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)  Trunk board (See TRUNK BOARD REMOVAL/INSTALLATION.)
(2)  Trunk covering (See TRUNK COVERING REMOVAL/INSTALLATION.)
(3)  Trunk side pocket (See TRUNK SIDE POCKET REMOVAL/INSTALLATION.)
(4)  Trunk end trim (See TRUNK END TRIM REMOVAL/INSTALLATION.)
(5)  Rear scuff plate (See REAR SCUFF PLATE REMOVAL/INSTALLATION.)
(6)  Third-row seat cushion (See THIRD-ROW SEAT CUSHION REMOVAL/INSTALLATION.)
(7)  Third-row seat (See THIRD-ROW SEAT BACK COMPONENT REMOVAL/INSTALLATION.)
(8)  Trunk side trim (See TRUNK SIDE 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) and related wiring harnesses.
?  If the system does not work normally even though the inspection items are normal, replace the power liftgate (PLG) control module.

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
2.0 or less
Rear body control module (RBCM)
When the liftgate opener switch is OFF
5.0
1D
-
-
-
-
-
1E
Hall effect switch ground (RH)
Power liftgate (PLG) drive unit (RH)
Under any condition
1.0 or less
Power liftgate (PLG) drive unit (RH)
1F
Hall effect switch ground (LH)
Power liftgate (PLG) drive unit (LH)
Under any condition
1.0 or less
Power liftgate (PLG) drive unit (LH)
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)
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)
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)
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)
1K
Hall effect switch power supply (RH)
Power liftgate (PLG) drive unit (RH)
Under any condition
B+
Power liftgate (PLG) drive unit (RH)
1L
Hall effect switch power supply (LH)
Power liftgate (PLG) drive unit (LH)
Under any condition
B+
Power liftgate (PLG) drive unit (LH)
1M
Power liftgate (PLG) touch sensor GND
Body ground
Under any condition
1.0 or less
Related wiring harnesses
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)
Other
B+
1O
Full latch switch
Liftgate latch and lock actuator
After opening the liftgate, operate the closure motor with the liftgate half-closed
1.0 or less? B+? 1.0 or less
Liftgate latch and lock actuator
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)
Other
B+
1Q
Half latch switch
Liftgate latch and lock actuator
After opening the liftgate, operate the closure motor with the liftgate half-closed
1.0 or less? B+
Liftgate latch and lock actuator
1R
Power liftgate (PLG) buzzer output
Power liftgate (PLG) buzzer
When the power liftgate (PLG) buzzer is sounding
B+
Power liftgate (PLG) buzzer
Other
1.0 or less
1S
Liftgate condition
Rear body control module (RBCM)
Liftgate closed
B+
Rear body control module (RBCM)
Other
1.0 or less
1T
Motor return signal
Return switch
After opening the liftgate, operate the closure motor with the liftgate half-closed
1.0 or less
Liftgate latch and lock actuator
1U
Door lock (driver-side)
Door latch and lock actuator
The driver-side doors is unlocked
B+
Door latch and lock actuator
The driver-side doors is locked
1.0 or less
1V
Door unlock (driver-side)
Door latch and lock actuator
The driver-side doors is unlocked
1.0 or less
Door latch and lock actuator
The driver-side doors is locked
B+
1W
-
-
-
-
-
1X
Door unlock (passenger-side and rear)
Door latch and lock actuator
The passenger-side and rear doors are all unlocked
1.0 or less
Door latch and lock actuator
The passenger-side and rear doors are all locked
B+
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
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
B+
Liftgate opener switch
When the liftgate opener switch is OFF
1.0 or less
1AA
Power supply
INTERIOR 20 A fuse
Under any condition
B+
INTERIOR 20 A fuse
1AB
-
-
-
-
-
1AC
Power supply to power liftgate (PLG) switches
Power liftgate (PLG) switch
Power liftgate (PLG) front switch: Open or close switch is at ON
1.0 or less
Power liftgate (PLG) control module
Power liftgate (PLG) front 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
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
When not operating the power liftgate (PLG) rear switch
1.0 or less
2A
Drive unit (LH) control open signal
Power liftgate (PLG) drive unit (LH)
Liftgate open operation
B+
Power liftgate (PLG) drive unit (LH)
Other
1.0 or less
2B
Drive unit (RH) control close signal
Power liftgate (PLG) drive unit (RH)
Liftgate close operation
B+
Power liftgate (PLG) drive unit (RH)
Other
1.0 or less
2C
Drive unit (LH) control close signal
Power liftgate (PLG) drive unit (LH)
Liftgate close operation
B+
Power liftgate (PLG) drive unit (LH)
Other
1.0 or less
2D
-
-
-
-
-
2E
Drive unit (RH) control open signal
Power liftgate (PLG) drive unit (LH)
Liftgate open operation
B+
Power liftgate (PLG) drive unit (LH)
Other
1.0 or less
2F
-
-
-
-
-
2G
Closure motor (Open)
Liftgate latch and lock actuator
Open the fully closed liftgate by hand
0 ? B+? 0
Liftgate latch and lock actuator
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
2J
Closure motor (Closed)
Liftgate latch and lock actuator
After opening the liftgate, operate the closure motor with the liftgate half-closed
0 ? B+? 0
Liftgate latch and lock actuator

Inspection Using an Oscilloscope (Reference)

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•  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