Rear wiper will not turn off even when using control switch

Sounds like you might have a bad multifunction switch. You can test the outputs of the switch to confirm.

Rear Wiper/Washer System Components
The rear wiper/washer system consists of the following components:
• Rear wiper/washer switch
• Window wiper module-rear
• Window washer pump-rear
• RR WIPER 15A fuse
• RR WPRB 25A fuse
Rear Wiper/Washer System Operation
The rear wiper module controls rear wiper motor operation. Battery voltage supplied to the module is used to operate the wiper motor in all modes and to return the rear wiper arm to the park position after the ignition is turned off. Accessory voltage supplied to the rear wiper/washer switch is used to supply the rear window wiper and washer switch signal circuits. In wiper switch positions 1 and 2 the wiper switch signal circuit voltage level to the wiper motor module determines the wiper motor delay interval. The rear window washer pump supply voltage circuit is used to provide the operating voltage for the rear washer pump for as long as the rear washer switch is pressed. The rear window washer switch signal circuit is used as a wash signal to the rear wiper motor module to operate the wipers during the rear wash operation.


Did you replace the rear wiper module ?

In the under hood fuse box , should have diagram inside the lid . Front wiper's or rear ? Front fuse # 36 - 25 amp. Plus Two relay's PCB hi and Wiper PCB relay . Wouldn't think this being fuse problem . Wiper switch , motor etc... The wiper's are control by a computer . BCM - body control module .

The windshield wiper/washer system consists of front and rear wipers. The front and rear wipers are operative when the vehicle is in accessory or run. The front wipers have 4 different modes: Mist, Intermittent, Low, and High. When the front wipers are in the intermittent mode, there are 5 delay modes to chose from, commanded by the windshield wiper washer switch through the body control module (BCM). The rear wipers has an only one mode.

If the fuse is bad , could have a short to ground or wiper motor pulling to much current (amps) . Fuse's don't just blow for no reason ! Could also have DTC'S - diagnostic trouble codes stored in the BCM .
DTC B3715
DTC B3873
DTC B3875
DTC B3922

DTC B3715 02: Front Wiper Relay Drive Circuit Short to Ground
The body control module (BCM) controls the wiper motor based on input from the windshield wiper washer switch. The BCM monitors the wiper washer switch through three separate signal circuits and a ground circuit. The windshield wiper switch high signal circuit is used to determine high speed wiper operation, the windshield wiper switch low signal is used to determine low speed, intermittent, and mist operation through the use of a resistor ladder, and windshield washer switch signal circuit is used to determine washer operation.
The BCM controls the windshield wiper motor through two output controls, controlling two different PCB relays which control the desired wiper speed, high or low.
DTC B3922 00: Front Wiper Function Select Circuit

The PCB relay's are non- servicable , replace fuse box . Soldered in Your best bet mit be to take it to a qualified repair shop .

Wipers won't turn off......sometimes! - Ford Truck Enthusiasts Forums

www.ford-trucks.com > ... > Diesel > 6.7L Power Stroke Diesel
Feb 3, 2014 - Starting around 25,000 miles my wipers stayed on the slowest intermittent setting even when ... They only two that come to mind is the switch inside the cab or the wiper motor control board. ... The wipers do not park at the correctposition ... It doesn't really matter what steps need to be taken to fix the issue.

Window washer fluid put in window washer won't work now.

www.cargurus.com > Questions > Kia > Sorento

CarGurusAug 31, 2015 - Window washer fluid put in window washer won't work now. ... 4 answers. wipers working, not the washer though, pulled pump, intake screen clean. 2011 Kia Sorento Base ... Interior lights do not work when door is opened 7 answers. At first the back seat overhead light stopped working. Kia said it would ...

the motor in all wipers motors boxes.
has a switch inside, called the keep alive or auto cancel;.
its bad.
ive fixed many a switch inside, most shops throw the whole thing way.
for good reason, they dont want you back next week for same problem.
on old cars we try to fix things. direct.

to prove this. we use a voltmeter
at the 2 power pins, one goes to 0volts when you turn it off
the other stays hot. 12v. this is normal
if the motor fails to stop, the motor internal switch is bad.

the tests are here.
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

under wipers chapter and wiring 8w-53-4
as you can see the rear motor has 3 wires.
pin 2 is ground
pin1 is keep alive pin, 12v.
pin 3 is demand, 12v wiper on, 0v wiper off.

if you cut the pin 3 wire, and the motor keeps going, the motor internal switch is bad.
if cutting pin 3 , kills the motor ,that means the hand switch is bad.
or shorted some way.

Wow, the wiper still goes with the battery disconnected, that's amazing! Just joking ;-) Seriously, it sounds like it could be a short in the switch to control the wiper or a wire has shorted causing the wiper to stay on. Probably, if you replace the switch, the problem will be solved. If you know someone with the same type of car, you could "borrow" their switch and connect it to your car to see it that is the problem. I hope this helps.

2004 Kia Sorento The Wiper Relay is Part Of The IPM Module .

Its The Kia Body Control Module Should Be Located Left Driver Kick Panel Behind"..
http://www.ksmanual.com/ipm_removal-1120.html

The problem is a broken part in the module which is inside the wiper motor. As far as I know, the part is not available, and you must replace the entire wiper motor to repair the problem

Back window wiper switches/levers are tricky, especially on German-brand automobiles.
Just make sure that the lever/switch is on 'O' or OFF. I overlooked this once on an Opel Astra, and mistook it for the signal lever. Move the switch to all positions to ensure that there is no damage to the physical contacts or electronic controllers of the wiper.
If the wiper cycles even in off position, the controller or motor will need to be replaced.

Google for Reburbished PCM and call the Florida company -- you can get a new PCM "Brain" pretty low cost and I bet will solve your problem.