2006 Chevy Silverado

NY 986

Well-known Member
I got into the truck this morning and the fan is not working. I suspect the switch is the problem. I do not see any screws on the console so how hard is it to access the switch?
 
does that use a resistor to control the fan like many GM cars do. Located in the bottom of the heater duct located on right side of the floor hump. 2- 1/4" sized headed screws to remove it.
 
Its a bugger. There was talk on here awhile back about the fans. Think the general consensus was a relay or some such.
 
Blower resistor and or burned wiring at plug, under glove box, down and forward.
 
Hi, I am really interested in this piece of information. My 2005 Silverado has exactly the same problem. Prephaps all of us working together from many parts of the world can make the necessary repair? Cheers, Murray
 
If you mean the heater blower there was a recall on the fan resister. Check with the dealer they repairing it no charge.
Bill
 
i had the same problem.and like someone else mentioned the problem is down under the glove box.the one on mine was all melted together/burnt wires.
RICK
 
The resistor in my 04' gave out. I replaced it with one from the local auto supply.(right across the road from the Chevy dealer). Months later I got a GM recall notice. Still had the receipt in my farm expense files, and they paid for it.
Didn't offer any labor though! As usual, my time is worthless.
 
Here is one of the bulletins. Their is one if the fan stays running with key off. Sorry for log post. David #10240A: Special Coverage Adjustment - Heating, Ventilation, and Air Conditioning Blower Not Fully Functional or Inoperative - (Jan 4, 2012)
Subject: 10240A – Special Coverage Adjustment – Heating, Ventilation, and Air Conditioning Blower Not Fully Functional or Inoperative

Models: 2003-2006 Chevrolet Avalanche, Suburban Tahoe
2003-2007 Chevrolet Silverado
2003-2006 GMC Yukon, Yukon XL
2003-2007 GMC Sierra
Equipped with Manual HVAC (CJ3) or Heavy Duty Heater (C42)

--------------------------------------------------------------------------------

Customer letters for this Special Coverage were mailed in phases. Letters for the final phase will begin mailing on January 4, 2012, and so the reimbursement expiration date for this Special Coverage has been extended to January 31, 2013. Please discard all copies of bulletin 10240, issued May 2011.


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Condition
On some 2003-2006 model year Chevrolet Avalanche, Suburban, Tahoe; GMC Yukon, Yukon XL; and 2003-2007 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a manual heating, ventilation, and air conditioning (HVAC) system (CJ3) or heavy duty heater (C42), the interface between the electrical terminals of the relay resistor module and the wiring connector that powers the module may be incapable of conducting higher current levels for sustained periods of blower motor operation. In addition, moisture and other contaminants may enter the fresh air intake plenum and contact the internal circuit of the module or corrode the terminals. If any of these were to occur, the relay resistor module or wiring connector could overheat and the HVAC blower may not function on certain blower settings or may be inoperative. This may be accompanied by a burning smell or smoke.

Special Policy Coverage Adjustment
This special coverage covers the condition described above for a period of 10 years or 150,000 miles (240,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership.

Dealers are to install a new blower motor resistor and resistor module connector. The repairs will be made at no charge to the customer.

For vehicles covered by Vehicle Service Contracts, all eligible claims with repair orders on or after May 10, 2011, are covered by this special coverage and must be submitted using the labor operation codes provided with this bulletin. Claims with repair orders prior to May 10, 2011, must be submitted to the Service Contract provider.

Vehicles Involved
Involved are certain 2003-2006 model year Chevrolet Avalanche, Suburban, Tahoe; GMC Yukon, Yukon XL; and 2003-2007 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a manual HVAC (CJ3) or heavy duty heater (C42).

Important: Dealers are to confirm vehicle eligibility prior to beginning repairs by using the Applicable Warranties section in the Global Warranty Management system.

Parts Information
Parts required to complete this special coverage are to be obtained from General Motors Customer Care and Aftersales (GMCC&A).

Part Number
Description
Qty/ Vehicle

15862656
Connector, SW-Pwr St Adjr
1

89019088
Resistor, Blo Mot (A/C & Htr)
1

89019089
Resistor, Blo Mot (Heater Only)
1


Service Procedure
Note: The resistor module connector and blower motor resistor will need to be replaced if one or more of the symptoms below is present.

•The HVAC blower may not function on certain or all blower speed settings
•A burning plastic smell or smoke may be present in the vehicle
•The HVAC blower may run continually with the ignition in the OFF position
Determine if one or more of the above symptoms is present. If required, refer to HVAC diagnostic information in SI. Refer to Resistor Module Connector and Blower Motor Resistor Replacement in this bulletin if one or more of the symptoms are present. Other HVAC repairs are NOT covered in this product safety special coverage bulletin.

Resistor Module Connector and Blower Motor Resistor Replacement
 1. Remove the blower fuses (Htr A/C & HVAC 1 fuses).
 2. Lower the close-out panel enough to gain access to the resistor module connector.
 3. Disconnect the connector from the resistor module.
Note: Connector replacement is required even if the connector was replaced on a previous service repair.

 4. Remove the tape from the wiring harness to expose the wiring.
Object ID: 1709080Click here for detailed picture of the image.

 5. Cut the wires back far enough from the connector to eliminate any melted insulation on the wire.
Note: Use the old connector as a map for splicing the wires for the new connector. Be sure to use the correct crimping tool from the terminal repair kit J 38125. Use only Duraseal splice sleeves. Other splice sleeves may not protect the splice from moisture or provide a good electrical connection.

 6. Install the new connector. Use the yellow splice sleeves provided with the connector.
 7. Install the new blower motor resistor.
 8. Reinstall the fuses. Test the blower motor to make sure all speeds are functional.
 9. Reinstall the hush panel/close-out panel.
Customer Reimbursement – For US
Customer requests for reimbursement of previously paid repairs to correct the condition described in this bulletin are to be submitted to the dealer by January 31, 2013, unless otherwise specified by state law. If this is not convenient for the customer, they may mail the completed form and all required documents to the GM Customer Assistance Center. Repairs must have occurred within the 10 years of the date the vehicle was originally placed in service, or 150,000 miles, whichever occurs first.
 
If the blower works on "5" then it is the resistor.

The 5 setting is 12V direct to the motor and it will always work.

Replacing the resistor is a 5 minute job. It's very easy to get to. Right by your left big toe as you sit in the front passenger seat. Just two screws and two plugs. You need a small metric wrench for the screws, 7mm IIRC. 1/4" drive deep well socket works best.
 

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