QuestionMy wipers will only work on the fast setting, They do not work on the slow or intermittent setting. Is this a fuse problem or a motor problem.
Thanks in advance
AnswerHi
I would suspect one of 2 things. I will say, it should be properly diagnosed before replacing parts....
The wiper motor cover (wiper module) MAY be at fault.
This contains the circuitry that controls power flow to the motor.
The wiper switch inside vehicle (aka the Multi function switch)
This is the 2 items.
Here is the diagnostics to assist in pinpointing problem...
Hope it helps
Pawl
Step
Action
Value(s)
Yes
No
2
Turn the ignition switch to RUN.
Set the wiper switch to LO.
Backprobe from the wiper/washer switch connector C201, terminal E2, to ground with a DMM.
Does the voltage measure greater than the specified value?
1.0 V
Go to Step 5
Go to Step 3
3
Inspect for a poor connection at connector C201, or for an open in the pigtail to the wiper/washer switch. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 13
Go to Step 4
4
Replace the wiper/washer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .
Did you complete the replacement?
--
Go to Step 13
--
5
Backprobe from the wiper/washer switch connector C201, terminal E3, to ground with a DMM.
Does the voltage measure greater than the specified value?
1.0 V
Go to Step 8
Go to Step 6
6
Inspect for a poor connection at connector C201, or for an open in the pigtail to the wiper/washer switch. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
--
Go to Step 13
Go to Step 7
7
Replace the wiper/washer switch. Refer to Multifunction, Turn Signal, and Hazard Switch Replacement - On Vehicle .
Did you complete the replacement?
--
Go to Step 13
--
8
Disconnect the wiper motor connector.
Measure the voltage from the wiper motor connector, terminal D, to ground with a DMM.
Does the voltage measure greater than the specified value?
1.0 V
Go to Step 10
Go to Step 9
9
Repair the open in CKT 113. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 13
--
10
Measure the voltage from the wiper motor connector, terminal E, to ground with a DMM.
Does the voltage measure greater than the specified value?
1.0 V
Go to Step 12
Go to Step 11
11
Repair the open in CKT 112. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
--
Go to Step 13
--
12
Replace the wiper motor cover. Refer to Wiper Motor Cover Replacement .
Did you complete the replacement?
--
Go to Step 13
--
13
Operate the system in order to verify the repair.
Did you correct the condition?
--
System OK
Go to Wiper/Washer System Check
