Question about 2000 Oldsmobile Alero

1 Answer

HEATER BLOWER NOT WORKING

Is it relay or motor

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  • smoo43 Jan 31, 2009

    Check both blower moter and relay neather one solved the promblem

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1 Answer

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  • 326 Answers

The blower may simply have burned out. If the blower is out then the heater probably still works.

Posted on Jan 30, 2009

6 Suggested Answers

  • 2 Answers

SOURCE: heater blower motor not working, fuses all good

replace blower motor resistor module.very common problem.I've replaced hundreds in my 25yrs working with G.M.

Posted on Feb 28, 2010

Testimonial: "thanks, where is the blower motor resistor module located?"

  • 3 Answers

SOURCE: The heater / ac blower

It is the blower resister. I purchasted one at auto zone for $18.00. It is located under the passenger side dash. You need to remove the glove box and the plastic cover under the dash to expose the blower motor. the blower motor resister is right next to the motor. Simply unplug the resister remove the two screws and replace. I did this and now my fan works on all speeds.

Posted on Sep 17, 2008

samson-1
  • 153 Answers

SOURCE: a/c and heater blower not working anymore....already replaced motor

The blower motor resistor is likely the problem.

Posted on Nov 10, 2008

  • 261 Answers

SOURCE: Heater Fan/Blower does not work.

what you need is a blower motor resistot

Posted on Dec 04, 2008

  • 715 Answers

SOURCE: Heater Blower motor doesn't work on speeds 1 and 2

fan control switch

Posted on Oct 11, 2009

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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1 Answer

Where is the Blower motor relay on a 2002 Ford Econoline E150, and how do you change it so both the front and rear blower motors work on all 3 speeds?


There would be two relay's , one for front an one for the back . And the relay would be for high speed only . And it just so happens there are two AUX blower motor relay's .
Auxiliary Blower Motor Relay C403
Left rear corner of vehicle, above wheelwell
Auxiliary High Blower Motor Relay C404
Left rear corner of vehicle, above wheelwell

Front blower motor relay - K73 top left , Six relay's at top left .


check it out here http://www.bbbind.com/free_tsb.html

Feb 17, 2017 | Ford Econoline Cars & Trucks

1 Answer

Headlights won't open on 1985 Corvette


There are two motors, and three relays in the system. Here's how it works:

The headlight door motors reverse direction by reversing polarity. However, the automatic shut off (high torque switch, or HTS) makes that a rather more complex task than at first it might seem.

That's because when a motor reaches its limit, one of the 'wires' is disconnected from the motor by the HTS. Reversing the polarity at this point wouldn't do anything since the circuit is broken by the HTS.

Consequently, each motor has three wires for control. The combination of the blue wire, gray wire, and green wire provide polarity reversal to the motor (to make it able to run in both directions) and to run each motor from its resting state, after it has shut off.

There are of course two motors. They operate and are controlled identically.

Here's the matrix:

RIGHT HAND MOTOR

Blu Grn Gry
up: (+) (-)
dn: (+) (-)

That is, in order to run the motor up, the system connects the green wire to the hot side and the gray wire to ground. In order to run the motor down, the system connects the blue wire to the hot side, and the green wire to ground.

The left hand motor operates the same, except for its blue wire is actually blue with white stripes.

There is an actuator relay for each light mounted on the body of the light housing. There is also an isolator relay, mounted on the fender wall on the driver's side. When operating properly, the two actuator relays act identically.

The actuator relays get their instructions from the isolation relay. When the motors need to run down, the isolation relay is not energized, the blue (and blue/white) wires make with the hot side through the closed contacts of the isolation relay (which is not energized), and the ground is furnished to the motor through the closed contacts of the actuator relay until the circuit is broken by the HTS. When operating properly, neither the motors nor the relays draw any current in the full down position.

When it's time to go up, the actuator relays are energized when the pink wires coming from the isolation relay are connected to the hot side through the newly closed contacts of the isolation relay, the isolation relay is energized because the yellow wire coming from the head light switch is now hot.

When the actuator relays are energized, they furnish 12v from the always hot red wires, through their newly closed contacts, to the green wire. The motor is grounded through the newly closed contacts of the actuator relays. The motors will run up until the circuit is broken by the HTS. When operating properly, with the light doors in the full up position, all relays are energized and draw current, but the motors do not.

There are very counterintuitive things about this circuitry: When the motors are running UP, both the hot side and the ground are furnished by and through the actuator relay. However, when the motors are running DOWN, only the ground is furnished by the actuator relay because the blue and blue/white wires do not run to or through the actuator relay.

Similarly counterintuitive, when the motors are running down, the hot side is supplied by and through the isolation relay, but when they are running up, the hot side is supplied not by and through the isolation relay, but through the always hot fusible link.

That's how the headlamp door relays and motors work. The relays are not cheap but not terribly expensive, either: $17 ea for the actuator relays and $25 for the isolation relay. Proper trouble shooting can save a buck or two.

It is fairly easy to swap the actuator relays from side to side. If the symptoms change with them, then its probably the relays.

Although the actuator relays look similar to the isolation relay, they are very different, they cannot be swapped. Please note that the system is very interdependent, and it's easy to see why Chevrolet changed to electronic (as opposed to electro-mechanical) controls.
Hope this helps.

Apr 13, 2014 | 1985 Chevrolet Corvette

1 Answer

Front blower motor will not blow out heat or nothing, if i replaced the relay in the fuse box in side suv could that work. relay for blower motor, also not sure which one is the relay in the fuse box.


This may be a faulty Blower motor resistor, usually mounted inside the blower motor air box, or defective blower motor. There is no single Relay for the blower motor.

Dec 11, 2010 | 2004 Mitsubishi Endeavor

1 Answer

I am trying to figure out which relay is for the front blower motor. anyone know?


Hi!!
Look ion the INSTRUMENT PANEL Fuse Box, there are two blower motor relays and two fuses, look on the inside of the relay cover for a diagram. The relay you are looking for should be labeled FRONT BLOWER MOTOR RELAY and the rear one should say AUXILIARY BLOWER MOTOR RELAY.
The TWO fuses with the same name on passenger compartment fuse box check:
  • fuse #39 30A fuse. AUXILIARY BLOWER MOTOR
  • fuse #36 30A fuse. AUXILIARY BLOWER RELAY

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Dec 09, 2010 | 1996 Ford Windstar

1 Answer

My Heater is not working in my 2003 Honda Element


First check and confirm the fuses related to heater in your car.Fuse #12 (40A) in the under-hood box powers the blower motor. Fuse #14 (10A) in the under-dash box powers the blower motor relay as well as the A/C compressor clutch relay, A/C condenser fan relay, power mirrors, radiator fan relay, recirc. control motor, and rear defogger relay.If the fuses are blown then replace the fuse and check.But if the problem is still there then Its a heater relay problem,.The blower motor relay is in the under-hood fuse box. It's larger than the rest, on the back side, labeled RY6.Remove the relay. With the ignition off, use a 12V tester to locate the constant-power socket, which powers the motor via the relay. Then with the ignition on, locate the switched-power socket, which powers the relay. Verify that neither of the remaining two sockets is powered, then with the ignition off use a continuity light to determine which is ground. The last socket goes to the motor. (If the continuity tester lights on both, it's probably because the motor has fairly high resistance, and you'll need an ohmmeter to determine which socket is ground and which goes to the motor.)With a fused 12V power source, power the relay's coil contacts and check the other two contacts for continuity. If the relay doesn't work, replace. But if the relay is also checked ok.then in that case the blower motor is faulty causing this problem.Make sure it has power at the connector and that the connector is properly seated. If the power and ground connections are fine, then the motor is bad. ----------- This troubleshooting procedure will help you to confirm the possible problem.Thanks.Helpmech.

Nov 12, 2010 | 2003 Honda Element

1 Answer

Nissan altima 2000 with engine service light on. fault codes per mechanic p0325 and p1126. But he said mass air flow sensor malfunction. is this right?


p0325 is, ignition system or misfire, could be plugs, wires, or a bad coil. p1126 throttle control motor relay curcuit open.P1126 Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. possible cause, Harness or connectors (Throttle control motor relay circuit is open Throttle control motor relay.

May 07, 2010 | 2000 Nissan Altima

1 Answer

Wiper blades not working on 1999 Neon, and it is not the fuse


If you hear the wiper motor running, the linkage has come loose. Remove cowling under windshield to repair.

If no motor running, it's either the relay or the motor itself which is malfunctioning.

Find relay, check for 12 volts from hot wire to ground on wiper motor wires connected to relay.

If no voltage, relay is faulty.

If voltage on relay, wiper motor is faulty.

More info, let me know.

Charlie

Aug 31, 2009 | Dodge Neon Cars & Trucks

1 Answer

Blower working on top 2 settings but no air comeing from vents


Hi

Thanks for using FixYa. The possible causes due to which the blower is not working normally are fuse, blower resistor or a bad blower motor. Test the voltage at the blower with a test light. Please check the motor relay switch fuse under the dashboard. Use a multi meter to measure ohms for continuity. If these are fine, bypass the blower motor relay switch to make sure blower motor is running fine. Motor relay switch is right next to radiator fan relay switch under the hood. Pull out the blower motor relay switch to see 4 female pin holes. Test the relay switch using a 12 volts power source and a multi meter to measure continuity. If fan works after jumping the pin holes, then blower motor is fine but relay switch may be faulty. You may also need to replace the blower motor resistor. If still the problem persists, then you need to replace the blower motor.

Please do rate the solution and revert for further assistance.


Thanks
Rylee

Aug 09, 2009 | 1997 Honda Civic

3 Answers

Location of blower motor and relay(GM guy)


Behind the vacuum heater controls in the dash, they lead to a relay mounted there. That was the relay that was bad on my Dodge. It was a digital readout one.

Jun 30, 2009 | 1991 Chrysler New Yorker

1 Answer

Blower motor relay 1995 Ford econoline


Relays Blower Motor Relay(s)
The blower motor relay is located in the relay panel on the left front fender apron (16054). When the blower motor circuit is energized, the contact within the relay closes to complete the circuit for blower motor operation.

Mar 21, 2009 | 1993 Ford Econoline

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