DTC B144F:62 [POWER LIFTGATE (PLG) CONTROL MODULE]

id0902o8048400

Description

Deviation in operation between left and right power liftgate (PLG) drive unit
Detection condition
•  The power liftgate (PLG) control module detects a difference in operation between the left and right power liftgate (PLG) drive unit for a 50 pulse count or more.
Fail-safe
•  Stops the power liftgate (PLG) system operation.
Possible cause
•  Power liftgate (PLG) drive unit (LH) connector or terminal malfunction
•  Power liftgate (PLG) drive unit (RH) connector or terminal malfunction
•  Power liftgate (PLG) control module connector or terminal malfunction
•  Short to ground in wiring harness between the following terminals:
?  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
?  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
?  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
?  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
•  Short to power supply in wiring harness between the following terminals:
?  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
?  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
?  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
?  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
•  Open circuit in wiring harness between the following terminals:
?  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
?  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
?  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
?  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
•  Power liftgate (PLG) drive unit (LH) malfunction
•  Power liftgate (PLG) drive unit (RH) malfunction
•  Power liftgate (PLG) control module malfunction

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (LH) CONNECTOR CONDITION
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Disconnect the power liftgate (PLG) drive unit (LH) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
2
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (RH) CONNECTOR CONDITION
•  Disconnect the power liftgate (PLG) drive unit (RH) connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
3
INSPECT POWER LIFTGATE (PLG) CONTROL MODULE CONNECTOR CONDITION
•  Disconnect the power liftgate (PLG) control module connector.
•  Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
•  Is the connector normal?
Yes
Go to the next step.
No
Repair or replace the connector, then go to Step 9.
4
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR SHORT TO GROUND
•  Verify that the power liftgate (PLG) drive unit (LH), power liftgate (PLG) drive unit (RH) and power liftgate (PLG) control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side) and body ground:
?  Power liftgate (PLG) drive unit (LH) terminal D
?  Power liftgate (PLG) drive unit (LH) terminal B
?  Power liftgate (PLG) drive unit (RH) terminal D
?  Power liftgate (PLG) drive unit (RH) terminal B
•  Is there continuity?
Yes
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
•  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
•  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
•  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to ground.
Go to Step 9.
No
Go to the next step.
5
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR SHORT TO POWER SUPPLY
•  Verify that the power liftgate (PLG) drive unit (LH), power liftgate (PLG) drive unit (RH) and power liftgate (PLG) control module connectors are disconnected.
•  Connect the negative battery terminal.
•  Measure the voltage at the following terminals (wiring harness-side):
?  Power liftgate (PLG) drive unit (LH) terminal D
?  Power liftgate (PLG) drive unit (LH) terminal B
?  Power liftgate (PLG) drive unit (RH) terminal D
?  Power liftgate (PLG) drive unit (RH) terminal B
•  Is the voltage 0 V?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
•  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
•  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
•  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to power supply.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has a short to power supply.
Go to Step 9.
6
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR OPEN CIRCUIT
•  Switch the ignition off.
•  Disconnect the negative battery terminal.
•  Verify that the power liftgate (PLG) drive unit (LH), power liftgate (PLG) drive unit (RH) and power liftgate (PLG) control module connectors are disconnected.
•  Inspect for continuity between the following terminals (wiring harness-side):
?  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
?  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
?  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
?  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
•  Is there continuity?
Yes
Go to the next step.
No
Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
•  Power liftgate (PLG) drive unit (LH) terminal D?Power liftgate (PLG) control module terminal 1J
•  Power liftgate (PLG) drive unit (LH) terminal B?Power liftgate (PLG) control module terminal 1H
•  Power liftgate (PLG) drive unit (RH) terminal D?Power liftgate (PLG) control module terminal 1I
•  Power liftgate (PLG) drive unit (RH) terminal B?Power liftgate (PLG) control module terminal 1G
If there is a common connector:
•  Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
•  Repair or replace the malfunctioning part.
If there is no common connector:
•  Repair or replace the wiring harness which has an open circuit.
Go to Step 9.
7
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (LH)
•  Inspect the power liftgate (PLG) drive unit (LH).
•  Is the power liftgate (PLG) drive unit (LH) normal?
Yes
Go to the next step.
No
Replace the power liftgate (PLG) drive unit (LH), then go to Step 9.
(See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION.)
8
INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (RH)
•  Inspect the power liftgate (PLG) drive unit (RH).
•  Is the power liftgate (PLG) drive unit (RH) normal?
Yes
Go to the next step.
No
Replace the power liftgate (PLG) drive unit (RH), then go to the next step.
(See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION.)
9
VERIFY THAT REPAIRS HAVE BEEN COMPLETED
•  Always reconnect all disconnected connectors.
•  Connect the negative battery terminal.
•  Clear the DTC for the power liftgate (PLG) control module using the M-MDS.
•  Retrieve the power liftgate (PLG) control module DTCs using the M-MDS.
•  Is the same DTC displayed?
Yes
Repeat the inspection from Step 1.
•  If the malfunction recurs, replace the power liftgate (PLG) control module.
Go to the next step.
No
Go to the next step.
10
VERIFY IF OTHER DTCs DISPLAYED
•  Are any other DTCs displayed?
Yes
Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [POWER LIFTGATE (PLG) CONTROL MODULE].)
No
DTC troubleshooting completed.