No.2 MALFUNCTION DETECTION SOUND ACTIVATED [PARKING SENSOR]

id0903z4886400

2

Malfunction detection sound activated
DESCRIPTION
Malfunction detection sound activates (5 times consecutively) after parking sensor switch is turned on.
POSSIBLE CAUSES
•  Ultrasonic sensor (Front) malfunction.
―  Ultrasonic sensor soiled, damaged (scratches, deformation), frozen (iced)
―  Ultrasonic sensor (Front) malfunction
•  Ultrasonic sensor (Rear/Back) malfunction.
―  Ultrasonic sensor soiled, damaged (scratches, deformation), frozen (iced)
―  Ultrasonic sensor (Rear/Back) malfunction
•  Wiring harness malfunction.
―  Ultrasonic sensor (Front) sensor signal malfunction
•  Open or short circuit in parking sensor control module terminal O and front corner sensor (RH) terminal B
•  Open or short circuit in parking sensor control module terminal I and front corner sensor (LH) terminal B
•  Open or short circuit in parking sensor control module terminal M and front sensor (RH) terminal B
•  Open or short circuit in parking sensor control module terminal K and front sensor (LH) terminal B
―  Ultrasonic sensor (Front) sensor ground malfunction
•  Open or short circuit in parking sensor control module terminal P and front corner sensor (RH) terminal A
•  Open or short circuit in parking sensor control module terminal J and front corner sensor (LH) terminal A
•  Open or short circuit in parking sensor control module terminal N and front sensor (RH) terminal A
•  Open or short circuit in parking sensor control module terminal L and front sensor (LH) terminal A
―  Ultrasonic sensor (Rear/Back) signal malfunction
•  Open or short circuit in parking sensor control module terminal G and rear corner sensor (RH) terminal B
•  Open or short circuit in parking sensor control module terminal E and rear corner sensor (LH) terminal B
•  Open or short circuit in parking sensor control module terminal C and back sensor (RH) terminal B
•  Open or short circuit in parking sensor control module terminal A and back sensor (LH) terminal B
―  Ultrasonic sensor (Rear/Back) ground malfunction
•  Open or short circuit in parking sensor control module terminal H and back sensor terminal A
•  Parking sensor control module malfunction.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
VERIFY CONDITION OF EACH SENSOR
•  Visually inspect the condition of each ultrasonic sensor.
•  Is a sensor soiled, damaged (scratches, deformation), or frozen (iced)?
Yes
If there is any dirt or ice adhesion:
•  Remove any dirt or ice and verify if the malfunction recurs.
•  If the malfunction recurs, go to the next step.
If there is any damage:
•  Replace the sensor.
No
Go to the next step.
2
SPECIFY MALFUNCTIONING SYSTEM
•  Inspect the terminal voltage of the parking sensor control module.
•  Is the voltage normal?
Yes
Replace the parking sensor control module.
(See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)
No
Go to the next step.
3
CONNECTOR CONNECTION CONDITION INSPECTION FOR MALFUNCTIONING SYSTEM
•  Verify the pin connection condition of the wiring harness between the parking sensor control module and short wiring harness connector related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Parking sensor control module terminal O and short connector (8-pin) terminal A
―  Parking sensor control module terminal P and short connector (8-pin) terminal B
Front corner sensor (LH)
―  Parking sensor control module terminal I and short connector (8-pin) terminal G
―  Parking sensor control module terminal J and short connector (8-pin) terminal H
Front sensor (RH)
―  Parking sensor control module terminal M and short connector (8-pin) terminal C
―  Parking sensor control module terminal N and short connector (8-pin) terminal D
Front sensor (LH)
―  Parking sensor control module terminal K and short connector (8-pin) terminal E
―  Parking sensor control module terminal L and short connector (8-pin) terminal F
Rear corner sensor (RH)
―  Parking sensor control module terminal G and short connector (8-pin) terminal C
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Rear corner sensor (LH)
―  Parking sensor control module terminal E and short connector (8-pin) terminal E
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Back sensor (RH)
―  Parking sensor control module terminal C and short connector (8-pin) terminal F
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Back sensor (LH)
―  Parking sensor control module terminal A and short connector (8-pin) terminal G
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
•  Are the connections normal?
Yes
Go to the next step.
No
Repair or replace the malfunctioning part.
4
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND SHORT CONNECTOR
•  Verify the continuity between the following vehicle side wiring harness connectors related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Parking sensor control module terminal O and short connector (8-pin) terminal A
―  Parking sensor control module terminal P and short connector (8-pin) terminal B
Front corner sensor (LH)
―  Parking sensor control module terminal I and short connector (8-pin) terminal G
―  Parking sensor control module terminal J and short connector (8-pin) terminal H
Front sensor (RH)
―  Parking sensor control module terminal M and short connector (8-pin) terminal C
―  Parking sensor control module terminal N and short connector (8-pin) terminal D
Front sensor (LH)
―  Parking sensor control module terminal K and short connector (8-pin) terminal E
―  Parking sensor control module terminal L and short connector (8-pin) terminal F
Rear corner sensor (RH)
―  Parking sensor control module terminal G and short connector (8-pin) terminal C
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Rear corner sensor (LH)
―  Parking sensor control module terminal E and short connector (8-pin) terminal E
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Back sensor (RH)
―  Parking sensor control module terminal C and short connector (8-pin) terminal F
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
Back sensor (LH)
―  Parking sensor control module terminal A and short connector (8-pin) terminal G
―  Parking sensor control module terminal H and short connector (8-pin) terminal D
•  Is there continuity?
Yes
Go to the next step.
No
Repair for an open circuit in the wiring harness.
5
VERIFY IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND SHORT CONNECTOR
•  Verify the continuity between the following vehicle side wiring harness connectors and body ground related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Parking sensor control module terminal O
Front corner sensor (LH)
―  Parking sensor control module terminal I
Front sensor (RH)
―  Parking sensor control module terminal M
Front sensor (LH)
―  Parking sensor control module terminal K
Rear corner sensor (RH)
―  Parking sensor control module terminal G
Rear corner sensor (LH)
―  Parking sensor control module terminal E
Back sensor (RH)
―  Parking sensor control module terminal C
Back sensor (LH)
―  Parking sensor control module terminal A
•  Is there continuity?
Yes
Repair for a short to the wiring harness ground.
No
Go to the next step.
6
VERIFY IF MALFUNCTION CAUSE IS SHORT TO POWER SUPPLY IN WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND SHORT CONNECTOR
•  Measure the terminal voltage between the following vehicle side wiring harness connectors related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Parking sensor control module terminal O
―  Parking sensor control module terminal P
Front corner sensor (LH)
―  Parking sensor control module terminal I
―  Parking sensor control module terminal J
Front sensor (RH)
―  Parking sensor control module terminal M
―  Parking sensor control module terminal N
Front sensor (LH)
―  Parking sensor control module terminal K
―  Parking sensor control module terminal L
Rear corner sensor (RH)
―  Parking sensor control module terminal G
―  Parking sensor control module terminal H
Rear corner sensor (LH)
―  Parking sensor control module terminal E
―  Parking sensor control module terminal H
Back sensor (RH)
―  Parking sensor control module terminal C
―  Parking sensor control module terminal H
Back sensor (LH)
―  Parking sensor control module terminal A
―  Parking sensor control module terminal H
•  Is the voltage 2 V or more?
Yes
Repair for a short to the wiring harness power supply.
No
Go to the next step.
7
MALFUNCTIONING SENSOR TERMINAL CONNECTION CONDITION INSPECTION
•  Verify the pin connection condition related to the ultrasonic sensor of the system malfunctioning in Step 2.
•  Are the connections normal?
Yes
Go to the next step.
No
Repair or replace the malfunction location.
8
VERIFY IF MALFUNCTION CAUSE IS OPEN CIRCUIT IN WIRING HARNESS BETWEEN SHORT CONNECTOR AND ULTRASONIC SENSOR
•  Verify the continuity between the following vehicle side wiring harness connectors related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Front corner sensor terminal B and short connector (8-pin) terminal A
―  Front corner sensor terminal A and short connector (8-pin) terminal B
Front corner sensor (LH)
―  Front corner sensor terminal B and short connector (8-pin) terminal G
―  Front corner sensor terminal A and short connector (8-pin) terminal H
Front sensor (RH)
―  Front sensor terminal B and short connector (8-pin) terminal C
―  Front sensor terminal A and short connector (8-pin) terminal D
Front sensor (LH)
―  Front sensor terminal B and short connector (8-pin) terminal E
―  Front sensor terminal A and short connector (8-pin) terminal F
Rear corner sensor (RH)
―  Rear corner sensor terminal B and short connector (8-pin) terminal C
―  Rear corner sensor terminal A and short connector (8-pin) terminal D
Rear corner sensor (LH)
―  Rear corner sensor terminal B and short connector (8-pin) terminal E
―  Rear corner sensor terminal A and short connector (8-pin) terminal D
Back sensor (RH)
―  Back sensor terminal B and short connector (8-pin) terminal F
―  Back sensor terminal A and short connector (8-pin) terminal D
Back sensor (LH)
―  Back sensor terminal B and short connector (8-pin) terminal G
―  Back sensor terminal A and short connector (8-pin) terminal D
•  Is there continuity?
Yes
Go to the next step.
No
Repair for an open circuit in the wiring harness.
9
VERIFY IF MALFUNCTION CAUSE IS SHORT TO GROUND IN WIRING HARNESS BETWEEN SHORT CONNECTOR AND ULTRASONIC SENSOR
•  Verify the continuity between the following vehicle side wiring harness connectors and body ground related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Short connector (8-pin) terminal A
Front corner sensor (LH)
―  Short connector (8-pin) terminal G
Front sensor (RH)
―  Short connector (8-pin) terminal C
Front sensor (LH)
―  Short connector (8-pin) terminal E
Rear corner sensor (RH)
―  Short connector (8-pin) terminal C
Rear corner sensor (LH)
―  Short connector (8-pin) terminal E
Back sensor (RH)
―  Short connector (8-pin) terminal F
Back sensor (LH)
―  Short connector (8-pin) terminal G
•  Is there continuity?
Yes
Repair for a short to the wiring harness ground.
No
Go to the next step.
10
VERIFY IF MALFUNCTION CAUSE IS SHORT TO POWER SUPPLY IN WIRING HARNESS BETWEEN SHORT CONNECTOR AND ULTRASONIC SENSOR
•  Measure the voltage between the following vehicle side wiring harness connectors related to the system malfunctioning in Step 2.
Front corner sensor (RH)
―  Short connector (8-pin) terminal A
―  Short connector (8-pin) terminal B
Front corner sensor (LH)
―  Short connector (8-pin) terminal G
―  Short connector (8-pin) terminal H
Front sensor (RH)
―  Short connector (8-pin) terminal C
―  Short connector (8-pin) terminal D
Front sensor (LH)
―  Short connector (8-pin) terminal E
―  Short connector (8-pin) terminal F
Rear corner sensor (RH)
―  Short connector (8-pin) terminal C
―  Short connector (8-pin) terminal D
Rear corner sensor (LH)
―  Short connector (8-pin) terminal E
―  Short connector (8-pin) terminal D
Back sensor (RH)
―  Short connector (8-pin) terminal F
―  Short connector (8-pin) terminal D
Back sensor (LH)
―  Short connector (8-pin) terminal G
―  Short connector (8-pin) terminal D
•  Is the voltage 2 V or more?
Yes
Repair for a short to the wiring harness power supply.
No
Go to the next step.
11
DETERMINE IF MALFUNCTION CAUSE IS ULTRASONIC SENSOR OR PARKING SENSOR CONTROL MODULE
•  Replace the ultrasonic sensor in the system in which the malfunction occurred in Step 2.
•  Verify the malfunction symptom.
•  Has the malfunction symptom been eliminated?
Yes
Troubleshooting completed. Ultrasonic sensor malfunction. Replace the ultrasonic sensor.
(See ULTRASONIC SENSOR REMOVAL/INSTALLATION.)
No
Replace the parking sensor control module.
(See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)