Question about 2005 Pontiac Bonneville

4 Answers

2005 Pontiac Bonneville hvac blower does not come on

Hvac blower won't turn on, i checked blower fan, changed fuses and resistor, no success in getting it turn on

Posted by on

  • nelmond Oct 15, 2009

    When I first checked the blower motor by jumping 12 V to it it ran fine - no noise - no hesitation - no problem. It would not run wiht the controls when I rehooked it up so I changed the resistor unit. It still would not run and prior to purchasing the control module I removed the blower motor one more time and jumped it.
    This time it did not run until I spun it a little bit. I disassembled the motor enough to blast the comutator segments with compressed air to remove the worn brush material from shorting between segments and the motor and system has ran fine since.
    Basically the motor had shorted armature segments from worn carbon brush material.
    Thanks for the help - I thought I would pass this along for others.

×

Ad

4 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 520 Answers

Start by checking the blower resistor. It should be under the dash on the passenger side near the blower itself. You will need to remove the glove box to access it. It is a small plate that has only a few screws and a group of wires that go to a plug in the center. Unplug it and remove the screws. When you pull it out it should look like a series of small spring shaped coils. Most likely one or two of them will be burned up. Replace it in reverse order and your blower should start working again. If this is not the problem then test the fan motor itself. Hope this helps. Good luck.

Posted on Jul 26, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Pontiac Master
  • 373 Answers

The blower on my 2005 Bonny GXP quit at about 60,000 miles (I really like using High). The blower is under the passenger dash. Mine had a three wire connector. The center wire should have 12 volts. It doesn't take very long to pull the fan out. Mine was toasted. Aftermarket fan was about $130.
See this website for my instructions:
http://www.bonnevilleforum.com/t277509/

Posted on Oct 09, 2009

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 298 Answers

Check with a volt meter if your getting 12 V to the blower and if your not fallow to the switch if the switch is receiving 12 V and distributing 12 V you may have an open wire if your getting 12 V to the blower check if you have a good ground if you have both then you have a bad blower I hope this information is of use good luck

Posted on Jul 26, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 70 Answers

How did you check the blower motor? did you put 12 volts to it and it still did not turn on? if thats the case, the blower motor is bad. if you put 12 volts to the blower motor and it works, then it sounds like the BCM (body control module) is the culprit.

Posted on Oct 14, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

2012 jeep libery blower motor control processor location


Processor? This system consists of a control unit ( switch/selectors ) a blower motor resistor and a blower relay. If the blower fan is not working on all speeds, suspect a resistor ( common problem ). If the fan is inoperable, possible fan motor,fuse,relay,wiring and in some cases the resistor as well. The resistor is located under the passenger side dash area close to the heater motor. The wiring coming from the heater motor will plug into the resistor

Dec 26, 2015 | Jeep Cars & Trucks

1 Answer

Installed new blower motor. bearing shelled in old one. new motor won't blow. tested . it's good don't have power to moter. fuses good relay good. isthere a circuit breaker in wiring for b


I don't have a diagram for a 2008. On 2005 models the blower motor relay gets power from a 30amp fuse.
When the blower switch is in the high position the resistor is bypassed and power flows directly to the motor. The motor is grounded to the car.
The fan relay also gets power from a 7.5amp fuse and is controlled by the HVAC control on the dash.
Do you have power into and out of the relay?

Feb 25, 2013 | 2008 Mitsubishi Lancer

1 Answer

Trying to change out ac heater fan motor


Before changing out the blower motor, go to the underhood fuse block and check the 30A BCM 3 fuse. Next, go to the body control module (BCM) and check the 10A HVAC/PK 3 and HVAC/I/P IGN fuses. If the fuses are OK, start the car and operate the A/C request switch to close the HVAC relay and apply 12V to the blower motor. The motor should operate at a speed determined by your setting of the blower motor switch. If not, there could be a failure in any of the components mentioned but also the blower motor resistor string

Oct 15, 2012 | 2006 Chevrolet HHR LS

1 Answer

Heater won't blow


Check your blower motor resistor connection.Turn switch and fan on then wiggle the resistor pigtail fan should turn on if not replace resistor.These get to hot and usally melt the pigtail and loose their connection.

Jan 13, 2012 | 1998 GMC Savana

1 Answer

The heater fan won't stop, even if i turn off the key the fan still turn, unable to control it, it only turn at one speed (not the fastest one), i check the resistor it look like there's a short in it, the...


Your impala doesn't have a resistor , it has a blower motor control processor and it doesn't work the way you think it does
Chevy Trailblazer EXT Blower Motor Won Turn Off
Blower Motor Control Processor
The blower motor control processor is an interface between the HVAC control module and the blower motor. The blower motor speed control, battery positive voltage and ground circuits enable the control processor to operate. The HVAC control module provides a PWM signal to the control processor in order to command the blower motor speed. The processor supplies 12 volts to the blower motor through the blower motor voltage supply circuit. The control processor uses the blower motor ground as a low side control to adjust the blower motor speed.

HVAC Blower Motor Circuit

May 27, 2017 | Chevrolet Impala Cars & Trucks

1 Answer

Where is the fuse to the heater fan blower located in my 2005 Pontiac Grand Prix. Owners manual has 3 different fans. Is it the HVAC fuse or one of the 3 fans? The heater fan quit and want to check the...


Hi, should be listed as heater blower motor not fans ,the fans is the ones in front of radiator. most common problems are the blower motor resistor, which is in passenger side compartment near fire wall.This is were your blower motor is also. You can check and see if its getting power to resistor, with a test light if power is at resistor, check and see if you are getting power at blower motor if no power there replace resistor. But if you have power at motor replace blower motor. If i can help further just re post. thanks

Jan 05, 2011 | Pontiac Grand Prix Cars & Trucks

2 Answers

Fan blower does not turn on I replaced blower, resistor and even a relay but does not work. So I ran a power wire from battery to resistor and it works what can be the problem?


The heater control,where you turn it on,and off,pull it out,it is most likely burned up where the connector attaches to the switch,and the connector,will most likely have to be replaced.

May 18, 2010 | 1986 Oldsmobile Cutlass Supreme

1 Answer

MY HVAC fan stopped blowing. Checked all the


Check the blower motor speed control resistor pack is ok.
(The resistor pack is usually located in the blower fan ducting in the air flow).
Check condition of electrical connection terminals on the blower motor circuit - these terminals pass considerable current and over time may fatigue overheat and loosen.
Check operation/replace any blower motor control relay,
Check the blower motor will run if +12v directly applied to the blower motor.
Check operation of the blower motor speed control switch is ok.

Oct 08, 2009 | 2003 GMC Sierra

1 Answer

Blower fan only works on high


CHECK THE HVAC CTRL FUSE.

WITH A TEST LIGHT CHECK THE BLOWER RESISTOR FOR POWER ON THE YELLOW, TAN, PURPLE, AND LIGHT BLUE WIRES. THE ORANGE WIRES CONTROL THE HIGH SPEED CIRCUIT. DO THIS FOR EACH POSITION OF THE BLOWER SWITCH.

THE BROWN WIRE ON THE HVAC CONTROL CONNECTOR 1 POSITION B COMES FROM THE HVAC FUSE 20 AMP. NO POWER ON THAT WIRE WILL CAUSE THE BLOWER TO NOT FUNCTION ON THE LOWER SPEEDS.

Jul 14, 2009 | 2000 Pontiac Grand Prix

1 Answer

'01 Malibu Fans worked intermittently and weakly, now not at all.


Changed blower motor resistor and everything is working fine.

Nov 21, 2008 | 2001 Chevrolet Malibu

Not finding what you are looking for?
Cars & Trucks Logo

1,900 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8516 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...