Chrysler Town, Dodge Caravan. Manual — part 883
Symptom:
LIFTGATE CYLINDER LOCK SWITCH INPUT OPEN OR SHORT TO
VOLTAGE - (EXPORT ONLY)
When Monitored and Set Condition:
LIFTGATE CYLINDER LOCK SWITCH INPUT OPEN OR SHORT TO VOLTAGE -
(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 above 4.6 volts
for over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
BODY CONTROL MODULE - LIFTGATE CYLINDER SWITCH VOLTAGE LOW
LIFTGATE CYLINDER SWITCH GROUND OPEN
LIFTGATE CYLINDER SWITCH MUX OPEN
LIFTGATE CYLINDER SWITCH OPEN
CYLINDER LOCK SWITCH MUX SHORT TO VOLTAGE
BODY CONTROL MODULE - LIFTGATE CYLINDER LOCK SWITCH MUX SHORT TO VOLTAGE
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 OPEN OR SHORT TO VOLT-
AGE?
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 SW voltage.
Does the DRBIII
t display 4.2 volts or greater?
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.
768
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
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.
4
Disconnect the Liftgate Cylinder Switch connector.
Measure the voltage between Cylinder Lock Switch Mux circuit and ground.
Select the voltage present.
All
Below 1.2 volts.
Repair the Liftgate Cylinder Lock Switch Mux circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
Between 1.3 volts and 5.2 volts.
Replace the Liftgate Cylinder Switch.
Perform BODY VERIFICATION TEST - VER 1.
Above 5.3 volts.
5
Disconnect the Liftgate Cylinder Door Lock Switch connector.
Disconnect the Body Control Module C3 connector.
NOTE: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Measure the voltage between Liftgate Cylinder Lock Switch Mux circuit and ground.
Is there any voltage present?
All
Yes
→ Repair the Cylinder Lock Switch Mux circuit for a short to
voltage.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
769
POWER DOOR LOCKS/RKE
LIFTGATE CYLINDER LOCK SWITCH INPUT OPEN OR SHORT TO
VOLTAGE - (EXPORT ONLY) —
Continued
Symptom:
LIFTGATE CYLINDER LOCK SWITCH INPUT SHORT - (EXPORT
ONLY)
When Monitored and Set Condition:
LIFTGATE CYLINDER LOCK SWITCH INPUT SHORT - (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 is below .5 volts
for over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
LIFTGATE CYLINDER SWITCH SHORTED
LIFTGATE CYLINDER LOCK SWITCH MUX CIRCUIT SHORTED
BODY CONTROL MODULE - LIFTGATE CYLINDER LOCK SWITCH MUX SHORTED
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 LOCK SW INPUT SHORT?
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
Disconnect the Liftgate Cylinder Switch connector.
With the DRBIII
t in Sensors, read the LGATE CYL SW voltage.
Is the voltage above 4.6 volts?
All
Yes
→ Replace the Liftgate Cylinder Switch.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
770
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
3
Disconnect the Liftgate Cylinder Switch connector.
Disconnect the Body Control Module C3 connector.
Measure the resistance between Cylinder Lock Switch Mux circuit and ground.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Liftgate Cylinder Lock Switch Mux 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
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.
771
POWER DOOR LOCKS/RKE
LIFTGATE CYLINDER LOCK SWITCH INPUT SHORT - (EXPORT ONLY)
—
Continued
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