2005 Chevy Truck Blower motor

There is a bulletin on this, the first one has been superseded, as shown. The reissue is attached as well. I would disregard the 'cold temps' as this fits the criteria for your failure.

#04-01-39-009C: HVAC Blower Motor Inoperative or Stays Running (Replace Blower Motor Control Module) - (Feb 28, 2007)


Subject: HVAC Blower Motor Inoperative or Stays Running (Replace Blower Motor Control Module)


Models: 2004-2005 Buick Rainier

2003-2005 Cadillac Escalade, Escalade ESV, Escalade EXT

2003-2005 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer, TrailBlazer EXT

2003-2005 GMC Envoy, Envoy XL, Sierra, Sierra Denali, Yukon, Yukon Denali, Yukon XL

2004-2005 GMC Envoy XUV

2003-2004 Oldsmobile Bravada

2003-2005 HUMMER H2

with Automatic Temperature Control HVAC Systems Only (RPO CJ2)
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This bulletin is being cancelled due to the information contained in it being superseded by information published in Corporate Bulletin 06-01-39-002A. Please discard Corporate Bulletin Number 04-01-39-009B (Section 01 -- HVAC).


#06-01-39-002C: Blower Motor Inoperative or May Not Shut Off in Extremely Low Ambient Temperature Conditions (Replace Blower Motor Control Module) - (Jan 18, 2008)


Subject: Blower Motor Inoperative or May Not Shut Off in Extremely Low Ambient Temperature Conditions (Replace Blower Motor Control Module)


Models: 2004-2007 Buick Rainier

2003-2006 Cadillac Escalade Models

2003-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe

2003-2007 Chevrolet TrailBlazer Models

2007 Chevrolet Silverado (Classic)

2003-2006 GMC Sierra Models, Yukon Models

2003-2007 GMC Envoy Models

2007 GMC Sierra (Classic)

2003-2004 Oldsmobile Bravada

2003-2006 HUMMER H2 Models

with Automatic Temperature Control HVAC System (RPO CJ2)




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This bulletin is being revised to update the model years that are affected and add the Oldsmobile Bravada. Please discard Corporate Bulletin Number 06-01-39-002B (Section 01 -- HVAC).


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Condition
Some customers may comment that the blower motor is inoperative or continues to run after the vehicle has been shut off.

Cause
These conditions may be caused by a blower motor control module failure. This failure may occur when the vehicle is operated in ambient temperature conditions of -23°C (-10°F) or below.

Correction
Important: Replace the blower motor control module if the vehicle experienced a blower motor control module failure in extremely cold ambient temperature conditions.

Technicians are to replace the blower motor control module, also called the Linear Power Module (LPM), with the P/N listed below. Refer to either the Blower Motor Control Processor Replacement or Blower Motor Processor Replacement-Auxiliary procedures in SI. After replacement of the blower motor control module, the customer may notice a slightly higher than expected blower motor speed at any of the blower speed settings.

Parts Information
Part Number
Description
Qty


89018964
Module, HTR & BLO & A/C CONT (Front system only vehicles - Except H2)
1

This unit is located down near the blower motor.