Question about 2003 Isuzu Rodeo

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What colour is the postive wire going into the wiper motor that is alive on full key only

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Hi , it is green 

Posted on May 13, 2009

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Wipers only work on slow intermittant


front or rear, guess front... gee?
you meant fails only on high and fails means dead, rigth, not slow on high or some other odd effects. like noise. chattering or ?
what does it do on high , i guess sits still.
the wipers can be slow. if the motor is weak.
fail to return
make noises. or jam.
Q1:" do the washers work

2004 WJ
there are 3 things, POWER< CONTROLLER and MOTOR.
the first question here, is this computer controlled (eg BCM)
answer: YES, the BCM does keep alive. (more later)
is there a relay?
answer yes.
the control has 10 position.. off 1....9
so intermattant 1 to 5 work, you never said that.
at pos. 6 is low, works.
at post 7 high its dead. it turns on the HIGH wiper relay in the PDC
so that is dead,
my guess. i use meters to tell me facts but if i hand to guess
it be the HIGH relay blown.
if not its the H tap pin on the motor bad.
or wires to same.
the wiper motor can be hot wired to test it. easy
pin 6 on the motor connector is hIGH./

if how ever the high starts the wiper moving and then dies
then the PCM keep alive feed is dead. or wiper on./off is dead.
but the other work, so id skip this.

try to say exactly what happens on high. (DEAD?)
OR MOVES AND STALLS.? O short strokes.?

Jan 03, 2016 | 2004 Jeep Grand Cherokee

1 Answer

Rear wiper will not shut off


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.

Mar 03, 2014 | 1994 Jeep Grand Cherokee

1 Answer

Wipers will not turn off


the switch inside the motor casing is mangled.
fixed many ,too many.
if the combo switch is off, 0v, and it runs that means the motor switch is bad, fix it or get a new motor.
there are only 2 choices.

this switch inside is the keep alive switch, for wiper return
when it mangles, it keeps alive for ever.
if you think this i hard, try classic cars with vacuum wiper motors.
here is a very good drawing, of such a swith (not yours)
but shows how the cam works , clearly
i just rebuilt one last month. relic VW bug.

http://www.nls.net/mp/volks/schem/wiper2.gif

Jan 03, 2014 | Toyota Cars & Trucks

1 Answer

Hi - I have 1 2008 Acura MDX and suddenly the wipers came on and won't shut off. (Stuck in intermitten mode.) Also the HIGH speed option for the wipers also isn't working - it just stays on standard speed....


Front wipers.
they all guess, do you want me to guess, too? surely not.
or test?. we can use a voltmeter to find this.
what we do is look at the schematics at alldata.com
and its all clear. a simple road map;

Sticking on possibles.
the fuses are underhood. fuse 11 and 31
bad motor , internal keep alive cam switch stuck on,
will cause continuous wiper.s

so will motor colored wires green or blue hot full time
will keep motor going full time (any voltmeter, easy check)
12vdc is bad, 0v good (wipers off)
next and last is that wiper relay in hood fuse box, shorted. (pull it out see if they shut off?)
if the relay is good then its input is wrong. the control block.

the combo switch wipers on , sends a CAN buss digital commands to the MICU control block, this i turn powers up the wiper relay.
the MICU has a diagnostic port,and can be tested at the dealer
or errors.

if the relay coil pins are hot all the time, then the MICU /combo side is failing, if not, the problem is the relay ,if its output is hot all the time.
how is that?

Oct 22, 2013 | Acura MDX Cars & Trucks

1 Answer

2009 Ford Mustang GT/CS; Wiper's inop. Motor and switch are brand new. Circuit 2026 (constant 12v+) is good, circuit 2025 (ign 12v+) has no power. Fuses for both circuits are good, and I have 12v+ positive...


Could it go through a body control module some where? In most cases Key,to switch,then to motor. All the speed and park should be built in the motor/gear box.

Oct 17, 2013 | Ford Mustang Cars & Trucks

3 Answers

Windshield wipers stopped working not fuse is there a relay and where is it


with the key on and the wiper switch in the low or high position tap the wiper motor with a screwdriver handle. If it starts working replace the wiper motor.

Sep 26, 2010 | 2002 Buick Rendezvous

1 Answer

My front wipers do not work, the washer on the front and the rear wiper works fine, they are all on the same thing


HI. This is a possible motor issue. To confirm, use this procedure. it will help isolate the actual issue at hand.

1.Make sure the battery has a strong charge and is in good condition. Use a voltmeter to get a reading if necessary.

2.Connect a jumper wire between ground and the wiper motor. Turn the key on but don’t start the engine. Turn the wiper switch on. If the motor works, check for a corroded or loose ground connection.

3.Turn on the car key but don’t start the engine. Turn on the wipers. Check for voltage at the wiper motor with your voltmeter. If you get a good voltage reading, turn the key off and disconnect the motor from the wiper linkage.

4.Move the wiper arms by hand. If they are stuck, you have found the problem. If the wiper arms move freely by hand, go to step 5. If voltage is not reaching the motor go to step 6.

5.Remove the wiper motor by disconnecting the plug and removing the bolts using a wrench or ratchet. Use a pair of jumper wires to connect the wiper motor directly to the battery. If the motor does not work, replace it.

6.Turn on the key but don’t start the engine. Get a voltage reading across the wiper switch. If there is voltage, use a jumper wire to bypass the switch, if the motor works now, replace the switch, otherwise go to step 7. If there is no voltage at the switch, go to step 8.

7.Check for continuity at the wire between the switch and the motor. The wire could be loose or disconnected.


8.Check the wire coming from the fuse panel to the wiper switch. It could be disconnected or loose.

Nov 23, 2009 | 2004 Jeep Liberty

1 Answer

Driver windshield wiper does not work


HI. This is a possible motor issue. To confirm, use this procedure. it will help isolate the actual issue at hand.



Step 1

Make sure the battery has a strong charge and is in good condition. Use a voltmeter to get a reading if necessary.

Step 2

Connect a jumper wire between ground and the wiper motor. Turn the key on but don’t start the engine. Turn the wiper switch on. If the motor works, check for a corroded or loose ground connection.

Step 3

Turn on the car key but don’t start the engine. Turn on the wipers. Check for voltage at the wiper motor with your voltmeter. If you get a good voltage reading, turn the key off and disconnect the motor from the wiper linkage.

Step 4

Move the wiper arms by hand. If they are stuck, you have found the problem. If the wiper arms move freely by hand, go to step 5. If voltage is not reaching the motor go to step 6.

Step 5

Remove the wiper motor by disconnecting the plug and removing the bolts using a wrench or ratchet. Use a pair of jumper wires to connect the wiper motor directly to the battery. If the motor does not work, replace it.

Step 6

Turn on the key but don’t start the engine. Get a voltage reading across the wiper switch. If there is voltage, use a jumper wire to bypass the switch, if the motor works now, replace the switch, otherwise go to step 7. If there is no voltage at the switch, go to step 8.

Step 7

Check for continuity at the wire between the switch and the motor. The wire could be loose or disconnected.

Step 8

Check the wire coming from the fuse panel to the wiper switch. It could be disconnected or loose.

Oct 10, 2009 | 2002 Toyota Highlander

2 Answers

2004 wipers keep blowing fuses chevy caviler


Either the wiper motor or the wires going to it are shorting out. First unplug the wiper motor replace the fuse try the wipers again if the fuse blows again then check the wire loom for a bare wire Check the colour of the wires at the plug on the motor. The most likely place for the wires to short out are at the switch. It may be an easier job to rewire ther wipers as there is a lot of wires in the loom. If you need to know how to rewire it get back to me and I will guide you through it

Aug 10, 2009 | Chevrolet Cavalier Cars & Trucks

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