Dodge Durango (DN). Manual — part 297

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,

REFER

TO

GROUP

8M

-

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

OR

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) 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(s).

(2) Disconnect and isolate the battery negative

cable. Remove the instrument panel lower bezel and
unplug the wire harness connector from the rear win-
dow switch pod. Connect the battery negative cable.
Turn the ignition switch to the On position. Check
for battery voltage at the fused ignition switch out-
put (run) circuit cavity of the rear window switch pod
wire harness connector. If OK, go to Step 3. If not
OK, repair the open circuit to the junction block as
required.

(3) Turn the ignition switch to the Off position.

Disconnect and isolate the battery negative cable.
Check for continuity between the ground circuit cav-
ity of the rear window switch pod wire harness con-
nector

and

a

good

ground.

There

should

be

continuity. If OK, go to Step 4. If not OK, repair the
open circuit to ground as required.

(4) Test the rear wiper and washer switch continu-

ity. See Wiper Switch and Washer Switch in the
Diagnosis and Testing section of this group for the
procedures. If OK, go to Step 5. If not OK, replace
the faulty rear window switch pod.

(5) Remove the liftgate trim panel and unplug the

rear wiper motor wire harness connector. Connect
the battery negative cable. Check for battery voltage
at the fused B(+) circuit cavity of the rear wiper
motor wire harness connector. If OK, go to Step 6. If
not OK, repair the open circuit to the junction block
as required.

(6) Turn the ignition switch to the Off position.

Disconnect and isolate the battery negative cable.
Check for continuity between the ground circuit cav-
ity of the rear wiper motor wire harness connector
and a good ground. There should be continuity. If
OK, go to Step 7. If not OK, repair the open circuit to
ground as required.

(7) Check for continuity between the rear wiper

motor control circuit cavity of the rear wiper motor
wire harness connector and a good ground. There
should be no continuity. If OK, go to Step 8. If not
OK, repair the short circuit as required.

(8) Check for continuity between the rear wiper

motor control circuit cavities of the rear wiper motor
wire harness connector and the rear window switch

pod wire harness connector. There should be continu-
ity. If OK, replace the faulty rear wiper motor. If not
OK, repair the open circuit as required.

WASHER SYSTEM

FRONT

The diagnosis found here addresses an inoperative

washer pump or wipe-after-wash feature. If the
washer pump operates, but no washer fluid is emit-
ted from the washer nozzles, be certain to check the
fluid level in the reservoir. Check for ice or other for-
eign material in the reservoir, and for pinched, dis-
connected, broken, or incorrectly routed washer
system plumbing. For circuit descriptions and dia-
grams, refer to 8W-53 - Wipers in Group 8W - Wiring
Diagrams.

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,

REFER

TO

GROUP

8M

-

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

OR

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.

Turn the wiper switch to the Low or High speed posi-
tion. Check whether the wipers operate. If OK, go to
Step 2. If not OK, see Wiper System in the Diagnosis
and Testing section of this group.

(2) Turn the wiper switch to the Off position.

Depress the washer switch. The washer pump should
operate and the wipers should operate for as long as
the washer switch is depressed. The wipers should
continue to operate for about three sweep cycles after
the switch is released before they park. If the wipers
are OK, but the washers are not, go to Step 3. If the
washers are OK, but the wipers are not, go to Step 5.

(3) Turn the ignition switch to the Off position.

Disconnect and isolate the battery negative cable.
Unplug the washer pump wire harness connector.
Measure the resistance between the ground circuit
cavity of the washer pump wire harness connector
and a good ground. The meter should read zero
ohms. If OK, go to Step 4. If not OK, repair the cir-
cuit to ground as required.

(4) Connect the battery negative cable. Turn the

ignition switch to the On position. With the washer
switch depressed, measure the voltage at the washer
switch output circuit cavity of the washer pump wire
harness connector. The meter should read battery
voltage. If OK, replace the faulty pump. If not OK,
repair the open circuit as required.

DN

WIPER AND WASHER SYSTEMS

8K - 7

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

GROUP

8M

-

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

OR

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.

(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.
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.

8K - 8

WIPER AND WASHER SYSTEMS

DN

DIAGNOSIS AND TESTING (Continued)

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,

REFER

TO

GROUP

8M

-

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

OR

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) Remove the lower bezel from the instrument

panel and unplug the rear window switch pod wire
harness connector.

(2) Using an ohmmeter, check the rear wiper and

washer switch continuity at the rear window switch
pod terminals as shown in the Rear Wiper Switch
and Washer Switch Continuity chart (Fig. 3).

(3) If the switch fails any of the continuity checks,

replace the faulty rear window switch pod. If the
switch is OK, repair the rear wiper system and/or
washer system wire harness circuits as required.

INTERMITTENT WIPE RELAY

For circuit descriptions and diagrams, refer to

8W-53 - Wipers in Group 8W - Wiring Diagrams.

WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS,

REFER

TO

GROUP

8M

-

PASSIVE

RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY
STEERING

WHEEL,

STEERING

COLUMN,

OR

INSTRUMENT PANEL COMPONENT DIAGNOSIS OR
SERVICE. FAILURE TO TAKE THE PROPER PRE-
CAUTIONS COULD RESULT IN ACCIDENTAL AIR-

BAG DEPLOYMENT AND POSSIBLE PERSONAL
INJURY.

RELAY TEST

The intermittent wipe relay (Fig. 4) is located in

the Power Distribution Center (PDC) in the engine
compartment. Refer to the PDC label for intermittent
wipe relay identification and location.

Remove the intermittent wipe relay from the PDC

as described in the Removal and Installation section
of this group to perform the following tests:

(1) A relay in the de-energized position should

have continuity between terminals 87A and 30, and
no continuity between terminals 87 and 30. If OK, go
to Step 2. If not OK, replace the faulty relay.

(2) Resistance between terminals 85 and 86 (elec-

tromagnet) should be 75

6 5 ohms. If OK, go to Step

3. If not OK, replace the faulty relay.

(3) Connect a battery to terminals 85 and 86.

There should now be continuity between terminals
30 and 87, and no continuity between terminals 87A
and 30. If OK, see Relay Circuit Test in the Diagno-
sis and Testing section of this group. If not OK,
replace the faulty relay.

Fig. 2 Multi-Function Switch Continuity

Fig. 3 Rear Wiper Switch and Washer Switch

Continuity

REAR WINDOW SWITCH POD

SWITCH POSITION

CONTINUITY

BETWEEN

OFF

3 & 4 (LAMPS)

WIPER SWITCH ON

2 & 7

WASHER SWITCH

ON DEPRESSED

7 & 8

LAMPS

3 & 4

DN

WIPER AND WASHER SYSTEMS

8K - 9

DIAGNOSIS AND TESTING (Continued)

RELAY CIRCUIT TEST

(1) The relay common feed terminal cavity (30) is

connected to the wiper (multi-function) switch. There
should be continuity between the cavity for relay ter-
minal 30 and the two fused ignition switch output
circuit cavities of the multi-function switch wire har-
ness connector at all times. If OK, go to Step 2. If not
OK, repair the open circuit(s) to the multi-function
switch as required.

(2) The relay normally closed terminal (87A) is

connected to terminal 30 in the de-energized position.
There should be continuity between the cavity for
relay terminal 87A and the wiper park switch sense
circuit cavities of the wiper motor wire harness con-
nector and the 14-way Central Timer Module (CTM)
wire harness connector at all times. If OK, go to Step
3. If not OK, repair the open circuit(s) to the wiper
motor and CTM as required.

(3) The relay normally open terminal (87) is con-

nected to the common feed terminal (30) in the ener-
gized position. There should be battery voltage at the
cavity for relay terminal 87 with the ignition switch
in the On or Accessory positions. If OK, go to Step 4.
If not OK, repair the open circuit to the ignition
switch as required.

(4) The coil battery terminal (86) is connected to

the electromagnet in the relay. There should be bat-
tery voltage at the cavity for relay terminal 86 with
the ignition switch in the On or Accessory positions.
If OK, go to Step 5. If not OK, repair the open circuit
to the ignition switch as required.

(5) The coil ground terminal (85) is connected to

the electromagnet in the relay. It is grounded by the
CTM to energize the relay and cycle the wiper motor.
Check for continuity between the cavity for relay ter-
minal 85 and the intermittent wiper relay control cir-
cuit

cavity

of

the

14-way

CTM

wire

harness

connector. There should be continuity. If OK, replace
the faulty base version CTM; or, use a DRB scan tool

and the proper Diagnostic Procedures manual for
diagnosis of the high-line version CTM. If not OK,
repair the open circuit to the CTM as required.

REMOVAL AND INSTALLATION

WIPER BLADE

FRONT

NOTE: The driver side and passenger side wiper
blades are not interchangeable. The driver side
wiper blade has an extra bridge and eight pairs of
claws securing the wiper element. The passenger
side wiper blade has six pairs of claws securing the
wiper element. The notched retainer end of both
wiper elements should always be oriented towards
the end of the wiper blade that is nearest to the
wiper pivot.

(1) Turn the windshield wiper switch to the On

position. By turning the ignition switch to the On
and Off positions, cycle the wiper blades to a conve-
nient working location on the windshield.

(2) Lift the wiper arm to raise the wiper blade and

element off of the windshield glass.

(3) To remove the wiper blade from the wiper arm,

push the release tab under the arm tip and slide the
blade away from the tip towards the pivot end of the
arm (Fig. 5).

(4) To install the wiper blade on the wiper arm,

slide the blade retainer into the U-shaped formation
on the tip of the wiper arm until the release tab
snaps into its locked position. Be certain that the
notched retainer for the wiper element is oriented
towards the end of the wiper blade that is nearest to
the wiper pivot.

TERMINAL LEGEND

NUMBER

IDENTIFICATION

30

COMMON FEED

85

COIL GROUND

86

COIL BATTERY

87

NORMALLY OPEN

87A

NORMALLY CLOSED

Fig. 4 Intermittent Wipe Relay

Fig. 5 Windshield Wiper Blade Remove/Install -

Typical

1 – RELEASE TAB

8K - 10

WIPER AND WASHER SYSTEMS

DN

DIAGNOSIS AND TESTING (Continued)