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Replace hvac blower electronic module 2004 lasabre

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  • 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

  • 7353 Answers

SOURCE: Where is the HVAC module on a 2002 Impala? Need to

Under the right side of the dash, above the passengers feet, its right there near the blower motor.

Posted on Dec 14, 2009

Testimonial: "Found it, was easy to fix myself. Thank you very much..Happy Holidays/Merry Christmas (whatever applicable) "

  • 1985 Answers

SOURCE: HVAC Blower Motor on my 2005 LaSabre is not running.

the blower motor is under the glove box,turn the key on then the blower switch to high and check with test light.if no power check the blower motor resistor.

Posted on Dec 17, 2009

  • 1450 Answers

SOURCE: 2004 TrailBlazer: Where's the HVAC module drain on a trailblazer? Is...

yes it will be on bottom of box going out firewall

Posted on May 20, 2010

  • 1796 Answers

SOURCE: how do I access

To remove the blower motor in your vehicle, please follow this steps.
Select the following settings:

  1. Turn the ignition ON
  2. Select Recirc in the OFF setting
  3. Turn the ignition OFF
  • Disconnect the negative battery cable.
  • Remove the wiper arm assemblies.
CAUTION A sharp edge is revealed once the weatherstrip is removed.
  • Remove the weatherstrip at rear of the engine compartment.
  • Remove the cowl retaining nuts.
  • Remove the cowl screen assembly.
  • Rotate the locking tabs outward to release the filter assembly.
  • Remove the filter by lifting straight up.
  • Remove the wiper module retaining bolts.
  • Reposition the wiper module to the right.
  • Remove the filter housing attachment bolts.
  • Remove the filter housing.
  • Remove the blower motor housing:
  • Remove the blower motor housing screws
  • Release the locking tabs and remove the fan housing
  • Disconnect the blower motor electrical connector.
  • Squeeze the bottom of the connector and pull downward.
  • Remove the blower motor assembly by lifting straight out.
Here are some diagrams to make the removal easier.

Good Luck! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.

Posted on Jan 08, 2011

  • 5332 Answers

SOURCE: My 2004 Trailblazer HVAC blower

Sure sounds like it. Since the lower speeds use the higher speed resistors it is likley the speed three resistor is burnt out.

check out this tip for more info on how to check it out.

Posted on Jul 12, 2011

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What fuse goes to the ac/heater fan in a 2004 Buick Rendevous

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See ign fuse 3--40 amp toward the right, in power distribution center under the hood, it sends voltage to blower motor control module. The two fuses toward the left, among other places, sends voltage to hvac control module. I looked up info for automatic hvac. Are there any applicable hvac trouble codes? At the moment, I can't rule out the blower motor itself?

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Diagram showing location of blower motor and installation for 2004 cadallic sedan 8 cyl

. How do you know you need one ? Did you do electrical circuit testing ? Is your HVAC - heater / A/C system automatic or manual ? Could need a blower motor control processor ! Electronic module . Did you check the blower motor fuse ? HVAC /BLO fuse 40amp in the rear fuse block ? Under the back seat ?

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Blower motor control module would be a good guess , but is still just a guess . Testing the electrical circuit would need to be done to know for sure . Do you know how to test electronic's , automotive electrical circuits ?

HVAC Blower Controls Circuit Description
The blower motor is controlled by the blower control module. The blower control module receives the requested blower speed from the heater and A/C control in the form of a 5 volt pulse modulated reference signal. When low speed is requested by the heater and A/C control, the pulse width is reduced. When high blower speed is requested, the pulse width is increased. An open circuit, short to ground or short to battery on the blower speed input circuit of the blower control module will disrupt the pulse modulated reference signal. If the blower control module does not receive the pulse modulated signal, the blower motor will not operate. The blower control module receives power from the rear fuse block. The blower control module also provides a ground for the blower motor. A separate blower motor flange ground is used to limit radio frequency interference.

HVAC Blower Motor Circuit

Mar 24, 2017 | Pontiac Cars & Trucks

1 Answer

Blower fan not working at all 2004 Buick rendezvous

Which system ?
HVAC Systems - Manual HVAC Systems - Automatic
If automatic it's probably the blower motor control processor .
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, Blower motor speed signal, battery positive voltage and ground circuits enable the control processor to operate. The HVAC control module sends the commanded blower motor speed to the control processor through a 0 to 12-volt linear ramped blower motor speed control circuit. As the blower motor speed control voltage increases, the blower motor speed increases. The control processor sends the actual blower speed to the control module through a 0 to 12-volt blower motor speed signal circuit. The processor supplies 12volts 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.

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1 Answer

2008 dts caddy blower motor resister location

Your not going to like to hear this , but you'll need to take the dash apart !
Blower Motor Resistor Replacement
Preliminary Procedure
  1. Remove the HVAC module. Refer to HVAC Module Assembly Replacement .
Preliminary Procedure
  1. Drain the cooling system. Refer to Cooling System Draining and Filling .
  2. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging .
  3. Remove the evaporator tube from the thermal expansion valve. Refer to Air Conditioning Evaporator Hose Assembly Replacement .
  4. Remove the heater hoses from the heater core. Refer to Heater Hoses Replacement .
  5. Remove the brake pedal bracket assembly. Refer to Brake Pedal Assembly Replacement .
  6. Pull back and reposition the carpet.
  7. Remove the lower instrument panel (I/P) support brace. Refer to Instrument Panel Center Support Bracket Replacement .
  8. Reposition the auxiliary air distribution duct. Refer to Auxiliary Air Distributor Duct Replacement .
  9. Remove the instrument panel carrier. Refer to Instrument Panel Carrier Replacement .
  10. Disconnect the HVAC module assembly electrical connectors.
HVAC Module Assembly Nut (Qty: 5)
Tighten the nuts in sequence.
9 N?·m (80 lb in)
HVAC Assembly Module
Disconnect the blower motor resistor electrical connector.

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What causes a/c to blows cold on driver's side and hot on passenger side ?

There is a little motor on the heater box under the dash that needs to be replaced. It's called a blend door actuator...

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Blower motor problems

There are three fuses involved.
A 10amp and 15amp that powers the control, and a 30amp that actually powers the blower motor control processor and the motor itself.
Do you have power on all three circuits ?

Feb 21, 2013 | 2004 Chevrolet Monte Carlo

1 Answer

HVAC Blower Motor on my 2005 LaSabre is not running.

the blower motor is under the glove box,turn the key on then the blower switch to high and check with test light.if no power check the blower motor resistor.

Dec 16, 2009 | 2005 Buick LeSabre

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2003 pontiac GP blower motor only works on high when it wants to ihave already replaced the dash control unit the a/c control module and the plug in to the module all with GM parts and its onlyy worked for...

have you replaced the blower motor resistor this is what controls the speed of the blower motor it is located near the blower motor in the hvac box

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