Question about 2000 GMC Safari

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No voltage on fuse blower fan front an rear wiper front an rear.

I have no voltage reading on the fuse for blower motor, no reading on fuse for wiper front an rear, no air conditioner and no heating. Everithing stop when I start my car by cold wether. Blower fuse and wiper fuse are good...but no voltage...I have haynes repair manuel whit electric diagram but can't find what give the power for those 2 fuses..thank you

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This aint much of a solution sorry it going to be a wire short you will have to trace each wire through the harness its a pain in the but good luck

Posted on May 16, 2009

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1 Answer

My rear blower motor works fine but my front blower motor only works when driving down the road on my 99 E350 and I don't know what fuse goes to the blower motor


In the diagram, blower motor, top wire is voltage, bottom wire is ground. With everything on, check the wiring connector for blower motor, use a test light and check voltage and ground. As you can see, the blower resister and front blower switch are on the ground circuit for blower motor.
There are fuses involved. I didn't look at rear blower motor.
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May 03, 2018 | Ford E350 Cars & Trucks

1 Answer

The ventilation fan for heat/ac is not working. The fuses all seem the be ok. Any thing else to look for


Did you check the proper fuses for voltage? Some fuses are hot all the time, some go hot with the key on. Even if fuses are good, if no voltage the circuit is still dead. I guess your talking about the blower motor? Can you hear it running? I don't know if you auto hvac or manual hvac? I don't know if your talking about front or rear blower motor?
Get at the blower motor, if two wire connector, that should be voltage and ground. Turn on the hvac controls, check for voltage and ground at the blower motor connector. If good voltage and ground with no blower action, suspect the blower motor.

It is possible to use jumper wires from the battery for voltage and ground to blower motor connector, just for testing to see if blower motor will run, use an inline fuse, just in case.
If you want wiring diagram, I need more info.

Oct 02, 2016 | 2007 Honda Odyssey

1 Answer

What fused number uses for fan blower


heater fan fuse. in dash blower. front not the rear OPTON
hard book to read, BMW, (lost in translation from German?)
A32m1 Blower motor
the right relay fuse box.
the Germans use codes instead of words for parts.
making the drawings very hard to read.

get the operators guide for car (lost it huh>?
see see chapter, FUSES
BINGO.


Jun 25, 2014 | 2001 Mercedes-Benz S-Class

1 Answer

Front Blower does not work on 2008 town and country.


At the moment, I think something wrong with "totally integrated power module", some people call this the bcm. There is no relay or fuse for front blower motor, there is a relay for rear blower. The dark blue wire is voltage from bcm or if you wish totally integrated power module. You could check the wire circuit/dark blue wire. With hvac turned on, check for voltage at the blower module and bcm, you could also check continuity, no voltage on the system.
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May 03, 2017 | Cars & Trucks

1 Answer

Heater fan on 2002 Yukon does not operate in front, only rear.


The front blower motor is controlled by the blower resistor module.This is usually the problem with the front blower not working.I looked up the schecmatics and I don`t see separate fuses for the front and rear.But the fuse for the front blower is in the under hood fuse block.If this is good then The problem is probably the resistor module.It is next to the blower motor.The connector from the resistor connects to the blower motor.If you want to confirm this you can check for power and ground at the blower motor connector when you activating the blower switch on.This can be done with a test light.Make sure you have power going into the resistor module also.If you have power going in and no power at the blower motor then replace the resistor.Hope this helps.Good luck.

Dec 28, 2009 | 2002 GMC Sierra C/K1500

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

Where is the front fan resistor unit?


Look under the van,on the drivers side near the radiator,it should be in that area.Follow the wires from the fans,they should go right to the module.This is for the cooling fans for the radiator.For the resister module for the blower motor look near the blower motor in the blower box.It is near the blower fan.It can be under hood,but it will be mounted with two screws.Remove the two screws,but you need to remove the wire plug in first.Pull it out .It goes inside of the blower box.If you replace this module,replace the blower motor also,because the blower motor is what causes the resistor to burn out.Did you check voltage at fuse with key on?If you did not check the fuse with key on,you got a false reading.If you checked the fuse with key on,look for a bad ignition switch,or a fusible link burned into coming off a pos. terminal post where the battery cable goes to under the battery.If the blower will not work at all even on high blower,the resister most likely not the resistor.The blower motor relay is most likely the problem.

Aug 29, 2009 | 2005 Dodge Caravan

1 Answer

99 Nissan Quest real wiper runs continually when ignition is on


Principles of Operation
Operation of the windshield wiper and washer is controlled by the front wiper/washer amplifier assembly. The front wiper/washer amplifier input comes from the multifunction switch by means of a voltage divider circuit. A constant voltage is applied to the multifunction switch by the front wiper/washer amplifier. When the multifunction switch is moved into the LO, HI, or intermittent position, the voltage is directed through a series of resistors. This results in various voltages being returned to the module for each switch position. The module then grounds the appropriate circuit, based on the voltage signal received back from the multifunction switch. This causes the wipers to run intermittently, or at the appropriate speed. Voltage is supplied to the wiper motor by the CJB fuse F46 (20A).
When the multifunction switch wash button is depressed, it bypasses all of the resistors returning a full voltage signal to the module. The module then grounds the appropriate circuits to operate the windshield washer pump for as long as the switch is depressed. The windshield wiper speed is dependent on the position of the windshield wiper/washer switch.
Voltage for the windshield washer pump is also provided by CJB fuse F46 (20A).
Operation of the rear wiper and washer is controlled by the rear wiper/washer switch.
Voltage is supplied to the rear window wiper motor by the fuse junction panel fuse F44 (10A).
The rear window wiper motor ground is made or broken by the rear wiper/washer switch. When the rear wiper/washer switch is moved into the WIPER position, it grounds the rear window wiper motor circuit, causing the rear window wiper motor to run once every 10-15 seconds.
Voltage to the rear washer pump motor is also supplied by the CJB fuse F44 (10A). The rear washer pump is directly controlled by the rear wiper/washer switch which makes or breaks the ground for the washer pump motor, depending upon its position.
If the vehicle is equipped with a movable liftgate glass, a liftgate glass switch is utilized to prevent rear window wiper operation when the liftgate glass is open. This same switch also causes the rear window wiper to drop down approximately three inches when the liftgate glass latch is released.
------------------------------------------------------------------------------------------
  • The wipers stay on continuously — rear wiper
  • Circuit.
  • Rear wiper/washer switch.
  • GO to Pinpoint Test L .


---------------------------------------------------------------------------------------------
Measure the resistance between rear wiper/washer switch C288 pin 6, component side and rear wiper/washer switch C288 pin 2, component side.
  • Is the resistance less than 5 ohms with the switch depressed, and greater than 10,000 ohms with it released?
sxv~us~en~file=arrow.gif~gen~ref.gifYes GO to L2 .
sxv~us~en~file=arrow.gif~gen~ref.gifNo INSTALL a new rear wiper/washer switch. TEST the system for normal operation.

Measure the resistance between rear wiper/washer switch C288 pin 6, circuit WB08 (BU/YE), harness side and ground.
  • Is the resistance greater than 10,000 ohms?
sxv~us~en~file=arrow.gif~gen~ref.gifYes INSTALL a new rear wiper /washer switch. TEST the system for normal operation.
sxv~us~en~file=arrow.gif~gen~ref.gifNo REPAIR circuit WB08 (BU/YE). TEST the system for normal operation.

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Dec 08, 2008 | 1999 Nissan Quest

1 Answer

1989 Mercury Tracer Sta. Wgn.


your owner manaul has it. your fuse cover should have chart too.

here is 96 tracer. You also have main fuses under hood.

INTERIOR FUSE JUNCTION PANEL REFERENCE CHART Fuse Fuse Rating Color Protected Components (REAR WIPER) 10A Red Rear wiper and washer motors, heater and A/C relays, daytime running lamps control (Canada), climate control assembly panel illumination HAZARD 15A Blue Front and rear turn signal lamps, turn signal indicator lamp, indicator flasher ROOM 10A (1.9L)
15A (1.8L) Red
Blue Dome and map lamps, safety belt warning chime, ignition key illumination, luggage compartment lamp, vanity mirror lamp, radio chassis (memory), power door lock relay, shift interlock system, powertrain control module (PCM), radio amplifier (memory) ENGINE 15A Blue Fan control (FC) relays, PCM relay RADIO 15A Blue Radio chassis, radio amplifier, remote control mirror, instrument panel illumination (DOOR LOCK) 30A Light Green Power door lock actuators BELT 30A Light Green Passive restraint control module, passive restraint motors (POWER WINDOW) 30A Light Green Window regulator electric drives METER 15A Blue Instrument cluster, backup lamps, rear lamps, speed control system, shift interlock system, safety belt warning chime, passive restraint control module, hazard flasher, PCM (1.8L Canada) WIPER 20A Yellow Windshield wiper motor and windshield washer pump STOP 20A Yellow Stoplamp, horn (1.9L only), rear hi-mount lamp TAIL 15A Blue Parking lamps, cornering lamps, rear lamps, license lamps, compartment lamp, instrument panel illumination (SUN ROOF) 15A Blue Sliding roof panel motor ABS 10A Red Anti-lock brake system (ABS) (1.8L only) (DEFOG) 20A Yellow Rear window defroster HEATER 30A
circuit breaker — A/C blower motor HO2S
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 10A (1.9L)
20A (1.8L) Red
Yellow Heated oxygen sensor (HO2S) CIGAR
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 20A Yellow Cigar lighter knob and element CIGAR 20A Yellow Cigar lighter OBD II 10A Red Data link connector #2 BLOWER 30A Light Green Blower motor relay HORN 20A Yellow Horn (1.8L only)

Aug 10, 2008 | 1989 Mercury Tracer

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