Dodge Dakota Sport 2001 Service Manual page 574

AN
WIPERS/WASHERS (Continued)
tions indicated in the tests below, and check for bat-
tery voltage at the appropriate cavity of the
headlamp and dash wire harness connector for the
wiper motor.
(a) Check for battery voltage at the fused igni-
tion switch output (run-acc) circuit cavity of the
headlamp and dash wire harness connector for the
wiper module with the multi-function switch in
any position. If OK, go to Step b. If not OK, repair
the open fused ignition switch output (run-acc) cir-
cuit between the wiper module and the JB as
required.
(b) Check for battery voltage at the front wiper
low speed circuit cavity of the headlamp and dash
wire harness connector for the wiper module with
the multi-function switch in the Lo position. If OK,
go to Step c. If not OK, repair the open front wiper
low speed circuit between the wiper module and
the multi-function switch as required.
(c) Check for battery voltage at the front wiper
high speed circuit cavity of the headlamp and dash
wire harness connector for the wiper module with
the multi-function switch in the Hi position. If OK,
go to Step d. If not OK, repair the open front wiper
high speed circuit between the wiper module and
the multi-function switch as required.
(d) Check for battery voltage at the front wiper
park switch sense circuit cavity of the headlamp
and dash wire harness connector for the wiper
module with the multi-function switch in the Lo or
Hi position, then move the switch to the Off posi-
tion. The meter should switch between battery
voltage and zero volts while the wipers are cycling.
The meter should read battery voltage when the
switch is first moved to the Off position until the
wipers park, and then read a steady zero volts. If
not OK, replace the faulty wiper module.
WASHER SYSTEM
The diagnosis found here addresses an electrically
inoperative washer system. However, these tests may
not prove conclusive in the diagnosis of the Central
Timer Module (CTM). In order to obtain conclusive
testing of the CTM, the Programmable Communica-
tions Interface (PCI) data bus network and all of the
electronic modules that provide inputs to or receive
outputs from the washer system components must be
checked. The most reliable, efficient, and accurate
means to diagnose the CTM requires the use of a
DRBIII scan tool. Refer to the appropriate diagnos-
tic information. If the washer pump/motor operates,
but no washer fluid is emitted from the washer noz-
zles, be certain to check the fluid level in the reser-
voir. Also inspect the washer system components as
required. (Refer to 8 - ELECTRICAL/WIPERS/
WASHERS - INSPECTION). Refer to the appropriate
wiring information. The wiring information includes
wiring diagrams, proper wire and connector repair
procedures, details of wire harness routing and
retention, connector pin-out information and location
views for the various wire harness connectors, splices
and grounds.
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAGS, DISABLE THE AIRBAG SYSTEM BEFORE
ATTEMPTING ANY STEERING WHEEL, STEERING
COLUMN, SEAT BELT TENSIONER, OR INSTRU-
MENT PANEL COMPONENT DIAGNOSIS OR SER-
VICE. DISCONNECT AND ISOLATE THE BATTERY
NEGATIVE (GROUND) CABLE, THEN WAIT TWO
MINUTES FOR THE AIRBAG SYSTEM CAPACITOR
TO DISCHARGE BEFORE PERFORMING FURTHER
DIAGNOSIS OR SERVICE. THIS IS THE ONLY SURE
WAY TO DISABLE THE AIRBAG SYSTEM. FAILURE
TO TAKE THE PROPER PRECAUTIONS COULD
RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT
AND POSSIBLE PERSONAL INJURY.
(1) Turn the ignition switch to the On position.
Turn the multi-function switch wiper control knob to
the Lo or Hi speed position. Check whether the wip-
ers operate. If OK, go to Step 2. If not OK, repair the
wiper system as required before proceeding with the
following tests. Refer to WIPER SYSTEM .
(2) Turn the multi-function switch wiper control
knob to the Off position. Depress the control knob to
the Wash position. The washer pump should operate
and the wipers should operate for as long as the con-
trol knob is depressed. The wipers should continue to
operate for about three sweep cycles after the control
knob 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.
Disconnect the headlamp and dash wire harness con-
nector for the washer pump/motor from the motor
connector receptacle. Measure the resistance between
the ground circuit cavity of the headlamp and dash
wire harness connector for the washer pump/motor
and a good ground. The meter should read zero
ohms. If OK, go to Step 4. If not OK, repair the open
ground circuit to ground (G112) as required.
(4) Reconnect the battery negative cable. Turn the
ignition switch to the On position. With the control
knob of the multi-function switch depressed to the
Wash position, check for battery voltage at the front
washer pump/motor control circuit cavity of the head-
lamp and dash wire harness connector for the washer
pump/motor. If OK, replace the faulty washer pump/
motor. If not OK, repair the open front washer pump/
motor control circuit between the washer pump/
motor and the CTM as required.
WIPERS/WASHERS 8R - 5