MALFUNCTION DETECTION SOUND ACTIVATED [PARKING SENSOR]

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Note

• If there is any vehicle malfunction complaint lodged by a customer, perform FOREWORD [PARKING SENSOR] malfunction diagnosis according to the troubleshooting procedure.

Description

• Buzzer sounds after turning the parking sensor switch/indicator on.

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Possible malfunction

• Front ultrasonic sensor, front corner ultrasonic sensor, rear ultrasonic sensor, and rear corner ultrasonic sensor malfunction

― Dirt, damage (scratch, deformation), or freezing of sensor

― Connector connection malfunction

― Sensor malfunction

• Wiring harness malfunction

• Front ultrasonic sensor and front corner ultrasonic sensor signal malfunction

― Open circuit or short to ground in wiring harness between parking sensor control module terminal I and front corner ultrasonic sensor (LH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal O and front corner ultrasonic sensor (RH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal K and front ultrasonic sensor (LH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal M and front ultrasonic sensor (RH) terminal B

• Front ultrasonic sensor and front corner ultrasonic sensor ground system malfunction

L.H.D.

― Open circuit in wiring harness between parking sensor control module terminal J and terminal A for each sensor

R.H.D.

― Open circuit or short to ground in wiring harness between parking sensor control module terminal J and front corner ultrasonic sensor (LH) terminal A

― Open circuit or short to ground in wiring harness between parking sensor control module terminal P and front corner ultrasonic sensor (RH) terminal A

― Open circuit or short to ground in wiring harness between parking sensor control module terminal L and front ultrasonic sensor (LH) terminal A

― Open circuit or short to ground in wiring harness between parking sensor control module terminal N and front ultrasonic sensor (RH) terminal A

• Rear ultrasonic sensor and rear corner ultrasonic sensor signal malfunction

― Open circuit or short to ground in wiring harness between parking sensor control module terminal E and rear corner ultrasonic sensor (LH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal G and rear corner ultrasonic sensor (RH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal A and rear ultrasonic sensor (LH) terminal B

― Open circuit or short to ground in wiring harness between parking sensor control module terminal C and rear ultrasonic sensor (RH) terminal B

• Rear ultrasonic sensor and rear corner ultrasonic sensor ground system malfunction

― Open circuit in wiring harness between parking sensor control module terminal B and terminal A for each sensor

• Parking sensor control module malfunction

Diagnostic Procedure

Step

Inspection

Action

1

IDENTIFY MALFUNCTION LOCATION

•  Verify that the buzzer sounds from the parking sensor buzzer on either the front or rear.

•  Does the buzzer sound from the front parking sensor buzzer?

Yes

Go to the next step.

No

Go to Step 7.

2

VERIFY FRONT ULTRASONIC SENSOR CONDITION

•  Visually inspect the front ultrasonic sensor condition.

•  Is there any dirt, damage (scratch, deformation), and freezing on the sensor?

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.
(See FRONT ULTRASONIC SENSOR REMOVAL/INSTALLATION.)

No

Go to the next step.

3

INSPECT CONNECTOR CONNECTION CONDITION

•  Verify the connector connection conditions of the parking sensor control module, front ultrasonic sensor short-cord, and front ultrasonic sensor.

•  Are the connection conditions normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part.

4

INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND FRONT ULTRASONIC SENSOR FOR OPEN CIRCUIT

•  Switch the ignition off (LOCK).

•  Disconnect the negative battery cable.
(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].)

(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)

•  Disconnect the connectors of the front ultrasonic sensor and parking sensor control module.

•  Inspect for continuity between the following wiring harnesses:

L.H.D.

―  Parking sensor control module terminal I and front corner ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal O and front corner ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal K and front ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal M and front ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal J and terminal A for each sensor

R.H.D.

―  Parking sensor control module terminal I and front corner ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal O and front corner ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal K and front ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal M and front ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal J and front corner ultrasonic sensor (LH) terminal A

―  Parking sensor control module terminal P and front corner ultrasonic sensor (RH) terminal A

―  Parking sensor control module terminal L and front ultrasonic sensor (LH) terminal A

―  Parking sensor control module terminal N and front ultrasonic sensor (RH) terminal A

•  Is there continuity?

Yes

Go to the next step.

No

•  Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and front ultrasonic sensor.

If there is a mid-connector

―  Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a open circuit.

―  Repair or replace the wiring harness which has a malfunction.

If there is no mid-connector

―  Repair or replace the wiring harness which has a malfunction.

5

INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND FRONT ULTRASONIC SENSOR FOR SHORT TO GROUND

•  Inspect for continuity between the following wiring harnesses:

―  Parking sensor control module terminal I and ground

―  Parking sensor control module terminal O and ground

―  Parking sensor control module terminal K and ground

―  Parking sensor control module terminal M and ground

•  Is there continuity?

Yes

•  Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and front ultrasonic sensor.

If there is a mid-connector

―  Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a short to ground.

―  Repair or replace the wiring harness which has a malfunction.

If there is no mid-connector

―  Repair or replace the wiring harness which has a malfunction.

No

Go to Step 10.

6

VERIFY REAR ULTRASONIC SENSOR CONDITION

•  Visually inspect the rear ultrasonic sensor condition.

•  Is there any dirt, damage (scratch, deformation), and freezing on the sensor?

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.
(See REAR ULTRASONIC SENSOR REMOVAL/INSTALLATION.)

No

Go to the next step.

7

INSPECT CONNECTOR CONNECTION CONDITION

•  Verify the connector connection conditions of the parking sensor control module, rear ultrasonic sensor short-cord, and rear ultrasonic sensor.

•  Are the connection conditions normal?

Yes

Go to the next step.

No

Repair or replace the malfunctioning part.

8

INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND REAR ULTRASONIC SENSOR FOR OPEN CIRCUIT

•  Switch the ignition off (LOCK).

•  Disconnect the connectors of the rear ultrasonic sensor and parking sensor control module.

•  Inspect for continuity between the following wiring harnesses:

―  Parking sensor control module terminal E and rear corner ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal G and rear corner ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal A and rear ultrasonic sensor (LH) terminal B

―  Parking sensor control module terminal C and rear ultrasonic sensor (RH) terminal B

―  Parking sensor control module terminal B and terminal A for each sensor

•  Is there continuity?

Yes

Go to the next step.

No

•  Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and rear ultrasonic sensor.

If there is a mid-connector

―  Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a open circuit.

―  Repair or replace the wiring harness which has a malfunction.

If there is no mid-connector

―  Repair or replace the wiring harness which has a malfunction.

9

INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND REAR ULTRASONIC SENSOR FOR SHORT TO GROUND

•  Inspect for continuity between the following wiring harnesses:

―  Parking sensor control module terminal E and ground

―  Parking sensor control module terminal G and ground

―  Parking sensor control module terminal A and ground

―  Parking sensor control module terminal C and ground

•  Is there continuity?

Yes

•  Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and rear ultrasonic sensor.

If there is a mid-connector

―  Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a short to ground.

―  Repair or replace the wiring harness which has a malfunction.

If there is no mid-connector

―  Repair or replace the wiring harness which has a malfunction.

No

Go to the next step.

10

DETERMINE IF MALFUNCTION CAUSE IS ULTRASONIC SENSOR OR PARKING SENSOR CONTROL MODULE

•  Reconnect all the disconnected connectors.

•  Connect the negative battery cable.
(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].)

(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].)

(See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].)

•  Switch the ignition ON (engine off or on).

•  Turn the parking sensor switch/indicator on.

•  Refer to the parking sensor control module inspection and verify the generated pulse for each sensor.
(See PARKING SENSOR CONTROL MODULE INSPECTION.)

•  Can the generated pulse be verified?

Yes

Replace the parking sensor control module.

(See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)

No

Replace the ultrasonic sensor.

(See FRONT ULTRASONIC SENSOR REMOVAL/INSTALLATION.)

(See REAR ULTRASONIC SENSOR REMOVAL/INSTALLATION.)

Step	Inspection		Action
1	IDENTIFY MALFUNCTION LOCATION • Verify that the buzzer sounds from the parking sensor buzzer on either the front or rear. • Does the buzzer sound from the front parking sensor buzzer?	Yes	Go to the next step.
1		No	Go to Step 7.
2	VERIFY FRONT ULTRASONIC SENSOR CONDITION • Visually inspect the front ultrasonic sensor condition. • Is there any dirt, damage (scratch, deformation), and freezing on the sensor?	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. (See FRONT ULTRASONIC SENSOR REMOVAL/INSTALLATION.)
2		No	Go to the next step.
3	INSPECT CONNECTOR CONNECTION CONDITION • Verify the connector connection conditions of the parking sensor control module, front ultrasonic sensor short-cord, and front ultrasonic sensor. • Are the connection conditions normal?	Yes	Go to the next step.
3		No	Repair or replace the malfunctioning part.
4	INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND FRONT ULTRASONIC SENSOR FOR OPEN CIRCUIT • Switch the ignition off (LOCK). • Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Disconnect the connectors of the front ultrasonic sensor and parking sensor control module. • Inspect for continuity between the following wiring harnesses: L.H.D. ― Parking sensor control module terminal I and front corner ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal O and front corner ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal K and front ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal M and front ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal J and terminal A for each sensor R.H.D. ― Parking sensor control module terminal I and front corner ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal O and front corner ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal K and front ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal M and front ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal J and front corner ultrasonic sensor (LH) terminal A ― Parking sensor control module terminal P and front corner ultrasonic sensor (RH) terminal A ― Parking sensor control module terminal L and front ultrasonic sensor (LH) terminal A ― Parking sensor control module terminal N and front ultrasonic sensor (RH) terminal A • Is there continuity?	Yes	Go to the next step.
4		No	• Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and front ultrasonic sensor. If there is a mid-connector ― Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a open circuit. ― Repair or replace the wiring harness which has a malfunction. If there is no mid-connector ― Repair or replace the wiring harness which has a malfunction.
5	INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND FRONT ULTRASONIC SENSOR FOR SHORT TO GROUND • Inspect for continuity between the following wiring harnesses: ― Parking sensor control module terminal I and ground ― Parking sensor control module terminal O and ground ― Parking sensor control module terminal K and ground ― Parking sensor control module terminal M and ground • Is there continuity?	Yes	• Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and front ultrasonic sensor. If there is a mid-connector ― Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a short to ground. ― Repair or replace the wiring harness which has a malfunction. If there is no mid-connector ― Repair or replace the wiring harness which has a malfunction.
5		No	Go to Step 10.
6	VERIFY REAR ULTRASONIC SENSOR CONDITION • Visually inspect the rear ultrasonic sensor condition. • Is there any dirt, damage (scratch, deformation), and freezing on the sensor?	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. (See REAR ULTRASONIC SENSOR REMOVAL/INSTALLATION.)
6		No	Go to the next step.
7	INSPECT CONNECTOR CONNECTION CONDITION • Verify the connector connection conditions of the parking sensor control module, rear ultrasonic sensor short-cord, and rear ultrasonic sensor. • Are the connection conditions normal?	Yes	Go to the next step.
7		No	Repair or replace the malfunctioning part.
8	INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND REAR ULTRASONIC SENSOR FOR OPEN CIRCUIT • Switch the ignition off (LOCK). • Disconnect the connectors of the rear ultrasonic sensor and parking sensor control module. • Inspect for continuity between the following wiring harnesses: ― Parking sensor control module terminal E and rear corner ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal G and rear corner ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal A and rear ultrasonic sensor (LH) terminal B ― Parking sensor control module terminal C and rear ultrasonic sensor (RH) terminal B ― Parking sensor control module terminal B and terminal A for each sensor • Is there continuity?	Yes	Go to the next step.
8		No	• Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and rear ultrasonic sensor. If there is a mid-connector ― Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a open circuit. ― Repair or replace the wiring harness which has a malfunction. If there is no mid-connector ― Repair or replace the wiring harness which has a malfunction.
9	INSPECT WIRING HARNESS BETWEEN PARKING SENSOR CONTROL MODULE AND REAR ULTRASONIC SENSOR FOR SHORT TO GROUND • Inspect for continuity between the following wiring harnesses: ― Parking sensor control module terminal E and ground ― Parking sensor control module terminal G and ground ― Parking sensor control module terminal A and ground ― Parking sensor control module terminal C and ground • Is there continuity?	Yes	• Refer to the wiring diagram and verify whether or not there is a mid-connector between the parking sensor control module and rear ultrasonic sensor. If there is a mid-connector ― Determine the malfunctioning part by inspecting the mid-connector and the terminal for corrosion, damage, or pin disconnection, and the mid-wiring harness for a short to ground. ― Repair or replace the wiring harness which has a malfunction. If there is no mid-connector ― Repair or replace the wiring harness which has a malfunction.
9		No	Go to the next step.
10	DETERMINE IF MALFUNCTION CAUSE IS ULTRASONIC SENSOR OR PARKING SENSOR CONTROL MODULE • Reconnect all the disconnected connectors. • Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 2.2].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5].) (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-stop)].) • Switch the ignition ON (engine off or on). • Turn the parking sensor switch/indicator on. • Refer to the parking sensor control module inspection and verify the generated pulse for each sensor. (See PARKING SENSOR CONTROL MODULE INSPECTION.) • Can the generated pulse be verified?	Yes	Replace the parking sensor control module. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)
10		No	Replace the ultrasonic sensor. (See FRONT ULTRASONIC SENSOR REMOVAL/INSTALLATION.) (See REAR ULTRASONIC SENSOR REMOVAL/INSTALLATION.)