Chrysler Pacifica. Manual — part 211
TEST
ACTION
APPLICABILITY
7
Disconnect the Power Liftgate Drive Unit connector.
Turn the ignition on.
Measure the voltage between ground and the Optical Sensor Supply circuit in the
harness connector.
Is the voltage above 4.7 volts?
All
Yes
→ Go To 8
No
→ Go To 10
8
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between ground and the Optical Sensor Signal 1 then Optical
Sensor Signal 2 circuits in the Power Liftgate C2 connector.
Is the resistance below 20000.0 ohms in either circuits?
All
Yes
→ Repair the Optical Sensor Signal 1 or 2 wire for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 9
9
Turn the ignition off.
Disconnect the Power Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance of the Optical Sensor Signal 1 then 2 circuit between the
Power Liftgate Drive Unit connector and the Power Liftgate Module C2 connector.
Is the resistance below 2.0 ohms on both circuits?
All
Yes
→ Replace the Optical Sensor.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Optical Sensor Signal 1 or 2 wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
10
Turn the ignition off.
Disconnect the Power Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between ground and the Liftgate Optical Sensor Supply
circuit.
Is the resistance below 10000.0 ohms?
All
Yes
→ Repair the Optical Sensor Supply wire for a short to Ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 11
11
Disconnect the Power Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance of the Liftgate Optical Supply circuit between the Drive Unit
connector and the Module connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Power Liftgate Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Optical Sensor Supply wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
841
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - OPTICAL SIGNAL MISSING —
Continued
Symptom:
INCOMPLETE POWER CLOSE - OVER CURRENT
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - OVER CURRENT
When Monitored:
Anytime the liftgate is in a closing operation.
Set Condition:
The drive motor stall current of over 24 amps has been detected for over
500 ms. or during the initial clutch engagement.
POSSIBLE CAUSES
DTC PRESENT
BINDING LIFTGATE
GROUND CIRCUIT OPEN
LIFTGATE CLOSE DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE LATCH RELEASE DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE LATCH RELEASE DRIVER CIRCUIT SHORT TO HARNESS GROUND
LIFTGATE CLUTCH DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE CLUTCH DRIVER CIRCUIT SHORT TO HARNESS GROUND
DRIVE MOTOR
LIFTGATE MODULE
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, record and erase DTC’s.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the power liftgate several times (if possible).
With the DRBIII
t, read DTCs.
Does the DRBIII
t display INCOMPLETE POWER CLOSE- OVERCURRENT?
All
Yes
→ Go To 2
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition. Operate the
liftgate several times and check for any binding conditions.
Perform BODY VERIFICATION TEST - VER 1.
842
POWER DOORS - LIFTGATE
TEST
ACTION
APPLICABILITY
2
Examine the liftgate for proper alignment, worn or binding hinges, weak or binding
liftgate prop rods, loose/ hard weatherstrip, and track assembly for wear or anything
that would cause an obstruction to proper operation.
Manually operate the liftgate of a known good vehicle and notice the effort needed to
open and close.
Compare the effort needed on the disabled vehicle.
Especially notice the effort needed to unlatch and close the liftgate.
Does it take more effort to operate the liftgate than it should?
All
Yes
→ Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the Power Liftgate Module C1 connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
Wiggle the harness and check for an intermittent open condition.
Does the test light illuminate brightly?
All
Yes
→ Go To 4
No
→ Repair the Ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the Power Liftgate Module C1 connector.
Measure the resistance between ground and the Liftgate Close Driver circuit.
Wiggle the harness and check for an intermittent short circuit condition.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Close Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 5
5
Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between ground and the Liftgate Latch Release Driver
circuit.
Wiggle the harness and check for an intermittent short condition.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Latch Release Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 6
6
Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between the Ground circuit (cavity 20) and the Liftgate Latch
Release Driver circuit.
Wiggle the harness and check for an intermittent short condition.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Latch Release Driver circuit for a short to the
Ground circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 7
843
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - OVER CURRENT —
Continued
TEST
ACTION
APPLICABILITY
7
Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Disconnect the Power Liftgate Drive Unit connector.
Measure the resistance between ground and the Liftgate Clutch Driver circuit.
Wiggle the harness and check for an intermittent short condition.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Clutch Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 8
8
Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Disconnect the Power Liftgate Drive Unit connector.
Measure the resistance between the Ground circuit (cavity 20) and the Liftgate
Clutch Driver circuit.
Wiggle the harness and check for an intermittent short condition.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Clutch Driver circuit for a short to the Ground
circuit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 9
9
Ensure all module and motor connectors are connected at this time.
Try to operate the liftgate in the close position.
Did the motor start to close the liftgate but was very slow and labored extensively?
All
Yes
→ Replace the Power Liftgate Drive Motor.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Power Liftgate Module
Perform BODY VERIFICATION TEST - VER 1.
844
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - OVER CURRENT —
Continued
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