LIFTGATE AUTO CLOSURE CONTROL MODULE INSPECTION

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1.  Disconnect the negative battery cable.

2.  Fold the rear seat back.

3.  Remove the rear scuff plate. (See REAR SCUFF PLATE REMOVAL/INSTALLATION.)

4.  Remove the tire house trim. (See TIRE HOUSE TRIM REMOVAL/INSTALLATION.)

5.  Remove the trunk side upper trim. (See TRUNK SIDE UPPER TRIM REMOVAL/INSTALLATION.)

6.  Installation the cargo compartment light connector. (See CARGO COMPARTMENT LIGHT REMOVAL/INSTALLATION.)

7.  Connect the negative battery cable.

8.   Measure the voltage according to the terminal voltage table.

•  If the voltages cannot be verified as indicated in the terminal voltage table, inspect the parts under “Inspection item (s)”.

―  If the system does not work normally even though the inspection items or related wiring harnesses do not have any malfunction, replace the liftgate auto closure control module.

Terminal Voltage Table (Reference)

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Terminal	Signal name	Connected to	Measurement condition		Voltage (V)	Inspection item (s)
1A	BCM communication	BCM	Perform OPEN operation from a liftgate fully closed condition		1.0 or less →B+→1.0 or less	BCM
1C	Power supply	CLOSER 25 A fuse	Switch the ignition to ACC		B+	Ignition switch CLOSER 25 A fuse Battery
			Switch the ignition to off		1.0 or less
1D	Power ground	Body ground	Under any condition		1.0 or less	Related wiring harnesses
1E	Normal rotation	Liftgate latch and lock motor	Open the liftgate, then activate closure motor from the ajar position.		1.0 or less →B+→1.0 or less	Liftgate latch and lock motor
1F	Motor reverse rotation	Liftgate latch and lock motor	Open the liftgate using the liftgate opener switch with the liftgate fully closed.		1.0 or less →B+→1.0 or less	Liftgate latch and lock motor
2A	Return switch signal	Return switch	Open the liftgate, then activate the closure motor at the ajar position.		B+→1.0 or less→B+	Liftgate latch and lock motor
2B	Liftgate latch switch signal	Liftgate latch and lock motor	Liftgate is open. (Liftgate latch switch on)		1.0 or less	Liftgate latch and lock motor
			Liftgate is closed. (Liftgate latch switch off)		B+
2C	Full-latch switch signal	Liftgate latch and lock motor	Open the liftgate, then activate the closure motor at the ajar position.		1.0 or less →B+→1.0 or less	Liftgate latch and lock motor
2D	Half latch detection switch	Liftgate latch and lock motor	Open the liftgate, then activate the closure motor at the ajar position.		1.0 or less→5	Liftgate latch and lock motor
2G	BCM communication	BCM	Open the liftgate using the liftgate opener switch with the liftgate fully closed.		5→B+→5	BCM
2H	Signal ground	Body ground	Under any condition		1.0 or less	Related wiring harnesses