Chrysler Town, Dodge Caravan. Manual — part 894
Symptom:
INCOMPLETE LATCH RELEASE- SECTOR GEAR RETURN FAIL-
URE
When Monitored and Set Condition:
INCOMPLETE LATCH RELEASE- SECTOR GEAR RETURN FAILURE
When Monitored:
Whenever the power liftgate is operating.
Set Condition:
If the cinch release motor takes longer than 700 ms to perform a release
operation this code will set. The main causes of this code setting is some type of sticking
situation preventing the sector gear in the cinch release motor assembly to return to its
neutral position.
POSSIBLE CAUSES
DTC PRESENT
BINDING LIFTGATE
LIFTGATE CINCH RELEASE MOTOR ASSEMBLY
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 LATCH RELEASE - SECTOR GEAR
RETURN 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
door several times and check for any binding or other obstruc-
tions.
Perform BODY VERIFICATION TEST - VER 1.
2
Examine the liftgate for proper fit and alignment, loose/hard or torn seals, struts 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 liftgate.
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
→ Replace the Liftgate Cinch Release Motor Assembly..
Perform BODY VERIFICATION TEST - VER 1.
812
POWER DOORS - LIFTGATE
Symptom:
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE/
NON ENGAGEMENT
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE/NON ENGAGE-
MENT
When Monitored:
Whenever the power liftgate is closing.
Set Condition:
The Full Open Switch was detected as closed before 200 hall effect 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
POWER LIFTGATE MOTOR ASSEMBLY - 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.
813
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 Power Liftgate Motor assembly.
Perform BODY VERIFICATION TEST - VER 1.
814
POWER DOORS - LIFTGATE
INCOMPLETE POWER CLOSE - FULL OPEN SWITCH FAILURE/NON
ENGAGEMENT —
Continued
Symptom:
INCOMPLETE POWER CLOSE - EXCESSIVE H.E. COUNTS/NON
ENGAGEMENT
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - EXCESSIVE H.E. COUNTS/NON ENGAGEMENT
When Monitored:
During Power Liftgate closing cycle.
Set Condition:
If the PLG Module detects that the Power Liftgate Motor has generated
more than 700 hall effect pulses during a full power cycle, this code will set.
POSSIBLE CAUSES
DTC PRESENT
POWER LIFTGATE MODULE - HALL EFFECT OPEN
BINDING LIFTGATE
LIFTGATE GEAR ENGAGE DRIVER WIRE OPEN
LIFTGATE GEAR ENGAGE DRIVER WIRE SHORT TO GROUND
LIFTGATE GEAR ENGAGE DRIVER WIRE SHORT TO THE LIFTGATE GEAR DISENGAGE WIRE.
LIFTGATE GEAR DISENGAGE DRIVER WIRE OPEN
LIFTGATE GEAR DISENGAGE DRIVER WIRE SHORT TO GROUND
POWER LIFTGATE MODULE - GEAR ENGAGE CIRCUIT OPEN
POWER LIFTGATE MOTOR
POWER LIFTGATE MOTOR - GEAR ENGAGE OPEN
POWER LIFTGATE MOTOR - GEAR ENGAGE SHORT TO GROUND
POWER LIFTGATE MOTOR - GEAR ENGAGE SHORTED
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 H.E.
COUNTS/NON ENGAGEMENT?
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.
815
POWER DOORS - LIFTGATE
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