Chrysler Pacifica. Manual — part 212
Symptom:
INCOMPLETE POWER CLOSE - TRANSISTOR SHORTED
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - TRANSISTOR SHORTED
When Monitored:
Whenever the power liftgate is performing a power close operation.
Set Condition:
The Power Liftgate Module senses current through the transistor even
though the device is turned off. This is checked at the start of every power close cycle
during the chime period, before the liftgate starts to move.
POSSIBLE CAUSES
DTC PRESENT
POWER LIFTGATE MODULE SHORT TO GROUND
LIFTGATE OPEN DRIVER WIRE SHORT TO GROUND
LIFTGATE CLOSE DRIVER WIRE SHORT TO GROUND
POWER LIFTGATE MOTOR
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 ACTIVE DTCs.
Does the DRBIII
t display INCOMPLETE POWER CLOSE - TRANSISTOR
SHORTED?
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.
2
Turn the ignition off.
Disconnect the Power Liftgate Module C1 harness connector.
Measure the resistance between ground and the Liftgate Open Driver circuit.
Is the resistance below 1000.0 ohms?
All
Yes
→ Go To 3
No
→ Replace the Power Liftgate Module.
Perform BODY VERIFICATION TEST - VER 1.
845
POWER DOORS - LIFTGATE
TEST
ACTION
APPLICABILITY
3
Turn the ignition off.
Disconnect the Power Liftgate Module C1 harness connector.
Disconnect the Power Liftgate Motor connector.
Measure the resistance between ground and the Liftgate Open Driver circuit.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Open Driver wire for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
Turn the ignition off.
Disconnect the Power Liftgate Module C1 harness connector.
Disconnect the Power Liftgate Motor connector.
Measure the resistance between ground and the Liftgate Close Driver circuit.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Close Driver wire for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Power Liftgate Motor.
Perform BODY VERIFICATION TEST - VER 1.
846
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - TRANSISTOR SHORTED —
Continued
Symptom:
INCOMPLETE POWER CLOSE - UNDER CURRENT/OVERHEAT
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - UNDER CURRENT/OVERHEAT
When Monitored:
During the Liftgate close cycle.
Set Condition:
When the module senses less than 1 amp on the Liftgate Open Driver
circuit.
POSSIBLE CAUSES
DTC PRESENT
BINDING LIFTGATE
WEAK CIRCUIT BREAKER
RESISTED OPEN DRIVER CIRCUIT
RESISTED CLOSE DRIVER CKT
PLG MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: When this code is set, the module will abort the power close cycle
and begin
(Clutch Pulsing(. This is where the module will cycle the Liftgate
Clutch Driver until the gate stops moving (based on Optical Sensor inputs).
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 over 10 times if possible.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display INCOMPLETE POWER CLOSE - UNDERCURRENT/
OVERHEAT?
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.
2
This test will determine if the Drive Unit circuit breaker is weak.
When gate was operated in the previous step, did it operate properly and then quit
suddenly?
All
Yes
→ Replace the Drive Unit Motor (weak circuit breaker)..
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
847
POWER DOORS - LIFTGATE
TEST
ACTION
APPLICABILITY
3
Examine the liftgate for proper fit and alignment, or anything that would cause an
obstruction to proper operation.
Check the prop rods to ensure liftgate will self rise from approximately 1/4 open
position.
Manually operate the liftgate several times.
If necessary, manually operate the liftgate of a known good vehicle and notice the
effort needed to open it.
Does it take more effort to operate the liftgate of the disabled vehicle than it should?
All
Yes
→ Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
NOTE: Check all connectors for corrosion and proper fit and repair as
necessary before proceeding
Disconnect the Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C1 connector.
Measure the resistance of the Liftgate Open Driver circuit between the Liftgate Drive
Unit connector and the Power Liftgate Module connector.
Is the resistance below 1.0 ohms?
All
Yes
→ Go To 5
No
→ Locate and repair the liftgate open driver circuit for high resis-
tance.
Perform BODY VERIFICATION TEST - VER 1.
5
NOTE: Check all connectors for corrosion and proper fit and repair as
necessary before proceeding
Disconnect the Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C1 connector.
Measure the resistance of the Liftgate Close Driver circuit between the Liftgate
Drive Unit connector and the Power Liftgate Module connector.
Is the resistance below 1.0 ohms?
All
Yes
→ Replace the Power Liftgate Module.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Locate and repair the liftgate close driver circuit for high resis-
tance.
Perform BODY VERIFICATION TEST - VER 1.
848
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - UNDER CURRENT/OVERHEAT —
Continued
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