Dodge Ram. Manual — part 123
TEST
ACTION
APPLICABILITY
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the door lock motor.
Perform BODY VERIFICATION TEST - VER 1.
489
POWER DOOR LOCKS/RKE
*LEFT DOORS FAIL TO LOCK AND UNLOCK - QUAD CAB —
Continued
Symptom:
*ONE DOOR LOCK MOTOR INOPERATIVE
POSSIBLE CAUSES
DOOR LOCK MOTOR OPEN
CHECK DOOR LOCK MOTOR CIRCUIT
TEST
ACTION
APPLICABILITY
1
With the DRBIII
t, read DTCs. If there are any door lock related DTC’s, refer to
symptom list for problems related to Power Door Locks.
Disconnect the inoperative Door Lock Motor/Ajar Switch connector.
Connect a 12 volt test light between the Door Lock Driver and the Door Unlock
Driver circuits in the motor connector.
Operate the door locks several time in the lock and unlock positions from a door lock
switch and observe the test light.
Does the test light illuminate brightly when the locks are actuated in both directions?
All
Yes
→ Replace the door lock motor.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Repair the Door Lock Driver or Door Unlock Driver circuit for an
open.
Perform BODY VERIFICATION TEST - VER 1.
490
POWER DOOR LOCKS/RKE
Symptom:
*RIGHT DOORS FAIL TO LOCK AND UNLOCK - QUAD CAB
POSSIBLE CAUSES
DTC PRESENT
INSTRUMENT CLUSTER - DOOR LOCK DRIVER RIGHT DOORS OPEN
DOOR UNLOCK DRIVER RIGHT DOORS WIRE OPEN
DOOR LOCK DRIVER RIGHT DOORS WIRE OPEN
DOOR LOCK MOTOR
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTC’s.
Does the DRBIII
t display any Door Lock related DTC’s?
All
Yes
→ Refer to symptom list for problems related to Power Door Locks.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 2
2
Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Connect a jumper wire between the Door Unlock Driver Right Doors circuit in the
Instrument Cluster C1 connector and ground.
Momentarily connect a fused jumper wire between the Fused B+ circuit and the Door
Lock Driver Right Doors circuit in the Instrument Cluster C1 connector.
Reverse the jumper wires to drive the motors in the opposite direction.
Did the right doors lock and unlock?
All
Yes
→ Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Disconnect a right side Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Lock Driver Right Doors circuit between the
Instrument Cluster C1 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 4
No
→ Repair the Door Lock Driver Right Doors circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
4
Turn the ignition off.
Disconnect the Instrument Cluster C1 connector.
Disconnect a right side Door Lock Motor/Ajar Switch connector.
Measure the resistance of the Door Unlock Driver Right Doors circuit between the
Instrument Cluster C1 connector and the Door Lock Motor connector.
Is the resistance below 5.0 ohms?
All
Yes
→ Go To 5
No
→ Repair the Door Unlock Driver Right Doors wire for an open.
Perform BODY VERIFICATION TEST - VER 1.
491
POWER DOOR LOCKS/RKE
TEST
ACTION
APPLICABILITY
5
If there are no possible causes remaining, view repair.
All
Repair
Replace the Door Lock Motor(s).
Perform BODY VERIFICATION TEST - VER 1.
492
POWER DOOR LOCKS/RKE
*RIGHT DOORS FAIL TO LOCK AND UNLOCK - QUAD CAB —
Continued
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