PARKING SENSOR CONTROL MODULE INSPECTION

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1. Remove the parking sensor control module with the connector connected. (See PARKING SENSOR CONTROL MODULE REMOVAL/INSTALLATION.)

2. Measure the voltage at each terminal is as indicated in the Terminal Voltage Tables.

• If the voltage is not as specified in the Terminal Voltage Table, inspect the parts under “Inspection item (s)”.

― If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, replace the parking sensor control module.

Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measured item

Test condition

Voltage (V)

Inspection item

A

Ultrasonic sensor (back sensor (left))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (back sensor (left))

•  Related wiring harnesses

B

—

—

—

—

—

—

C

Ultrasonic sensor (back sensor (right))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (back sensor (right))

•  Related wiring harnesses

D

—

—

—

—

—

—

E

Ultrasonic sensor (rear corner sensor (left))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (rear corner sensor (left))

•  Related wiring harnesses

F

—

—

—

—

—

—

G

Ultrasonic sensor (rear corner sensor (right))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (rear corner sensor (right))

•  Related wiring harnesses

H

Ultrasonic sensor GND (rear corner/back sensor)

Ultrasonic sensor

Voltage

Under any condition

1.0 or less

•  Ultrasonic sensor GND (rear corner/back sensor)

•  Related wiring harnesses

•  Parking sensor control module terminal Q

I

Ultrasonic sensor (front corner sensor (left))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (front corner sensor (left))

•  Related wiring harnesses

J

Ultrasonic sensor GND (front corner sensor (left))

Ultrasonic sensor

Voltage

Under any condition

1.0 or less

•  Ultrasonic sensor GND (front corner sensor (left))

•  Related wiring harnesses

•  Parking sensor control module terminal Q

K

Ultrasonic sensor (front sensor (left))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (front sensor (left))

•  Related wiring harnesses

L

Ultrasonic sensor GND (front sensor (left))

Ultrasonic sensor

Voltage

Under any condition

1.0 or less

•  Ultrasonic sensor GND (front sensor (left))

•  Related wiring harnesses

•  Parking sensor control module terminal Q

M

Ultrasonic sensor (front sensor (right))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (front sensor (right))

•  Related wiring harnesses

N

Ultrasonic sensor GND (front sensor (right))

Ultrasonic sensor

Voltage

Under any condition

1.0 or less

•  Ultrasonic sensor GND (front sensor (right))

•  Related wiring harnesses

•  Parking sensor control module terminal Q

O

Ultrasonic sensor (front corner sensor (right))

Ultrasonic sensor

Wave profile

(See Generated Pulse)

•  Ultrasonic sensor (front corner sensor (right))

•  Related wiring harnesses

P

Ultrasonic sensor GND (front corner sensor (right))

Ultrasonic sensor

Voltage

Under any condition

1.0 or less

•  Ultrasonic sensor GND (front corner sensor (right))

•  Related wiring harnesses

•  Parking sensor control module terminal Q

Q

GND

Body ground

Voltage

Under any condition

1.0 or less

Related wiring harnesses

R

—

—

—

—

—

—

S

—

—

—

—

—

—

T

—

—

—

—

—

—

U

IG

Parking sensor switch

Voltage

Switch the ignition to ON

Parking sensor switch ON

B+

•  Parking sensor switch

•  Related wiring harnesses

Parking sensor switch OFF

1.0 or less

V

—

—

—

—

—

—

W

R position

Back-up light switch

Voltage

Switch the ignition to ON and parking sensor switch ON

Shift lever is in R position

6.0 or more

•  Back-up light switch

•  BCM

•  Related wiring harnesses

Shift lever is in position other than R

2.0 or less

X

—

—

—

—

—

—

Y

Vehicle speed

Instrument cluster

Wave profile

Rectangular wave pattern is displayed while driving

Speed signal is input: ON

2.0 or less

•  Instrument cluster

•  Related wiring harnesses

Speed signal is not input: OFF

Open or 5.0 or more

Z

Parking sensor buzzer (rear)

Parking sensor buzzer (rear)

Voltage

Switch the ignition to ON and parking sensor switch ON

Parking sensor switch ON and buzzer stopped

B+

•  Parking sensor buzzer (rear)

•  Related wiring harnesses

Parking sensor switch ON and buzzer sounding

1.0 or less

AA

Parking brake switch

Parking brake switch

Voltage

Switch the ignition to ON and parking sensor switch ON

Parking brake is activated

2.0 or less

•  Parking brake switch

•  Related wiring harnesses

Parking brake is not activated

5.0 or more

AB

Indicator

Parking sensor switch

Voltage

Switch the ignition to ON

Parking sensor switch is ON and parking sensor indicator light is not illuminated

B+

•  Parking sensor switch

•  Related wiring harnesses

Parking sensor switch is ON and parking sensor indicator light is illuminated

1.0 or less

Parking sensor switch is OFF

1.0 or less

AC

Windshield washer switch

Windshield washer switch

Voltage

Switch the ignition to ON and parking sensor switch ON

Windshield washer switch is OFF

5.0 or more

•  Windshield washer switch

•  Related wiring harnesses

Windshield washer switch is ON

2.0 or less

AD*¹

Trailer

Trailer accessory

Voltage

Switch the ignition to ON and parking sensor switch ON

Install the trailer accessory

2.0 or less

•  Trailer accessory

•  Related wiring harnesses

Remove the trailer accessory

5.0 or more

AE

Headlight

Light switch

Voltage

Switch the ignition to ON and parking sensor switch ON

Light switch is OFF

5.0 or more

•  Light switch

•  Related wiring harnesses

Light switch is ON

2.0 or less

AF*¹

Tow bar

Tow bar

Voltage

Switch the ignition to ON and parking sensor switch ON

Install the tow bar

2.0 or less

•  Tow bar

•  Related wiring harnesses

Remove the tow bar

5.0 or more

Terminal	Signal name	Connected to	Measured item	Test condition	Voltage (V)	Inspection item
A	Ultrasonic sensor (back sensor (left))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (back sensor (left)) • Related wiring harnesses
B	—	—	—	—	—	—
C	Ultrasonic sensor (back sensor (right))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (back sensor (right)) • Related wiring harnesses
D	—	—	—	—	—	—
E	Ultrasonic sensor (rear corner sensor (left))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (rear corner sensor (left)) • Related wiring harnesses
F	—	—	—	—	—	—
G	Ultrasonic sensor (rear corner sensor (right))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (rear corner sensor (right)) • Related wiring harnesses
H	Ultrasonic sensor GND (rear corner/back sensor)	Ultrasonic sensor	Voltage	Under any condition	1.0 or less	• Ultrasonic sensor GND (rear corner/back sensor) • Related wiring harnesses • Parking sensor control module terminal Q
I	Ultrasonic sensor (front corner sensor (left))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (front corner sensor (left)) • Related wiring harnesses
J	Ultrasonic sensor GND (front corner sensor (left))	Ultrasonic sensor	Voltage	Under any condition	1.0 or less	• Ultrasonic sensor GND (front corner sensor (left)) • Related wiring harnesses • Parking sensor control module terminal Q
K	Ultrasonic sensor (front sensor (left))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (front sensor (left)) • Related wiring harnesses
L	Ultrasonic sensor GND (front sensor (left))	Ultrasonic sensor	Voltage	Under any condition	1.0 or less	• Ultrasonic sensor GND (front sensor (left)) • Related wiring harnesses • Parking sensor control module terminal Q
M	Ultrasonic sensor (front sensor (right))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (front sensor (right)) • Related wiring harnesses
N	Ultrasonic sensor GND (front sensor (right))	Ultrasonic sensor	Voltage	Under any condition	1.0 or less	• Ultrasonic sensor GND (front sensor (right)) • Related wiring harnesses • Parking sensor control module terminal Q
O	Ultrasonic sensor (front corner sensor (right))	Ultrasonic sensor	Wave profile	(See Generated Pulse)	• Ultrasonic sensor (front corner sensor (right)) • Related wiring harnesses
P	Ultrasonic sensor GND (front corner sensor (right))	Ultrasonic sensor	Voltage	Under any condition	1.0 or less	• Ultrasonic sensor GND (front corner sensor (right)) • Related wiring harnesses • Parking sensor control module terminal Q
Q	GND	Body ground	Voltage	Under any condition	1.0 or less	Related wiring harnesses
R	—	—	—	—	—	—
S	—	—	—	—	—	—
T	—	—	—	—	—	—
U	IG	Parking sensor switch	Voltage	Switch the ignition to ON	Parking sensor switch ON	B+	• Parking sensor switch • Related wiring harnesses
Parking sensor switch OFF	1.0 or less
V	—	—	—	—	—	—
W	R position	Back-up light switch	Voltage	Switch the ignition to ON and parking sensor switch ON	Shift lever is in R position	6.0 or more	• Back-up light switch • BCM • Related wiring harnesses
Shift lever is in position other than R	2.0 or less
X	—	—	—	—	—	—
Y	Vehicle speed	Instrument cluster	Wave profile	Rectangular wave pattern is displayed while driving	Speed signal is input: ON	2.0 or less	• Instrument cluster • Related wiring harnesses
Speed signal is not input: OFF	Open or 5.0 or more
Z	Parking sensor buzzer (rear)	Parking sensor buzzer (rear)	Voltage	Switch the ignition to ON and parking sensor switch ON	Parking sensor switch ON and buzzer stopped	B+	• Parking sensor buzzer (rear) • Related wiring harnesses
Parking sensor switch ON and buzzer sounding	1.0 or less
AA	Parking brake switch	Parking brake switch	Voltage	Switch the ignition to ON and parking sensor switch ON	Parking brake is activated	2.0 or less	• Parking brake switch • Related wiring harnesses
Parking brake is not activated	5.0 or more
AB	Indicator	Parking sensor switch	Voltage	Switch the ignition to ON	Parking sensor switch is ON and parking sensor indicator light is not illuminated	B+	• Parking sensor switch • Related wiring harnesses
Parking sensor switch is ON and parking sensor indicator light is illuminated	1.0 or less
Parking sensor switch is OFF	1.0 or less
AC	Windshield washer switch	Windshield washer switch	Voltage	Switch the ignition to ON and parking sensor switch ON	Windshield washer switch is OFF	5.0 or more	• Windshield washer switch • Related wiring harnesses
Windshield washer switch is ON	2.0 or less
AD*¹	Trailer	Trailer accessory	Voltage	Switch the ignition to ON and parking sensor switch ON	Install the trailer accessory	2.0 or less	• Trailer accessory • Related wiring harnesses
Remove the trailer accessory	5.0 or more
AE	Headlight	Light switch	Voltage	Switch the ignition to ON and parking sensor switch ON	Light switch is OFF	5.0 or more	• Light switch • Related wiring harnesses
Light switch is ON	2.0 or less
AF*¹	Tow bar	Tow bar	Voltage	Switch the ignition to ON and parking sensor switch ON	Install the tow bar	2.0 or less	• Tow bar • Related wiring harnesses
Remove the tow bar	5.0 or more

*1 :Dealer option only

Generated Pulse

• Terminal:

― A—Q

― C—Q

― E—Q

― G—Q

― I—Q

― K—Q

― M—Q

― O—Q

• Oscilloscope setting:

― 2 V/DIV (Y), 20 ms/DIV (X), DC range

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• Test condition

—:Does not operate

Ignition	Parking sensor switch	Parking brake lever	Shift lever position	Vehicle speed	Terminal
Ignition	Parking sensor switch	Parking brake lever	Shift lever position	Vehicle speed	Front corner sensor (right)	Front corner sensor (left)	Front sensor (right)	Front sensor (left)	Rear corner sensor (right)	Rear corner sensor (left)	Back sensor (right)	Back sensor (left)
ON	ON	OFF	Except R position	0—15 km/h {0—9.3 mph} or less	O—Q	I—Q	M—Q	K—Q	—	—	—	—
ON	ON	OFF	R position	0—15 km/h {0—9.3 mph} or less	O—Q	I—Q	—	—	G—Q	E—Q	C—Q	A—Q