Chrysler Town, Dodge Caravan. Manual — part 884
Symptom:
LIFTGATE CYLINDER LOCK SWITCH INPUT STUCK - (EXPORT
ONLY)
When Monitored and Set Condition:
LIFTGATE CYLINDER LOCK SWITCH INPUT STUCK - (EXPORT ONLY)
When Monitored:
At all times when battery power is supplied to the Body Control
Module.
Set Condition:
When the BCM senses voltage to the cylinder lock switch between 1.3 and
3.25 volts for over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
BODY CONTROL MODULE - LIFTGATE CYLINDER SWITCH VOLTAGE INCORRECT
LIFTGATE CYLINDER SWITCH GROUND OPEN
LIFTGATE CYLINDER LOCK SWITCH MUX OPEN
CYLINDER LOCK SWITCH STUCK
TEST
ACTION
APPLICABILITY
1
NOTE: When this code is present, the VTSS indicator will stay on solid during the
arming process.
With the DRBIII
t, record and erase DTC’s.
With the DRBIII
t, read DTC’s.
Remove the key and operate the Liftgate Cylinder Switch several times while
monitoring the DRBIII
t.
Wait 10 seconds.
Does the DRBIII
t display LGATE CYL SW INPUT STUCK?
All
Yes
→ Go To 2
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1.
2
With the DRBIII
t in Sensors, read the LGATE CYL LOCK SW voltage.
Does the DRBIII
t display voltage between 1.3 and 3.25 volts?
All
Yes
→ Go To 3
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
3
Disconnect the Liftgate Cylinder Switch connector.
Using a 12-volt test light connected to 12-volts, check the Ground circuit.
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.
772
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
4
Disconnect the Liftgate Cylinder Lock Switch connector.
Measure the voltage between Cylinder Lock Switch Mux circuit and ground.
Is the voltage above 4.6 volts?
All
Yes
→ Go To 5
No
→ Repair the Liftgate Cylinder Lock Switch Mux circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the Cylinder Lock Switch.
Perform BODY VERIFICATION TEST - VER 1.
773
POWER DOOR LOCKS/RKE
LIFTGATE CYLINDER LOCK SWITCH INPUT STUCK - (EXPORT ONLY)
—
Continued
Symptom:
LIFTGATE POWER RELEASE OUTPUT SHORT
When Monitored and Set Condition:
LIFTGATE POWER RELEASE OUTPUT SHORT
When Monitored:
Continuously for non power liftgate vehicles
Set Condition:
When the Body Control Module senses a low output on the Liftgate
Release Driver circuit for longer than 125 ms during a liftgate release actuation.
POSSIBLE CAUSES
DTC PRESENT
BODY CONTROL MODULE - LIFTGATE RELEASE DRIVER SHORTED
LIFTGATE RELEASE DRIVER WIRE SHORT TO GROUND
LIFTGATE RELEASE MOTOR SHORTED
TEST
ACTION
APPLICABILITY
1
Ensure vehicle is unlocked before proceeding.
Turn the ignition on.
With the DRBIII
t, record and erase DTC’s.
With the DRBIII
t, read DTC’s.
Operate the Liftgate Release several times from the Liftgate Handle Switch while
monitoring the DRBIII
t.
Does the DRBIII
t display LIFTGATE POWER RELEASE OUTPUT SHORT?
All
Yes
→ Go To 2
No
→ Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform BODY VERIFICATION TEST - VER 1.
2
Disconnect the Body Control Module C3 connector.
Measure the resistance between ground and the Liftgate Release Driver circuit.
Is the resistance below 3.5 ohms?
All
Yes
→ Go To 3
No
→ Disconnect the BCM harness connector(s). Check connectors -
Clean/repair as necessary. If okay, replace the Body Control
Module.
Perform BODY VERIFICATION TEST - VER 1.
3
Disconnect the Liftgate Ajar Switch connector.
Disconnect the Body Control Module C3 connector.
NOTE: Check connectors - Clean/repair as necessary.
Measure the resistance between Liftgate Release Driver circuit and ground.
Is the resistance below 100.0 ohms?
All
Yes
→ Repair the Liftgate Release Driver circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
774
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
4
If there are no possible causes remaining, view repair.
All
Repair
Replace the Liftgate Release Motor.
Perform BODY VERIFICATION TEST - VER 1.
775
POWER DOOR LOCKS/RKE
LIFTGATE POWER RELEASE OUTPUT SHORT —
Continued
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