Chrysler Pacifica. Manual — part 208
Symptom:
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE
When Monitored:
Whenever the power liftgate is closing.
Set Condition:
The Full Open Switch was detected as closed before 200 optical pulses
were counted since the start of the close operation. May be triggered by an intermittent full
open switch failure, or non gear engagement
POSSIBLE CAUSES
DTC PRESENT
OBSTRUCTION OR STICKING FULL OPEN SWITCH
FULL OPEN SWITCH SHORT TO GROUND
FULL OPEN SWITCH
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 - FULL OPEN SWITCH
FAILURE?
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 cables or other
obstructions.
Perform BODY VERIFICATION TEST - VER 1.
2
Examine the liftgate for proper fit and alignment, foreign material in the drive unit
or anything that would cause an obstruction to proper operation of the Full Open
Switch.
With the DRBIII
t in Inputs/Outputs, read the FULL OPEN SWITCH state.
Manually operate the liftgate while monitoring the DRBIII
t.
Does the switch status change smoothly as the liftgate is pulled down from the full
open position.
All
Yes
→ Go To 3
No
→ Replace the Full Open Switch in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
829
POWER DOORS - LIFTGATE
TEST
ACTION
APPLICABILITY
3
With the DRBIII
t in Inputs/Outputs, read the FULL OPEN SWITCH state.
Open the liftgate to mid position.
While monitoring the DRBIII
t, wiggle the wiring harness from the Power Liftgate
Module to the Full Open Switch on the Power Liftgate Motor assembly.
Did the switch status ever change?
All
Yes
→ Repair the Liftgate Full Open Switch Sense circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Full Open Switch.
Perform BODY VERIFICATION TEST - VER 1.
830
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE —
Continued
Symptom:
INCOMPLETE POWER CLOSE - EXCESSIVE OPTICAL COUNTS
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - EXCESSIVE OPTICAL COUNTS
When Monitored:
During Power Liftgate closing cycle.
Set Condition:
If the PLG Module detects that the Power Liftgate Motor has generated
more than 700 optical pulses during a full power cycle, this code will set.
POSSIBLE CAUSES
DTC PRESENT
POWER LIFTGATE MODULE - OPTICAL SENSE OPEN
BINDING LIFTGATE
LIFTGATE CLUTCH DRIVER WIRE OPEN
LIFTGATE CLUTCH GROUND OPEN
PWR LIFTGATE DRIVE UNIT
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 from stop to stop if possible.
With the DRBIII
t, read ACTIVE DTCs.
Does the DRBIII
t display INCOMPLETE POWER CLOSE - EXCESSIVE OPTICAL
COUNTS?
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
Examine the liftgate for proper alignment, worn or binding hinges, weak liftgate prop
assembly, loose/ hard weatherstrip, and track assembly for wear or anything that
would cause an obstruction to proper operation.
If necessary manually operate the power liftgate on a known good vehicle and notice
the effort needed to open and close for comparison.
Especially notice the effort needed to unlatch and close the liftgate.
Were there any mechanical problems found?
All
Yes
→ Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
831
POWER DOORS - LIFTGATE
TEST
ACTION
APPLICABILITY
3
Operate the liftgate from the full closed position and put an obstacle in it’s path to
make it reverse.
Did the liftgate reverse back to the closed position?
All
Yes
→ Go To 4
No
→ Replace the Power Liftgate Module.
Perform BODY VERIFICATION TEST - VER 1.
4
Disconnect the Power Liftgate Drive Unit connector
Measure the resistance of the Ground circuit between the Drive Unit connector
(cavity 9) and ground.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the Liftgate Clutch Ground for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
Disconnect the Power Liftgate Drive Unit connector.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance of the Liftgate Clutch Driver circuit between the Power
Liftgate Drive Unit connector and the Power Liftgate Module C2 connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Replace the Power Liftgate Drive Unit.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Liftgate Clutch Driver wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
832
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - EXCESSIVE OPTICAL COUNTS —
Continued
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