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JOHN aka Eauto
JOHN aka Eauto, The Car Guy
Category: Chevy
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silverado crew cab half ton 4wd 2006...blower motor

Customer Question

i have a silverado crew cab half ton 4wd 2006. my heater blower motor not working at all can yu help me
Submitted: 6 years ago.
Category: Chevy
Expert:  JOHN aka Eauto replied 6 years ago.

here is a service bulletin on this

Bulletin No.: 06-01-39-002C

Date: January 18, 2008

TECHNICAL

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)

Supercede:

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).

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

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

Warranty Information

For vehicles repaired under warranty, use the table.