Chrysler Concorde 2004 Service Manual page 506

POWER DOOR LOCKS/RKE
*ALL DOORS FAILING TO LOCK AND UNLOCK FROM ONE SWITCH —
Continued
TEST
4 Disconnect the inoperative Door Cylinder Lock Switch connector.
Disconnect the BCM C4 connector.
Measure the resistance of the Cylinder Lock Switch Mux circuit between the Switch
connector and the BCM C4 connector.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the Door Cylinder Lock Switch Mux circuit for an open.
No
5 Disconnect the inoperative Door Cylinder Lock Switch connector.
Connect a jumper wire between the appropriate Cylinder Lock Switch Mux circuit
and Fused B(+).
With the DRBIII in Sensors, read the appropriate Door Arm/Disarm Switch voltage.
Is the voltage above 9.0 volts?
Yes → Replace the appropriate Door Cylinder Lock Switch.
→ Go To 6
No
6 If there are no possible causes remaining, view repair.
Repair
7 Disconnect the inoperative Power Door Lock Switch connector.
Measure the voltage between the Fused B(+) circuit and ground.
Is the voltage above 10.0 volts?
Yes → Go To 8
→ Repair the Fused B(+) circuit for an open.
No
8 Disconnect the inoperative Door Lock Switch connector.
Disconnect the BCM C4 connector.
Measure the resistance between ground and the Door Switch Mux circuit.
Is the resistance below 1000.0 ohms?
Yes → Repair the Door Switch Mux circuit for a short to ground.
→ Go To 9
No
9 Disconnect the inoperative Power Door Lock Switch connector.
Disconnect the Body Control Module C4 connector.
Measure the resistance of the Door Switch Mux circuit between the Door Lock Switch
connector and the BCM C4 connector.
Is the resistance below 5.0 ohms?
Yes → Go To 10
→ Repair the Door Switch Mux circuit for an open.
No
ACTION
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Replace the Body Control Module.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
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APPLICABILITY
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