
Dodge Durango
Service Manual
Power Lock Systems » Diagnosis and testing
Power lock system and remote keyless entry system
As a preliminary diagnosis for vehicles with the
power lock and Remote Keyless Entry (RKE) systems
(high-line version of the Central Timer Module), note
the system operation while you actuate both the Lock
and Unlock functions with the power lock switches
and the RKE transmitter. Then, proceed as follows:
- If the driver side front door power lock motor
fails to unlock following a single press of the RKE
transmitter Unlock button, test the driver unlock
relay. See Relays in the Diagnosis and Testing section
of this group for the procedures.
- If the entire power lock system fails to function
with either the power lock switches or the RKE
transmitter, check the fuses in the junction block.
- If the entire power lock system fails to function
with either the power lock switches or the RKE
transmitter, check the fuses in the junction block.
- If the entire power lock system functions with
the RKE transmitter, but not with one or both of the
power lock switches, see Power Lock Switch in the
Diagnosis and Testing section of this group.
- If one power lock motor fails to operate with
both of the power lock switches and/or the RKE
transmitter, see Power Lock Motor in the Diagnosis
and Testing section of this group.
If the problem being diagnosed involves only the
RKE horn chirp or panic mode features, test the horn
relay and/or headlamp relay. See Relays in the Diagnosis
and Testing section of this group for the procedures.
If both of these relays check OK, further
diagnosis should be performed using a DRB scan tool
as described in the proper Diagnostic Procedures
manual.
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Power lock system and remote keyless entry system