]
id0903z4829500
Description
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NO DETECTION SOUND/LOW VOLUME
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• Buzzer does not sound (parking sensor indicator illumination is normal) after turning the parking sensor switch/indicator on.
• The volume of the detection sound from the buzzer decreases.
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Possible Causes
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• Volume adjustment of buzzer is at minimum
• Buzzer circuit malfunction
Front
Rear
• Parking sensor buzzer malfunction
• Parking sensor control module malfunction
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Diagnostic Procedure
Step |
Inspection |
Action |
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---|---|---|---|
1
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VERIFY IF FRONT ULTRASONIC SENSOR IS EQUIPPED
• Is the vehicle equipped with front ultrasonic sensor?
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Yes
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Go to the next step.
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No
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Perform troubleshooting according to the SYSTEM DOES NOT OPERATE [PARKING SENSOR].
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2
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ADJUST BUZZER VOLUME
• Adjust the buzzer volume.
(See BEEP SOUND ADJUSTMENT.)
• Was the malfunction corrected?
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Yes
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Inspection completed (buzzer volume adjustment malfunction).
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No
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Go to the next step.
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3
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INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND PARKING SENSOR BUZZER FOR OPEN CIRCUIT
• Switch the ignition off.
• Disconnect the negative battery cable.
• Disconnect the connectors of the parking sensor buzzer and parking sensor control module.
• Inspect for continuity between the following wiring harnesses:
Front
Rear
• Is there continuity?
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Yes
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Go to the next step.
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No
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• Refer to the wiring diagram and verify whether or not there is a mid-connector between the following wiring harnesses:
Front
Rear
If there is a mid-connector
If there is no mid-connector
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4
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INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND PARKING SENSOR BUZZER FOR SHORT TO GROUND
• Inspect for continuity between the following wiring harnesses:
Front
Rear
• Is there continuity?
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Yes
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• Refer to the wiring diagram and verify whether or not there is a mid-connector between the following wiring harnesses:
Front
Rear
If there is a mid-connector
If there is no mid-connector
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No
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Go to the next step.
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5
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DETERMINE IF MALFUNCTION CAUSE IS PARKING SENSOR BUZZER OR PARKING SENSOR CONTROL MODULE
• Inspect the parking sensor buzzer.
• Is the parking sensor buzzer normal?
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Yes
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Replace the parking sensor control module.
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No
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Replace the parking sensor buzzer.
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