Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 585
Possible Causes
(P392) DOOR LOCK DRIVER CIRCUIT OPEN
(P303) PASSENGER DOOR UNLOCK DRIVER CIRCUIT OPEN
CLUSTER
Theory of Operation
This test is only for Left Hand Drive vehicles because on the Right Hand Drive vehicles the Right Rear door lock is
connected with the Left Front door and the Left Rear door lock is connected with the Right Front (driver) door.
Diagnostic Test
1.
CHECK (P392) DOOR LOCK DRIVER CIRCUIT FOR AN OPEN
NOTE: Graphics show Right Front Latch, Right Rear is similar.
Turn the ignition off.
Remove either right door inner trim panels to gain access to the door
latch connector.
Disconnect the Right Door Latch connector.
Disconnect the Instrument Cluster C1 connector.
Measure the resistance of the (P392) Door Lock Driver circuit between
the Cluster C1 connector and the Right Door Latch connector.
Is the resistance below 2.0 ohms?
Yes
>> Go To 2
No
>> Repair the (P392) Door Lock Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
8N - 38
POWER LOCKS - ELECTRICAL DIAGNOSTICS
LX
2.
CHECK (P303) PASSENGER DOORS UNLOCK DRIVER CIRCUIT FOR AN OPEN
Measure the resistance of the (P303) Passenger Doors Unlock Driver
circuit.
Is the resistance below 2.0 ohms?
Yes
>> Replace the Cluster in accordance with service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
No
>> Repair the (P303) Passenger Doors Unlock Driver circuit
for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
LX
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 39
*LEFT DOOR LOCKS INOPERATIVE – (LHD ONLY)
For a complete wiring diagram Refer to Section 8W.
8N - 40
POWER LOCKS - ELECTRICAL DIAGNOSTICS
LX
Possible Causes
(P393) DOOR LOCK DRIVER CIRCUIT OPEN
(P303) PASSENGER DOOR UNLOCK DRIVER CIRCUIT OPEN
CLUSTER
Theory of Operation
This test is only for Left Hand Drive vehicles because on the Right Hand Drive vehicles the Right Rear door lock is
connected with the Left Front door and the Left Rear door lock is connected with the Right Front (driver) door.
Diagnostic Test
1.
CHECK (P393) DOOR LOCK DRIVER CIRCUIT FOR AN OPEN
Turn the ignition off.
Remove the left door inner trim panel to gain access to the door latch
connector.
Disconnect the Left Rear Door Latch connector.
Disconnect the Instrument Cluster C1 connector.
Measure the resistance of the (P393) Door Lock Driver circuit between
the Cluster C1 connector and the Left Rear Door Latch connector.
Is the resistance below 2.0 ohms?
Yes
>> Go To 2
No
>> Repair the (P393) Door Lock Driver circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST – VER 1).
LX
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 41
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