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2006 chevy 2500 washer pump will not shut off

Changed multi function switch and pump motor still have the same problem

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Please post this to the Auto section where you can find solutions.

Posted on Jan 22, 2013


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Wiper issues only work on high but work very slow

with engine running and not.?
front or rear wiper,?????
toss dice, land on front......( 50/50 odds)
it's a network now, no more old style, point to point one wire for every thing on car and a ton of copper to match.
first test all fuses, then scan it.
or it will get expensive fast guessing.
the Switch bank brain under the wiper stalk
sends what you did, on to the LIN bus network,
The switch there does not actually drive lamps.
its just a digital switch, (some are 3 level logic)
The switches on some use a bank of internal resistors to tell the switch bank what you did.

this LIN data stream, is sent to the cluster brain
and also to the TIPM brain.(Allen Turing brains)
the cluster responds for many actions, taken and shows you what you did (EG) for blinkers, flashes the cluster TURN lamp. in same.
Wipers front.
the command for wipers are sent to the TIPM
this device, runs (DRIVES) a huge number of things on the car. (ask for schematics, I have it in pdf forum now,)
Totally Integrated power module. or TIPM
It drives the wiper motor using internal high powered electronics. Direct drive,..
It also senses the wipers location called the sense wire.
The TIPM brain, has complex logic to do all that
it gets many commands to do, (fast ,slow, intermittent wipe) and via TIPM computer memory instructions,
does the job.with pure software. inside.
the wipers can fail for many reasons besides simple mechanical jam or a cut wire.
1: fuse blown to any of those module. check them all if you are SAVVY!
2: TIPM bad,
3: TIPM power supply pin too low, say car battery is 10v ( are head lamps dim,, hummmmmmmmmm)
4: TIPM programming bad. (scrambled brain, needs re-flash)
5: CAN bus or LIN bus, noise, or gross collisions of data on that vital bus. (only scans work here)

IF all fuses are good we scan it .
as always , we check battery voltage first.
with out fail, and listening to the starter motor.
if the starter is dead or weak , we want a strong battery to make all this complex electronics in the car work.
A $10 voltmeter and you know know, battery is above 12.6vdc rested, key on, engine off.
start engine and it goes above, 13.3vdc.
That same tool i can test all fuse. ask.
end comments.

FSM page:
the first page states (QUOTE)
The most reliable, efficient, and accurate means to diagnose the front wiper motor or the electronic controls and communication related to front wiper motor operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
NOTE The front wiper and washer switches are integral to the right multi-function switch. The right multi-function switch is hard wired to the left multi-function switch/Steering Control Module (SCM), which communicates with the ElectroMechanical Instrument Cluster (EMIC)/Cab Compartment Node (CCN) over the Local Interface Network (LIN) data bus.
Before performing any of the following tests, determine whether the other functions of the right and left multi-function switch/SCM are operational. If only the right multi-function switch functions are inoperative, test and repair the right multi-function switch or the jumper harness between the right and left multi-function switches before attempting to repair the Front Wiper and Washer System. If both the right and left multi-function switch/SCM functions are ineffective, diagnose and repair that problem before attempting to repair the Front Wiper and Washer System. end quotes.

what's MORE?
what is missing is a block diagram, here ill make one so we can all learn....

Binary switch stalk. via 7 pin connector.
SCM module (steering control module)
to: (i guess the SCM is the Bank switch brain)
the LIN>CAN network, (the SCM sends digital commands to)

if you scan it and see errors from SCM to TIPM
that needs to be corrected first.
garbled bus data will make the TIPM go nuts.

That ground bad theory fails. because...
the motor uses Ground G112
if that wire fails you get vast numbers of failure from 10 majors. including oxygen sensor 1/2
so it;'s not G112 bad.
the motor has fast winding and low speed.
and a common ground. and a sense wire.

never skip scanning the car, or its all like a dog chasing his tail.
Battery not discharged, (you never said car runs)
fuses all good, (means tested)
scanned and not DTC errors. (i bet yes errors)
there 7 pages for the whole can/lin bus.

but this one is switch banks.
one tricky aspect of this, is the cluster
I think translates this wiper data commands from the LIN bus and then rebroadcasts to to the CAN-BUS. that he TIPM uses.that means.
so error are both buses are important.
this is the LIN-bus, the cluster retransmites the commands do the CAN-BUS. so if cluster is dead
that kills those commands,... out.bound. see?
tricky, i told you.


Apr 14, 2016 | 2007 Jeep Compass 2.4

1 Answer

Which fuse controls front windshield wiper pump

Do the wipers work ? Fuse for wipers is same as washer pump .
Principles of Operation
The wiper motors receive inputs from the following:
  • Multi-function switch
  • Powertrain control module (PCM)
  • Ignition switch
  • Smart junction box (SJB)
The following components are integrated in the wiper motors:
  • Windshield wiper motor module
  • High/low speed relay
  • Run/park relay
  • Washer pump relay
  • Park sense (Hall-effect sensor)
Washer System
The windshield washer and the rear window washer are activated by the internal wiper motor modules when it receives a ground from the multi-function switch between the washer inputs. Depending on the correct ground, the internal wiper motor modules activate either the windshield washer or rear window washer relays (internal) by grounding the respective relay coil. When either module is activated, it connects voltage to the washer pump while the deactivated module provides ground to the washer pump. In this manner, voltage polarity is reversible to achieve directional change of the washer pump and washer fluid.
  • The washer pump is inoperative
  • Circuitry
  • Washer pump
  • Multi-function switch
  • Windshield wiper motor
  • Rear window wiper motor
  • Go To Pinpoint Test I .
Does your expedition have programmable/recall memory option for seats an mirrors ?
Driver Seat Module
The power driver seat and power exterior mirrors are controlled by the driver seat module (DSM) only when the vehicle is equipped with the programmable/recall memory option.
On the Expedition Limited, the power fold exterior mirror option is controlled by the DSM. Before running a self-test or retrieving codes, the power fold switch must be inactive for at least 30 seconds.
This is a complex vehicle , electronics , control modules an serial data communication networks. You mite be better off taking it to the dealer or some other repair shop . There could be DTC'S - diagnostic trouble codes stored in the SJB - body control module !
B1667 Mirror Driver Up/Down Motor Stalled Go To Pinpoint Test D . B1668 Mirror Driver Right/Left Motor Stalled Go To Pinpoint Test D . B1669 Mirror Passenger Up/Down Motor Stalled Go To Pinpoint Test D . B1670 Mirror Passenger Right/Left Motor Stalled Go To Pinpoint Test D . B1735 Mirror Driver Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1739 Mirror Driver Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B1743 Mirror Passenger Vertical Switch Circuit Short to Battery Go To Pinpoint Test D . B1747 Mirror Passenger Horizontal Switch Circuit Short to Battery Go To Pinpoint Test D . B2312 Mirror Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2314 Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2316 Mirror Passenger Vertical Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2318 Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . B2320 Mirror Driver Horizontal Feedback Potentiometer Circuit Failure Go To Pinpoint Test D . B2322 Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery Go To Pinpoint Test D . Normal Operation During normal operation, when the front wiper wash is selected, the windshield wiper motor provides power to the washer pump through circuit CRW14 (BU/WH) and ground is provided to the washer pump through circuit CRW12 (GY/OG) and the rear wiper motor. If rear wiper wash is selected, the rear wiper motor provides power to the washer pump through circuit CRW12 (GY/OG) and ground is provided to the washer pump through circuit CRW14 (BU/WH) and the windshield wiper motor.
    Possible Causes
  • Multi-function switch
  • Open in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN), CRW20 (GY/YE), SBB49 (RD) or GD149 (BK/GY)
  • Short to ground in circuit CRW14 (BU/WH), CRW12 (GY/OG), CRW07 (GY/BN) or CRW20 (GY/YE)
  • Washer pump
  • Windshield wiper motor
  • Rear wiper motor
    This is

Feb 02, 2016 | 2010 Ford Expedition

1 Answer

Wipers stay on

I believe its your wiper motor not your switch.

Jul 09, 2014 | 2006 Chevrolet Trailblazer

1 Answer

What fuse for wiper washer motor

The wiring diagrams in the Haynes book should show the washer pump circuit? Often the washer pump shares the same fuse as the wipers.
You could pull off the electrical connector for the washer switch, or the multi-function switch if so equipped, and check for voltage on the pump wire going to the switch, key on. Then check if power going out of switch to the pump-key on and pump switch on. If power on both, the wire from switch to pump must be broken. Run a new wire. If power into switch but none out-switch is bad. If no power into switch for the pump, may have to keep looking for a bad fuse or the wire from fuse panel to the washer switch may have a problem. Hope this helps, good luck.

Feb 08, 2013 | Cars & Trucks

1 Answer

Installed new wiper motor, delay board, and checked fuses on 98 monte carlo and wipers still dont work. Washer pump no working either unless i jump power to it. I checked wiring to motor and pump. Seems ok

Most likely, you can check the multi-function switch on the steering column, They generally will go out after several years of use. To replace this, you must first remove all steering column covers. Refer to A Haynes Manual if you are unsure of how to proceed with this. After that, you must remove the multi-function switch from the column, it should be secured by one or two bolts, or on some models simply a retaining clip(plastic) that mounts it to the steering column. Replace with an direct OEM replacement, or its equivalent(available at Autozone) and this should take care of the problem. After replacing the relays, fuses, and the motor, the only thing that it can be is the multi-function switch(other than faulty wiring, in which you will need an Ohm meter to detect). Any other questions feel free to ask.

Jul 01, 2011 | Chevrolet Monte Carlo Cars & Trucks

1 Answer

2007 chevy trailblazer. front wipers and washer pump wont shut off. have to remove fuse.

Must be in the multi-function switch that controls the washers and wipers. These are 2 different circuits that the only thing in common is the switch. This will take some special tools to replace. Might want to take it somewhere for this operation.
Good Luck and God Bless!

Jun 06, 2011 | 2007 Chevrolet TrailBlazer SS

2 Answers

1988 chevy 2500 5.7 no por to fuel pump fuse

is there an anti theft system installed ??
if yes it is ingauged

Jan 03, 2010 | 1988 Chevrolet K1500

1 Answer

Wipers won't shut off

I had the same problem. The problem is in the switch (wiper, turn signal, hi-beam, hazard switch - multi-function switch). The part number is S14349 from BWD. My wipers wouldn't turn off and sometimes headlights wouldn't turn on unless I held the hi-beam switch back for about 5 seconds. After I changed the multi-function switch, the wipers still came on twice, but have been fine since (about a month). I don't know if it helped, but after I changed the switch, I pulled the top cover off the wiper motor housing (under hood against firewall right in front of driver - you have to remove hood weather stripping on top of firewall), checked the electrical connection to motor and also pulled up on ground strap checking the make sure I had good contact with the grounding strap. After I checked all that, the wipers came on once by themselves but I could actually turn them off and they have been fine since (don't know if there was some type of memory that caused the wipers to come on after I changed the switch, but they have been fine since then). Hope this is helpful.

Nov 15, 2008 | 2004 Mercury Grand Marquis

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