Sierra 1500 4WD V8-6.0L VIN U (2006)
Blower Motor Resistor: All Technical Service Bulletins
A/C - Blower Motor Inop. or Works On Low Speed Only
Bulletin No.: 05-01-38-012C
Date: November 02, 2006
TECHNICAL
Subject:
EI05082 - Loss of Blower Motor Speeds Except for Low Speed or Inoperative (Replace Blower Motor Resistor and Resistor Module Connector)
Models:
2004-2006 Chevrolet Avalanche, Silverado, Suburban, Tahoe, TrailBlazer, TrailBlazer EXT
2007 Chevrolet Silverado (Classic) Built Prior to September 1, 2006
2004-2006 GMC Envoy, Envoy XL, Sierra, Yukon, Yukon Denali, Yukon XL
2007 GMC Sierra (Classic) Built Prior to September 1, 2006
with HVAC System AC Front, Manual Temp Control (RPO CJ3) or Heater Only (RPO C42)
Supercede:
This bulletin is being revised to clarify the Warranty Information. Please discard Corporate Bulletin Number 05-01-38-012B (Section 01 - HVAC).
Condition
Some customers may comment that the blower will only work on low speeds or has become inoperative.
Correction
REPLACE THE BLOWER MOTOR RESISTOR AND RESISTOR MODULE CONNECTOR.
Replace the blower motor resistor and module connector using the following procedure:
Remove the blower fuse.
Fullsize Trucks and Utility Vehicles - Htr A/C & HVAC 1 fuses
Midsize Utility Vehicles - Blower Fuse 35 located in the Underhood Fuse Block
Lower the hush panel or close-out panel enough to gain access to the resistor module connector.
Disconnect the connector from the resistor module.
Remove the tape from the wiring harness to expose the wiring.