Dodge 2000 DURANGO Service Manual page 462

8P - 6 POWER LOCK SYSTEMS
DIAGNOSIS AND TESTING (Continued)
PASSENGER SIDE LOCK SWITCH
SWITCH POSITION
OFF
LOCK
UNLOCK
LAMP (LED)
Fig. 2 Power Lock Switch Continuity - Passenger
CENTRAL TIMER MODULE
NOTE: The following tests may not prove conclu-
sive in the diagnosis of the high-line version of the
Central Timer Module (CTM). The most reliable, effi-
cient, and accurate means to diagnose the high-line
CTM requires the use of a DRBIII scan tool and the
proper Diagnostic Procedures manual.
If the problem being diagnosed involves only the
RKE horn chirp feature, see Relays in the Diagnosis
and Testing section of this group to test the horn
relay before testing the CTM. If the relay checks OK;
or if the problem being diagnosed involves the rolling
door locks, door lock inhibit, central locking or
enhanced accident response features, further diagno-
sis of the CTM should be performed using a DRBIII
scan tool as described in the proper Diagnostic Pro-
cedures manual. If the problem being diagnosed
involves only the RKE driver unlock feature, be cer-
tain that the feature is enabled using a DRBIII scan
tool and the proper Diagnostic Procedures manual.
Also, if the problem being diagnosed involves only
the driver side front door, see Relays in the Diagnosis
and Testing section of this group to test the driver
unlock relay before testing the CTM. For circuit
descriptions and diagrams, refer to 8W-61 - Power
Door Locks in Group 8W - Wiring Diagrams.
CONTINUITY
BETWEEN
4 & 5 (LED)
1 & 2
2 & 6
4 & 5
Side
(1) Check the fuses in the junction block. If OK, go
to Step 2. If not OK, repair the shorted circuit or
component as required and replace the faulty fuse.
(2) Check for battery voltage at the fuse in the
junction block. If OK, go to Step 3. If not OK, repair
the open circuit to the Power Distribution Center
(PDC) as required.
(3) Disconnect and isolate the battery negative
cable. Remove the Central Timer Module (CTM) from
its mounting bracket to access the CTM wire harness
connectors. Refer to Central Timer Module in the
Removal and Installation section of Group 8E -
Instrument Panel Systems for the procedures.
(4) Unplug the wire harness connectors from the
CTM. Check the wire harness connectors and the
receptacles in the CTM for loose, corroded, or dam-
aged terminals and pins. If OK, go to Step 5. If not
OK, repair as required.
(5) Probe the ground circuit cavity of the 14-way
CTM wire harness connector and check for continuity
to a good ground. Repeat the check between the
ground circuit cavity of the 18-way CTM wire har-
ness connector and a good ground. In each case,
there should be continuity. If OK, go to Step 6. If not
OK, repair the open circuit(s) to ground as required.
(6) Connect the battery negative cable. Check for
battery voltage at the fused B(+) circuit cavity of the
14-way CTM wire harness connector. If OK, go to
Step 7. If not OK, repair the open circuit to the junc-
tion block as required.
(7) Probe the door lock switch output (lock) circuit
cavity of the 18-way CTM wire harness connector
and check for battery voltage as you actuate each
power lock switch to the Lock position. If OK, go to
Step 8. If not OK, repair the open circuit from either
or both power lock switch(es) to the CTM as
required.
(8) Probe the door lock switch output (unlock) cir-
cuit cavity of the 18-way CTM wire harness connec-
tor and check for battery voltage as you actuate each
power lock switch to the Unlock position. If OK, go to
Step 9. If not OK, repair the open circuit from either
or both power lock switch(es) to the CTM as
required.
(9) Disconnect and isolate the battery negative
cable. Reinstall the wire harness connectors to the
CTM. Connect the battery negative cable. Back-probe
the door lock driver circuit cavity of the 18-way CTM
wire harness connector and check for battery voltage
as either power lock switch is moved to the Lock
position. Repeat the test pressing the Lock button of
the Remote Keyless Entry (RKE) transmitter. If OK,
go to Step 10. If not OK using the power lock switch,
but OK with the RKE transmitter, see Power Lock
Switch in the Diagnosis and Testing section of this
group. If not OK using the RKE transmitter, but OK
DN