How is the blower motor connected
How is the blower motor connected
04 Chevy Express 1500
Can someone please assist me with a blower motor electrical diagram.
Specifically the Orange wire from the resistor block.
I assume it goes to the HVAC control module.
Thanks in Advance
Can someone please assist me with a blower motor electrical diagram.
Specifically the Orange wire from the resistor block.
I assume it goes to the HVAC control module.
Thanks in Advance
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Re: 04 Chevy Express 1500
Welcome to the forum.
Orange wire goes to your control panel switch.
The website charm.li is an excellent source for wiring diagrams.
What's happening with your van?
Orange wire goes to your control panel switch.
The website charm.li is an excellent source for wiring diagrams.
What's happening with your van?
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Re: How is the blower motor connected
I didn't receive any notifications on this.
I have no blower motor in any switch positions.
I believe my 07 has an electric selector ( damper position ) where as this 04 has vacuum.
How does it transition from a orange electric wire to a vacuum controller.
Is there a vacuum switch of some sort ?
Is it internal to the HVAC control ?
I'm thinking I can jump Brown #141 to White #119 @ the 8 pin connector of said control to test this.
Thanks for your assistance.
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Re: How is the blower motor connected
Blower motor control is all electric. No vacuum involved whatsoever.
First step is to check your fuses, and test your blower with 12V to make sure it works.
First step is to check your fuses, and test your blower with 12V to make sure it works.
Re: How is the blower motor connected
Been there done that on both former and latter.
Blower runs if I jump red/black to orange at the resistor block.
Do you have a diagram of the 8 pin connector at the hvac control module ?
Additionally there's a jumper I circled in red that connects the electric to the vacuum assembly at the HVAC control module. At least that is how it appears on that diagram.
Blower runs if I jump red/black to orange at the resistor block.
Do you have a diagram of the 8 pin connector at the hvac control module ?
Additionally there's a jumper I circled in red that connects the electric to the vacuum assembly at the HVAC control module. At least that is how it appears on that diagram.
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- Sheriff
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I have my van tatooed on my cheeks
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- Joined: Fri Aug 08, 2008 12:55 pm
- Location: The Pacific North Wet
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- Sheriff
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I have my van tatooed on my cheeks
- Posts: 3246
- Joined: Fri Aug 08, 2008 12:55 pm
- Location: The Pacific North Wet
Re: How is the blower motor connected
So according to the posted diagram ... the control panel gets its power on C2 (connector 2), pin E (5th from top left according to alphabet).
Do you have 12V there?
Do you have 12V there?
Re: How is the blower motor connected
This is were my thinking was to jump across there to take the damper position out of the equation.
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Re: How is the blower motor connected
A multi-meter or test light is an essential tool for circuit diagnosis.
Wire color should be brown.
Wire color should be brown.
Re: How is the blower motor connected
Yes I agree and use my Fluke every day servicing commercial HVAC equipment.
A jumper is essential as well to bypass components that may be a problem.
I'll get back on this soon and post back my findings.
Again I appreciate your assistance.
A jumper is essential as well to bypass components that may be a problem.
I'll get back on this soon and post back my findings.
Again I appreciate your assistance.