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Ron Z.
Ron Z., - Pontiac Tech -
Category: Pontiac
Satisfied Customers: 18966
Experience:  18+yrs experience. State Inspector and Pontiac Diagnostics
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my pontiac G6 the heater switsc only works on high

Resolved Question:

my pontiac G6 the heater switsc only works on high
Submitted: 5 years ago via
Category: Pontiac
Expert:  Ron Z. replied 5 years ago.
Welcome to! My name is DriveFast71(Ron) and I will do my best to answer all of your questions completely and accurately.

When the Blower Motor only works on the highest setting, this is most commonly the sign of a faulty Blower Motor Resistor. This resistor is located under the passenger's side dash, mounted to the HVAC housing near the blower motor. Inspect the wire harness and electrical connector for any loose, broken or melted wires. If the visual inspection checks ok, suspect a faulty Resistor.
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