Questions & Answers for: Chevrolet no speed control

Question about 2003 Impala

Air control wont work on speed 1, air is blowing from 3 points

...control wont work on speed 1, air is blowing from 3 points blower will only start at #2 speed, then we noticed air mostly coming from floorvents, some still comes at mid vents and defroster. doesn't ...

Question about 2003 Malibu

1 Answer

2003 Chev Malibu.V6, loaded: HVAC: control head

...head in dash OR the blower motor OR other?? thx, under the dash on the right side ,look for a plug with 5 wires . That switch is called a RHEOSTAT.(fan speed control).Sounds like it is ...

Question about 2002 Silverado

1 Answer

Low speed on heater fan does not work. All other

...on heater fan does not work. All other speeds work great. How do I fix this? You will need to inspect and test the speed control resister and the speed control knob first. What have you done so

Question about 2002 Silverado

3 Answers

1994 Chevy Caprice Heat/ Ac blower speed control troubleshooting

...speed control troubleshooting fan speed control went out and all i have is high speed on my AC. Now the high speed only turns on sometimes. (The Heat/AC fan setting. 1-Low, 2-Med/Low, 3-Med/High, and ...

Question about 2005 Tahoe

1 Answer

Blower stays on after key is removed, now a/c works in front once I hit the highway.

...speed control circuit. As the requested blower speed increases, the HVAC control module increases the amount of time that the speed signal is modulated to ground. As the requested blower speed ...

Question about 2005 Trailblazer Ext

4 Answers

2005 Chevy trailblazer ext problems 1. Cruise will not set.worked last on 4/12/15 2. While checking fuses for CC problemdome lights stopped working, but worked fine before checking fuses. PLEASE HELP!

control the vehicle speed. For further information on the TAC system, refer to Throttle Actuator Control (TAC) System Description . Ignition positive voltage is supplied from the 10-amp HVAC 1 fuse to

Question about 2009 Chevrolet Equinox LS

1 Answer

Cruise control not working

...control switch either or all not working will stop the cruise control from engaging road speed at which you can engage the cruise control has to be above a reset speed before it will cut in and ...

Question about 2008 Chevrolet TrailBlazer LT

1 Answer

If I have voltage going to the blower motor from the resister on a 2008 trailblazer with auto climate, why would the blower motor not work

Question about 2012 Chevrolet Impala LT

2 Answers

I replaced the blower, and resister on my 2012 chevy. impala but blower still don't work. What fuse do I need to check

...speed control, battery positive voltage and ground circuits enable the control processor to operate. The HVAC control module provides a pulse width modulation (PWM) signal to the control processor in ...

Question about 2012 Chevrolet Impala LT

1 Answer

I have a 2008 Chevrolet Uplander and we are looking to replace a fuse for the rear air. Can you tell me where it is located?

...speed control, auxiliary blower motor speed signal, blower motor speed control, and ground circuits enable the control processor to operate. The HVAC control module sends the commanded blower motor ...