VUE AWD V6-3.5L VIN 4 (2004)
Control Assembly: All Technical Service Bulletins
A/C - Poor Performance/Erratic Operation
File in Section: 01 - HVAC
Bulletin No.: 03-01-37-003
Issue Date: December, 2003
Subject:
Inoperative HVAC Rear Defrost, Recirc, or Air Condition (AC) Mode switches and/or Reduced or No Airflow from Vents (Calibrate HVAC Module
Controller and/or Inspect C1 HVAC Controller Connector)
Models Affected:
2002-2004 Saturn VUE Vehicles
Attention: Technician
Condition:
Customers may comment that one or both of the following conditions exist:
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Condition 1 - The HVAC controller rear defrost, recirc, and/or A/C switch is inoperative.
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Condition 2 - Reduced or no airflow from outlets and/or selected HVAC modes are inoperative when the HVAC blower motor is on.
Cause:
The cause may be one of the following:
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Cause for Condition 1 - HVAC controller C1 connector is not fully inserted.
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Cause for Condition 2 - HVAC controller out of calibration or C1 connector is not fully inserted.
Correction:
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Correction for Condition 1 - Remove control head and ensure the C1 connector is fully inserted.
^ Correction for Condition 2 - Re-calibrate the controller and retest. If concern is not resolved, remove controller and ensure C1 connector is fully
inserted.
Procedure
Condition 1 - The HVAC controller rear defrost, recirc, and/or A/C switch is inoperative.
To inspect the C1 (20-way black) HVAC controller connector, perform the following:
HVAC Controller/Radio Bezel Removal