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 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 DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER CLOSE - FULL OPEN SWITCH
FAILURE?All
Ye s®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 DRBIIItin Inputs/Outputs, read the FULL OPEN SWITCH state.
Manually operate the liftgate while monitoring the DRBIIIt.
Does the switch status change smoothly as the liftgate is pulled down from the full
open position.All
Ye s®Go To 3
No®Refer to Service information for the related symptom(S).
Perform BODY VERIFICATION TEST - VER 1.
791
POWER DOORS - LIFTGATE
Symptom:
INCOMPLETE POWER CLOSE - MISSING HALL SIGNAL
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - MISSING HALL SIGNAL
When Monitored: Anytime the power liftgate is in the closing cycle.
Set Condition: If the Power Liftgate Module detects a missing hall effect signal for longer
than 300 ms. during a closing operation, this code will set. This is a redundant safety
feature in the software and will set if the obstacle detection feature becomes inoperative
due to a hall sensor/connection malfunction.
POSSIBLE CAUSES
DTC PRESENT
POWER LIFTGATE MODULE - HALL EFFECT OPEN
BINDING LIFTGATE
HALL EFFECT GROUND CIRCUIT OPEN
LIFTGATE HALL EFFECT SUPPLY WIRE OPEN
LIFTGATE HALL EFFECT SUPPLY WIRE SHORT TO GROUND
LIFTGATE HALL EFFECT SUPPLY WIRE SHORT TO HARNESS GROUND
LIFTGATE HALL EFFECT SIGNAL WIRE OPEN
LIFTGATE HALL EFFECT SIGNAL WIRE SHORT TO GROUND
LIFTGATE HALL EFFECT SIGNAL WIRE SHORT TO HARNESS GROUND
POWER LIFTGATE MOTOR ASSEMBLY
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER CLOSE - MISSING HALL
SIGNAL?All
Ye s®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.
793
POWER DOORS - LIFTGATE
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. during a close operation.
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 GEAR ENGAGE DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE GEAR ENGAGE DRIVER CIRCUIT SHORT TO HARNESS GROUND
LIFTGATE MODULE
POWER LIFTGATE MOTOR
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER CLOSE- OVERCURRENT?All
Ye s®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 or binding
liftgate prop rods, loose/ hard weatherstrip, and gear teeth on the power liftgate
motor assembly for wear or anything that would cause an obstruction to proper
operation.
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
Ye s®Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
796
POWER DOORS - LIFTGATE
Symptom:
INCOMPLETE POWER CLOSE - TIME OUT
When Monitored and Set Condition:
INCOMPLETE POWER CLOSE - TIME OUT
When Monitored: During Power Liftgate close cycle.
Set Condition: The power close operation was not completed within 20 seconds. This may
be caused by very high closing effort. A weak hall effect signal, low motor output or high
prop rod pressure could also set this code.
POSSIBLE CAUSES
DTC PRESENT
BINDING DOOR
POWER LIFTGATE MOTOR ASSEMBLY
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER CLOSE - TIME-OUT?All
Ye s®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 or other obstruc-
tions.
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 gear teeth on the power liftgate motor
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.
Does it take more effort to operate the liftgate than it should?All
Ye s®Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the Power Liftgate Motor Assembly.
Perform BODY VERIFICATION TEST - VER 1.
799
POWER DOORS - LIFTGATE
Symptom:
INCOMPLETE POWER OPEN - FULL OPEN SWITCH FAILURE
When Monitored and Set Condition:
INCOMPLETE POWER OPEN - FULL OPEN SWITCH FAILURE
When Monitored: During the Power Liftgate open cycle.
Set Condition: The Full Open Switch was detected as closed before 200 hall effect pulses
were counted since the start of the open operation. May be triggered by an intermittent full
open switch failure or a 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 DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER OPEN - FULL OPEN SWITCH
FAILURE?All
Ye s®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 or 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 DRBIIItin Inputs/Outputs, read the FULL OPEN SWITCH state.
Manually operate the liftgate while monitoring the DRBIIIt.
Does the switch status change smoothly as the liftgate is pulled down from the full
open position.All
Ye s®Go To 3
No®Refer to Service information for the related symptom(S).
Perform BODY VERIFICATION TEST - VER 1.
800
POWER DOORS - LIFTGATE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER OPEN - LATCH FAILURE?All
Ye s®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 or other obstruc-
tions.
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 gear teeth on the Power Liftgate Motor
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
Ye s®Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
3 With the DRBIIItin Inputs/Outputs, read the PAWL, RATCHET and FULL OPEN
switch state.
While observing the FULL OPEN switch state, manually lower the liftgate from full
open to part open. The switch should toggle from CLOSED to OPEN.
Open the Liftgate to full open position. While observing the PAWL switch state, click
the latch with a screwdriver to the first detent. The PAWL should toggle from
CLOSED to OPEN.
Open the Liftgate to the full open position. While observing the RATCHET switch
state, click the latch with a screwdriver to the second detent. The RATCHET should
toggle from CLOSED to OPEN.
Repeat the above steps several times.
Select which switch failed:All
FULL OPEN Switch
Go To 4
PAWL Switch
Go To 10
RATCHET Switch
Go To 14
All switches operated properly.
Go To 18
803
POWER DOORS - LIFTGATE
INCOMPLETE POWER OPEN - LATCH FAILURE ÐContinued
Symptom:
INCOMPLETE POWER OPEN - MISSING HALL SIGNAL
When Monitored and Set Condition:
INCOMPLETE POWER OPEN - MISSING HALL SIGNAL
When Monitored: During Power Liftgate opening cycle.
Set Condition: If the Power Liftgate Module detects a missing hall effect signal for longer
than 300 ms. during an opening operation, this code will set. This is a redundant safety
feature in the software and will set if the obstacle detection feature becomes inoperative
due to a hall sensor/connection malfunction.
POSSIBLE CAUSES
DTC PRESENT
POWER LIFTGATE MODULE - HALL EFFECT OPEN
BINDING LIFTGATE
HALL EFFECT GROUND CIRCUIT OPEN
LIFTGATE HALL EFFECT SUPPLY WIRE OPEN
LIFTGATE HALL EFFECT SUPPLY WIRE SHORT TO GROUND
LIFTGATE HALL EFFECT SUPPLY WIRE SHORT TO HARNESS GROUND
LIFTGATE HALL EFFECT SIGNAL WIRE OPEN
LIFTGATE HALL EFFECT SIGNAL WIRE SHORT TO GROUND
LIFTGATE HALL EFFECT SIGNAL WIRE SHORT TO HARNESS GROUND
POWER LIFTGATE MOTOR
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read ACTIVE DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER OPEN - MISSING HALL SIG-
NAL?All
Ye s®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.
808
POWER DOORS - LIFTGATE
Symptom:
INCOMPLETE POWER OPEN - OVERCURRENT
When Monitored and Set Condition:
INCOMPLETE POWER OPEN - OVERCURRENT
When Monitored: Anytime the Power Liftgate is in a power open operation.
Set Condition: The drive motor stall current of over 24 amps has been detected for over
500 ms. during an open operation.
POSSIBLE CAUSES
DTC PRESENT
BINDING LIFTGATE
GROUND CIRCUIT OPEN
LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE LATCH CINCH DRIVER CIRCUIT SHORT TO HARNESS GROUND
LIFTGATE GEAR ENGAGE DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE OPEN DRIVER CIRCUIT SHORT TO GROUND
LIFTGATE GEAR ENGAGE DRIVER CIRCUIT SHORT TO HARNESS GROUND
LIFTGATE MODULE
POWER LIFTGATE MOTOR
TEST ACTION APPLICABILITY
1 With the DRBIIIt, 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 DRBIIIt, read DTCs.
Does the DRBIIItdisplay INCOMPLETE POWER OPEN - OVERCURRENT?All
Ye s®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 gear teeth on the Power Liftgate Motor
assembly for wear or anything that would cause an obstruction to proper operation.
If necessary manually operate the liftgate of a known good vehicle and notice the
effort needed.
Compare the effort needed on the disabled vehicle.
Were there any mechanical problems found?All
Ye s®Refer to Service information for the related symptom(s).
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
811
POWER DOORS - LIFTGATE