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Home >> Chevrolet >> 2007 >> Express 2500 V8-4.8L >> Repair and Diagnosis >> Heating and Air Conditioning >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Diagnosis By Symptom - HVAC System - Manual >> Auxiliary Blower Motor Always On (Passenger Van w/Aux)

Auxiliary Blower Motor Always On (Passenger Van w/Aux)



Auxiliary Blower Motor Always On (Passenger Van w/Aux)

Test Description

Step 1 - Step 12:




Step 13 - Step 26:




Step 27 - Step 31:




The numbers below refer to the step numbers on the diagnostic table.
15. The auxiliary blower motor switch control circuit is the circuit that enables the rear auxiliary HVAC control assembly when the front auxiliary blower motor switch is placed in the rear control position.
16. The auxiliary blower motor switch control circuit is the circuit that enables the rear auxiliary HVAC control assembly when the front auxiliary blower motor switch is placed in the rear control position.