POWER LIFTGATE (PLG) CONTROL MODULE INSPECTION

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1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2. Remove the following parts:

(1) Rear scuff plate (See REAR SCUFF PLATE REMOVAL/INSTALLATION.)

(2) Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION.)

(3) Trunk side pocket (See TRUNK SIDE POCKET REMOVAL/INSTALLATION.)

(4) Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION.)

3. Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

4. Verify that the voltages of each of the terminals are as indicated in the terminal voltage table (reference).

• If the voltage is not as specified in the terminal voltage table (reference), inspect the parts under Inspection item(s).

― If the system does not work normally even though the inspection items are normal, replace the power liftgate (PLG) control module. (See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.)

Terminal Voltage Table (Reference)

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Terminal

Signal name

Connected to

Measurement condition

Voltage (V)/Continuity

Inspection item(s)

1A

CAN_L

-

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible

1B

CAN_H

-

Because this terminal is for communication, good/no good judgment by terminal voltage is not possible

1C

-

-

-

-

-

1D

Liftgate opener switch signal

Rear body control module (RBCM)

When the liftgate opener switch is ON

1.0 or less

•  Rear body control module (RBCM)

―  Terminal 4M

•  Power liftgate (PLG) control module

―  Terminal 1Z

•  Related wiring harness

When the liftgate opener switch is OFF

Approx. 5.0

1E

Hall effect switch ground (RH)

Power liftgate (PLG) drive unit (RH)

Under any condition

1.0 or less

Power liftgate (PLG) control module

―  Terminal 2H

1F

Hall effect switch ground (LH)

Power liftgate (PLG) drive unit (LH)

Under any condition

1.0 or less

Power liftgate (PLG) control module

―  Terminal 2H

1G

Hall effect switch No.1 (RH)

Power liftgate (PLG) drive unit (RH)

Liftgate is operating

Wave pattern (See Inspection Using an Oscilloscope (Reference).)

•  Power liftgate (PLG) drive unit (RH)

―  Terminal B

•  Power liftgate (PLG) control module

―  Terminal 1E

―  Terminal 1K

•  Related wiring harness

1H

Hall effect switch No.1 (LH)

Power liftgate (PLG) drive unit (LH)

Liftgate is operating

Wave pattern (See Inspection Using an Oscilloscope (Reference).)

•  Power liftgate (PLG) drive unit (LH)

―  Terminal B

•  Power liftgate (PLG) control module

―  Terminal 1F

―  Terminal 1L

•  Related wiring harness

1I

Hall effect switch No.2 (RH)

Power liftgate (PLG) drive unit (RH)

Liftgate is operating

Wave pattern (See Inspection Using an Oscilloscope (Reference).)

•  Power liftgate (PLG) drive unit (RH)

―  Terminal D

•  Power liftgate (PLG) control module

―  Terminal 1E

―  Terminal 1K

•  Related wiring harness

1J

Hall effect switch No.2 (LH)

Power liftgate (PLG) drive unit (LH)

Liftgate is operating

Wave pattern (See Inspection Using an Oscilloscope (Reference).)

•  Power liftgate (PLG) drive unit (LH)

―  Terminal D

•  Power liftgate (PLG) control module

―  Terminal 1F

―  Terminal 1L

•  Related wiring harness

1K

Hall effect switch power supply (RH)

Power liftgate (PLG) drive unit (RH)

Under any condition

Approx. 5.0

•  Power liftgate (PLG) drive unit (RH)

―  Terminal C

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

1L

Hall effect switch power supply (LH)

Power liftgate (PLG) drive unit (LH)

Under any condition

Approx. 5.0

•  Power liftgate (PLG) drive unit (LH)

―  Terminal C

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

1M

Power liftgate (PLG) touch sensor GND

•  Power liftgate (PLG) touch sensor (LH)

•  Power liftgate (PLG) touch sensor (RH)

Under any condition

1.0 or less

Power liftgate (PLG) control module

―  Terminal 2H

1N

Power liftgate (PLG) touch sensor signal (LH)

Power liftgate (PLG) touch sensor (LH)

When pressure is applied to the power liftgate (PLG) touch sensor (LH)

1.0 or less

•  Power liftgate (PLG) touch sensor (LH)

―  Terminal D

•  Power liftgate (PLG) control module

―  Terminal 1M

―  Terminal 1AA

―  Terminal 1AD

Other

Approx. 2.5

1O

Full latch switch

Power liftgate (PLG) latch switch

The liftgate is closed from fully opened and in a fully-latched condition

1.0 or less→ B+→ 1.0 or less

•  Power liftgate (PLG) latch switch

―  Terminal F

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

1P

Power liftgate (PLG) touch sensor signal (RH)

Power liftgate (PLG) touch sensor (RH)

When pressure is applied to the power liftgate (PLG) touch sensor (RH)

1.0 or less

•  Power liftgate (PLG) touch sensor (RH)

―  Terminal D

•  Power liftgate (PLG) control module

―  Terminal 1M

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

Other

Approx. 2.5

1Q

Half latch switch

Power liftgate (PLG) latch switch

The liftgate is closed from fully opened and in a half-latched condition

1.0 or less→ B+

•  Power liftgate (PLG) latch switch

―  Terminal B

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

1R

Power liftgate (PLG) buzzer output

Power liftgate (PLG) buzzer

When the power liftgate (PLG) buzzer is sounding

B+

•  Power liftgate (PLG) buzzer

―  Terminal B

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

Other

1.0 or less

1S

Liftgate condition

•  Rear body control module (RBCM)

•  Power liftgate (PLG) latch switch

•  Power liftgate (PLG) rear switch

Liftgate closed

B+

•  Power liftgate (PLG) latch switch

―  Terminal A

•  Related wiring harness

Other

1.0 or less

1T

Liftgate motor return signal

Power liftgate (PLG) latch switch

The liftgate is closed from fully opened and in a fully-closed condition

B+→ 1.0 or less → B+

•  Power liftgate (PLG) latch switch

―  Terminal E

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Related wiring harness

The liftgate is opened from fully closed and in a fully opened condition

B+→ 1.0 or less → B+

1U

Door lock (driver-side)

•  Front door latch and lock actuator (RH)

•  Rear body control module (RBCM)

•  Start stop unit

The driver-side doors is unlocked

B+

•  Front door latch and lock actuator (RH)

―  Terminal J

•  Rear body control module (RBCM)

―  Terminal 3O

•  Power liftgate (PLG) control module

―  Terminal 2H

•  Related wiring harness

The driver-side doors is locked

1.0 or less

1V

Door unlock (driver-side)

•  Front door latch and lock actuator (RH)

•  Rear body control module (RBCM)

•  Power outer mirror switch

The driver-side doors is unlocked

1.0 or less

•  Front door latch and lock actuator (RH)

―  Terminal L

•  Rear body control module (RBCM)

―  Terminal 3M

•  Power liftgate (PLG) control module

―  Terminal 2H

•  Related wiring harness

The driver-side doors is locked

B+

1W

-

-

-

-

-

1X

Door unlock (passenger-side and rear)

Rear body control module (RBCM)

Under any condition

B+

Rear body control module (RBCM)

―  Terminal 3J

1Y

Power liftgate (PLG) front switch signal (Input)

Power liftgate (PLG) front switch

Power liftgate (PLG) front switch: Switch is at ON

B+

•  Power liftgate (PLG) front switch

―  Terminal H

•  Power liftgate (PLG) control module

―  Terminal 1AC

―  Terminal 2H

•  Related wiring harness

Power liftgate (PLG) front switch: Switch is at OFF

1.0 or less

1Z

Liftgate opener switch signal

Liftgate opener switch

When the liftgate opener switch is ON

1.0 or less

Liftgate opener switch

When the liftgate opener switch is OFF

B+

1AA

Power supply

•  Rear body control module (RBCM)

•  Power liftgate (PLG) rear switch

Under any condition

B+

•  Rear body control module (RBCM)

―  Terminal 4F

•  Related wiring harness

1AB

-

-

-

-

-

1AC

Power supply to power liftgate (PLG) switches

•  Power liftgate (PLG) front switch

•  Power liftgate (PLG) rear switch

Power liftgate (PLG) switch: Open or close switch is at ON

Approx. 3.0

•  Power liftgate (PLG) control module

―  Terminal 1AA

―  Terminal 1AD

•  Power liftgate (PLG) front switch

―  Terminal F

•  Power liftgate (PLG) rear switch

―  Terminal D

•  Related wiring harness

Power liftgate (PLG) switch: Open or close switch is at OFF

B+

1AD

Power supply

C/U IG1 15 A fuse

Ignition switched ON (engine off or on)

B+

•  C/U IG1 15 A fuse

•  IG1 relay

•  Start stop unit

―  Terminal 2S

•  Related wiring harness

Ignition switched off or at ACC

1.0 or less

1AE

-

-

-

-

-

1AF

Power liftgate (PLG) rear switch signal

Power liftgate (PLG) rear switch

When operating the power liftgate (PLG) rear switch

B+

•  Power liftgate (PLG) rear switch

―  Terminal C

•  Power liftgate (PLG) control module

―  Terminal 1AC

―  Terminal 2H

•  Related wiring harness

When not operating the power liftgate (PLG) rear switch

1.0 or less

2A

Power liftgate (PLG) drive unit (LH) control open signal

Power liftgate (PLG) drive unit (LH)

Liftgate open operation

B+

•  Power liftgate (PLG) drive unit (LH)

―  Terminal G

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2C

―  Terminal 2H

―  Terminal 2I

•  Related wiring harness

Other

1.0 or less

2B

Power liftgate (PLG) drive unit (RH) control close signal

Power liftgate (PLG) drive unit (RH)

Liftgate close operation

B+

•  Power liftgate (PLG) drive unit (RH)

―  Terminal H

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2E

―  Terminal 2H

―  Terminal 2I

•  Related wiring harness

Other

2.0 or less

2C

Power liftgate (PLG) drive unit (LH) control close signal

Power liftgate (PLG) drive unit (LH)

Liftgate close operation

B+

•  Power liftgate (PLG) drive unit (LH)

―  Terminal H

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2A

―  Terminal 2H

―  Terminal 2I

•  Related wiring harness

Other

2.0 or less

2D

-

-

-

-

-

2E

Power liftgate (PLG) drive unit (RH) control open signal

Power liftgate (PLG) drive unit (RH)

Liftgate open operation

B+

•  Power liftgate (PLG) drive unit (RH)

―  Terminal G

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2B

―  Terminal 2H

―  Terminal 2I

•  Related wiring harness

Other

2.0 or less

2F

-

-

-

-

-

2G

Closure motor (Open)

Liftgate lock actuator

Open the fully closed liftgate by hand

0 → B+→ 0

•  Liftgate lock actuator

―  Terminal A

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2H

―  Terminal 2I

―  Terminal 2J

•  Related wiring harness

2H

GND

Body ground

Under any condition

1.0 or less

Related wiring harnesses

2I

Power supply

PLG 20 A fuse

Under any condition

B+

•  PLG 20 A fuse

•  CABIN. +B 50 A fuse

•  Related wiring harness

2J

Closure motor (Closed)

Liftgate lock actuator

The liftgate is latched manually when it is fully opened

0 → B+→ 0

•  Liftgate lock actuator

•  Power liftgate (PLG) control module

―  Terminal 1AD

―  Terminal 2G

―  Terminal 2I

―  Terminal 2H

•  Related wiring harness

Terminal	Signal name	Connected to	Measurement condition	Voltage (V)/Continuity	Inspection item(s)
1A	CAN_L	-	Because this terminal is for communication, good/no good judgment by terminal voltage is not possible
1B	CAN_H	-	Because this terminal is for communication, good/no good judgment by terminal voltage is not possible
1C	-	-	-	-	-
1D	Liftgate opener switch signal	Rear body control module (RBCM)	When the liftgate opener switch is ON	1.0 or less	• Rear body control module (RBCM) ― Terminal 4M • Power liftgate (PLG) control module ― Terminal 1Z • Related wiring harness
When the liftgate opener switch is OFF	Approx. 5.0
1E	Hall effect switch ground (RH)	Power liftgate (PLG) drive unit (RH)	Under any condition	1.0 or less	Power liftgate (PLG) control module ― Terminal 2H
1F	Hall effect switch ground (LH)	Power liftgate (PLG) drive unit (LH)	Under any condition	1.0 or less	Power liftgate (PLG) control module ― Terminal 2H
1G	Hall effect switch No.1 (RH)	Power liftgate (PLG) drive unit (RH)	Liftgate is operating	Wave pattern (See Inspection Using an Oscilloscope (Reference).)	• Power liftgate (PLG) drive unit (RH) ― Terminal B • Power liftgate (PLG) control module ― Terminal 1E ― Terminal 1K • Related wiring harness
1H	Hall effect switch No.1 (LH)	Power liftgate (PLG) drive unit (LH)	Liftgate is operating	Wave pattern (See Inspection Using an Oscilloscope (Reference).)	• Power liftgate (PLG) drive unit (LH) ― Terminal B • Power liftgate (PLG) control module ― Terminal 1F ― Terminal 1L • Related wiring harness
1I	Hall effect switch No.2 (RH)	Power liftgate (PLG) drive unit (RH)	Liftgate is operating	Wave pattern (See Inspection Using an Oscilloscope (Reference).)	• Power liftgate (PLG) drive unit (RH) ― Terminal D • Power liftgate (PLG) control module ― Terminal 1E ― Terminal 1K • Related wiring harness
1J	Hall effect switch No.2 (LH)	Power liftgate (PLG) drive unit (LH)	Liftgate is operating	Wave pattern (See Inspection Using an Oscilloscope (Reference).)	• Power liftgate (PLG) drive unit (LH) ― Terminal D • Power liftgate (PLG) control module ― Terminal 1F ― Terminal 1L • Related wiring harness
1K	Hall effect switch power supply (RH)	Power liftgate (PLG) drive unit (RH)	Under any condition	Approx. 5.0	• Power liftgate (PLG) drive unit (RH) ― Terminal C • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
1L	Hall effect switch power supply (LH)	Power liftgate (PLG) drive unit (LH)	Under any condition	Approx. 5.0	• Power liftgate (PLG) drive unit (LH) ― Terminal C • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
1M	Power liftgate (PLG) touch sensor GND	• Power liftgate (PLG) touch sensor (LH) • Power liftgate (PLG) touch sensor (RH)	Under any condition	1.0 or less	Power liftgate (PLG) control module ― Terminal 2H
1N	Power liftgate (PLG) touch sensor signal (LH)	Power liftgate (PLG) touch sensor (LH)	When pressure is applied to the power liftgate (PLG) touch sensor (LH)	1.0 or less	• Power liftgate (PLG) touch sensor (LH) ― Terminal D • Power liftgate (PLG) control module ― Terminal 1M ― Terminal 1AA ― Terminal 1AD
Other	Approx. 2.5
1O	Full latch switch	Power liftgate (PLG) latch switch	The liftgate is closed from fully opened and in a fully-latched condition	1.0 or less→ B+→ 1.0 or less	• Power liftgate (PLG) latch switch ― Terminal F • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
1P	Power liftgate (PLG) touch sensor signal (RH)	Power liftgate (PLG) touch sensor (RH)	When pressure is applied to the power liftgate (PLG) touch sensor (RH)	1.0 or less	• Power liftgate (PLG) touch sensor (RH) ― Terminal D • Power liftgate (PLG) control module ― Terminal 1M ― Terminal 1AA ― Terminal 1AD • Related wiring harness
Other	Approx. 2.5
1Q	Half latch switch	Power liftgate (PLG) latch switch	The liftgate is closed from fully opened and in a half-latched condition	1.0 or less→ B+	• Power liftgate (PLG) latch switch ― Terminal B • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
1R	Power liftgate (PLG) buzzer output	Power liftgate (PLG) buzzer	When the power liftgate (PLG) buzzer is sounding	B+	• Power liftgate (PLG) buzzer ― Terminal B • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
Other	1.0 or less
1S	Liftgate condition	• Rear body control module (RBCM) • Power liftgate (PLG) latch switch • Power liftgate (PLG) rear switch	Liftgate closed	B+	• Power liftgate (PLG) latch switch ― Terminal A • Related wiring harness
Other	1.0 or less
1T	Liftgate motor return signal	Power liftgate (PLG) latch switch	The liftgate is closed from fully opened and in a fully-closed condition	B+→ 1.0 or less → B+	• Power liftgate (PLG) latch switch ― Terminal E • Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Related wiring harness
The liftgate is opened from fully closed and in a fully opened condition	B+→ 1.0 or less → B+
1U	Door lock (driver-side)	• Front door latch and lock actuator (RH) • Rear body control module (RBCM) • Start stop unit	The driver-side doors is unlocked	B+	• Front door latch and lock actuator (RH) ― Terminal J • Rear body control module (RBCM) ― Terminal 3O • Power liftgate (PLG) control module ― Terminal 2H • Related wiring harness
The driver-side doors is locked	1.0 or less
1V	Door unlock (driver-side)	• Front door latch and lock actuator (RH) • Rear body control module (RBCM) • Power outer mirror switch	The driver-side doors is unlocked	1.0 or less	• Front door latch and lock actuator (RH) ― Terminal L • Rear body control module (RBCM) ― Terminal 3M • Power liftgate (PLG) control module ― Terminal 2H • Related wiring harness
The driver-side doors is locked	B+
1W	-	-	-	-	-
1X	Door unlock (passenger-side and rear)	Rear body control module (RBCM)	Under any condition	B+	Rear body control module (RBCM) ― Terminal 3J
1Y	Power liftgate (PLG) front switch signal (Input)	Power liftgate (PLG) front switch	Power liftgate (PLG) front switch: Switch is at ON	B+	• Power liftgate (PLG) front switch ― Terminal H • Power liftgate (PLG) control module ― Terminal 1AC ― Terminal 2H • Related wiring harness
Power liftgate (PLG) front switch: Switch is at OFF	1.0 or less
1Z	Liftgate opener switch signal	Liftgate opener switch	When the liftgate opener switch is ON	1.0 or less	Liftgate opener switch
When the liftgate opener switch is OFF	B+
1AA	Power supply	• Rear body control module (RBCM) • Power liftgate (PLG) rear switch	Under any condition	B+	• Rear body control module (RBCM) ― Terminal 4F • Related wiring harness
1AB	-	-	-	-	-
1AC	Power supply to power liftgate (PLG) switches	• Power liftgate (PLG) front switch • Power liftgate (PLG) rear switch	Power liftgate (PLG) switch: Open or close switch is at ON	Approx. 3.0	• Power liftgate (PLG) control module ― Terminal 1AA ― Terminal 1AD • Power liftgate (PLG) front switch ― Terminal F • Power liftgate (PLG) rear switch ― Terminal D • Related wiring harness
Power liftgate (PLG) switch: Open or close switch is at OFF	B+
1AD	Power supply	C/U IG1 15 A fuse	Ignition switched ON (engine off or on)	B+	• C/U IG1 15 A fuse • IG1 relay • Start stop unit ― Terminal 2S • Related wiring harness
Ignition switched off or at ACC	1.0 or less
1AE	-	-	-	-	-
1AF	Power liftgate (PLG) rear switch signal	Power liftgate (PLG) rear switch	When operating the power liftgate (PLG) rear switch	B+	• Power liftgate (PLG) rear switch ― Terminal C • Power liftgate (PLG) control module ― Terminal 1AC ― Terminal 2H • Related wiring harness
When not operating the power liftgate (PLG) rear switch	1.0 or less
2A	Power liftgate (PLG) drive unit (LH) control open signal	Power liftgate (PLG) drive unit (LH)	Liftgate open operation	B+	• Power liftgate (PLG) drive unit (LH) ― Terminal G • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2C ― Terminal 2H ― Terminal 2I • Related wiring harness
Other	1.0 or less
2B	Power liftgate (PLG) drive unit (RH) control close signal	Power liftgate (PLG) drive unit (RH)	Liftgate close operation	B+	• Power liftgate (PLG) drive unit (RH) ― Terminal H • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2E ― Terminal 2H ― Terminal 2I • Related wiring harness
Other	2.0 or less
2C	Power liftgate (PLG) drive unit (LH) control close signal	Power liftgate (PLG) drive unit (LH)	Liftgate close operation	B+	• Power liftgate (PLG) drive unit (LH) ― Terminal H • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2A ― Terminal 2H ― Terminal 2I • Related wiring harness
Other	2.0 or less
2D	-	-	-	-	-
2E	Power liftgate (PLG) drive unit (RH) control open signal	Power liftgate (PLG) drive unit (RH)	Liftgate open operation	B+	• Power liftgate (PLG) drive unit (RH) ― Terminal G • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2B ― Terminal 2H ― Terminal 2I • Related wiring harness
Other	2.0 or less
2F	-	-	-	-	-
2G	Closure motor (Open)	Liftgate lock actuator	Open the fully closed liftgate by hand	0 → B+→ 0	• Liftgate lock actuator ― Terminal A • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2H ― Terminal 2I ― Terminal 2J • Related wiring harness
2H	GND	Body ground	Under any condition	1.0 or less	Related wiring harnesses
2I	Power supply	PLG 20 A fuse	Under any condition	B+	• PLG 20 A fuse • CABIN. +B 50 A fuse • Related wiring harness
2J	Closure motor (Closed)	Liftgate lock actuator	The liftgate is latched manually when it is fully opened	0 → B+→ 0	• Liftgate lock actuator • Power liftgate (PLG) control module ― Terminal 1AD ― Terminal 2G ― Terminal 2I ― Terminal 2H • Related wiring harness

Inspection Using an Oscilloscope (Reference)

ac8jjw00002659

• Connection terminal:

1G (+) ↔ body ground (-)

1H (+) ↔ body ground (-)

1I (+) ↔ body ground (-)

1J (+) ↔ body ground (-)

• Oscilloscope setting: 2 V/DIV (Y), 1 ms/DIV (X), DC range