Chrysler Town, Dodge Caravan. Manual — part 882
Symptom:
LEFT CYLINDER LOCK SWITCH INPUT STUCK
When Monitored and Set Condition:
LEFT CYLINDER LOCK SWITCH INPUT STUCK
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 for over 10 seconds.
POSSIBLE CAUSES
DTC PRESENT
BODY CONTROL MODULE - LEFT CYLINDER LOCK SWITCH VOLTAGE INCORRECT
LEFT CYLINDER LOCK SWITCH GROUND OPEN
LEFT 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.
Cycle the ignition switch from ON to OFF to ON.
With the DRBIII
t, read DTC’s.
Remove the key and operate the door lock several times from the Left Cylinder Lock
Switch while monitoring the DRBIII
t.
Wait 10 seconds.
Does the DRBIII
t display LEFT CYL LOCK 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 LEFT 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 Left Cylinder Lock 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.
764
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
4
Disconnect the Left 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 Left 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.
765
POWER DOOR LOCKS/RKE
LEFT CYLINDER LOCK SWITCH INPUT STUCK —
Continued
Symptom:
LEFT UNLOCK OUTPUT FAILURE
When Monitored and Set Condition:
LEFT UNLOCK OUTPUT FAILURE
When Monitored:
At all times when battery power is supplied to the Body Control
Module.
Set Condition:
When the BCM senses a short condition on the left side door unlock
circuits for over 125 milliseconds.
POSSIBLE CAUSES
DTC PRESENT
BODY CONTROL MODULE - LEFT DOOR UNLOCK DRIVER SHORT TO GROUND
LEFT FRONT DOOR UNLOCK DRIVER SHORT TO GROUND
LEFT SLIDING DOOR UNLOCK DRIVER SHORT TO GROUND
LEFT FRONT DOOR LOCK MOTOR - SHORT TO GROUND
LEFT SLIDING DOOR LOCK MOTOR - SHORT TO GROUND
TEST
ACTION
APPLICABILITY
1
NOTE: When this code is present all unlock outputs may be turned off.
With the DRBIII
t, record and erase DTC’s.
With the DRBIII
t, read DTC’s.
Operate the door locks several times from the Driver Door Lock Switch while
monitoring the DRBIII
t.
Does the DRBIII
t display LEFT UNLOCK OUTPUT FAILURE?
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 Body Control Module C2 connector.
Measure the resistance between ground and the Left Front Door Unlock Driver
circuit and then the Left Sliding Door Unlock Driver circuit.
Select the appropriate reading.
All
Left Front Door Unlock under 1000.0 ohms
Left Sliding Door Unlk under 1000.0 ohms
Neither circuit under 1000.0 ohms.
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
766
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
3
Disconnect the Body Control Module C2 connector.
Disconnect the Left Front Door Lock Motor/Ajar Switch connector.
Measure the resistance between ground and the Left Front Door Unlock Driver
circuit.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Left Front Door Unlock Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Door Lock Motor.
Perform BODY VERIFICATION TEST - VER 1.
4
Disconnect the Body Control Module C2 connector.
Disconnect the Left Sliding Door Lock Motor connector.
Measure the resistance between ground and the Left Sliding Door Unlock Driver
circuit.
Is the resistance below 1000.0 ohms?
All
Yes
→ Repair the Left Sliding Door Unlock Driver circuit for a short to
ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Replace the Sliding Door Lock Motor (latch assembly).
Perform BODY VERIFICATION TEST - VER 1.
767
POWER DOOR LOCKS/RKE
LEFT UNLOCK OUTPUT FAILURE —
Continued
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