Dodge 2000 DURANGO Service Manual page 392

8K - 8 WIPER AND WASHER SYSTEMS
DIAGNOSIS AND TESTING (Continued)
(5) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Move the Central Timer Module (CTM) from its
mounting position far enough so that the CTM wire
harness connectors can be accessed. Refer to Central
Timer Module in the Removal and Installation sec-
tion of Group 8E - Instrument Panel Systems for the
procedures. Unplug the 14-way wire harness connec-
tor from the CTM. Connect the battery negative
cable. Turn the ignition switch to the On position.
With the washer switch depressed, check for battery
voltage at the washer switch sense circuit cavity of
the 14-way CTM wire harness connector. If OK, see
Intermittent Wipe Relay in the Diagnosis and Test-
ing section of this group. If not OK, repair the open
circuit as required.
REAR
The diagnosis found here addresses an inoperative
rear washer pump. If the washer pump operates, but
no washer fluid is emitted from the washer nozzle, be
certain to check the fluid level in the reservoir. Check
for ice or other foreign material in the reservoir, and
for pinched, disconnected, broken, or incorrectly
routed washer system plumbing. For circuit descrip-
tions and diagrams, refer to 8W-53 - Wipers in Group
8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, REFER TO
RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING WHEEL,
INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-
BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.
(1) Turn the ignition switch to the On position.
Place the rear wiper and washer switch in the Wipe
position. Check whether the rear wiper is operating.
If OK, go to Step 2. If not OK, see Wiper System in
the Diagnosis and Testing section of this group.
(2) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Unplug the rear washer pump wire harness connec-
tor. Check for continuity between the ground circuit
cavity of the rear washer pump wire harness connec-
tor and a good ground. There should be continuity. If
OK, go to Step 3. If not OK, repair the open circuit to
ground as required.
(3) Connect the battery negative cable. Turn the
ignition switch to the On position. Check for battery
voltage at the rear washer motor control circuit cav-
ity of the rear washer pump wire harness connector
while the rear washer switch is actuated. If OK,
replace the faulty pump. If not OK, go to Step 4.
GROUP 8M - PASSIVE
STEERING COLUMN,
(4) Turn the ignition switch to the Off position.
Disconnect and isolate the battery negative cable.
Unplug the rear wiper and washer switch wire har-
ness connector. Unplug the wire harness connector at
the rear wiper motor. Check for continuity between
the rear washer motor control circuit cavity of the
rear washer pump wire harness connector and a good
ground. There should be no continuity. If OK, go to
Step 5. If not OK, repair the short circuit as
required.
(5) Check for continuity between the rear washer
motor control circuit cavities of the rear washer
pump wire harness connector and the rear wiper and
washer switch wire harness connector. There should
be continuity. If OK, replace the faulty switch. If not
OK, repair the open circuit as required.
WIPER SWITCH AND WASHER SWITCH
FRONT
See Wiper System and/or Washer System in the
Diagnosis and Testing section of this group before
testing the multi-function switch. For circuit descrip-
tions and diagrams, refer to 8W-53 - Wipers in Group
8W - Wiring Diagrams.
WARNING: ON VEHICLES EQUIPPED WITH AN AIR-
BAG, REFER TO GROUP 8M - PASSIVE RESTRAINT
SYSTEMS BEFORE ATTEMPTING ANY STEERING
WHEEL, STEERING COLUMN, OR INSTRUMENT
PANEL COMPONENT DIAGNOSIS OR SERVICE.
OR
FAILURE TO TAKE THE PROPER PRECAUTIONS
COULD RESULT IN ACCIDENTAL AIRBAG DEPLOY-
MENT AND POSSIBLE PERSONAL INJURY.
(1) Disconnect and isolate the battery negative
cable.
(2) Unplug the multi-function switch wire harness
connector from the multi-function switch.
(3) Using an ohmmeter, perform the switch conti-
nuity checks at the switch terminals as shown in the
Multi-Function Switch Continuity chart (Fig. 2).
(4) If the switch fails any of the continuity checks,
replace the faulty switch. If the switch is OK, repair
the wiper system and/or washer system wire harness
circuits as required.
REAR
Perform the diagnosis for the rear wiper system
and/or washer system as described in this group
before testing the rear wiper and washer switch. For
circuit descriptions and diagrams, see 8W-53 - Wip-
ers in Group 8W - Wiring Diagrams.
DN