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Honda-Man, Honda Mechanic
Category: Honda
Satisfied Customers: 2843
Experience:  I have an Associates Degree in Automotive. 10 Years experience on all makes and models. 20 Years Honda only including factory training. Over 30 years total.
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2004 Honda Odyssey. A/C Heater Defroster is stuck on

Customer Question

2004 Honda Odyssey. A/C Heater Defroster is stuck on Defroster and outside located dash vents. No floor service or mixture. Replaced mode doors, actuator and control head... still will not shift off of defroster. Any ideas?
Submitted: 14 days ago.
Category: Honda
Expert:  Honda-Man replied 14 days ago.

Thank you for taking time to ask your Honda-Acura question on JustAnswer. My name is ***** ***** online handle is Honda-Man I will be assisting you.

Expert:  Honda-Man replied 14 days ago.

Can you please look at the diagram and tell me what parts you have replaced?

Thank you,


Customer: replied 14 days ago.
air mix control motor and climate control unit
Expert:  Honda-Man replied 14 days ago.

The mode control motor works the vent flap for defrost, vents, and floor settings. It's on the drivers side of the heater unit(box). I would remove it and work the levers by hand. Most likely just a bad mode motor. The air mix blends the air from the heater core and A/C evaporator depending on temp setting.



Customer: replied 14 days ago.
Do you have the part # for the air mode control motor?
Expert:  Honda-Man replied 14 days ago.

Sure, EX, EX-L, Or LX? Auto or manual system?

Customer: replied 14 days ago.
Bought used with no owners manual
Title listed Vin# ***** 2004, Honda, (no model description given) Body style Sta-Wagon
No marking on van for ex, ex-l, or lx
Heater/Defroster has Auto setting and manual settings, so I hope this information helps.
Expert:  Honda-Man replied 13 days ago.

Honda Part No.: 79140-S0X-A01

Motor Assy., Mode

Looked up with your EX VIN. Click the link for price and online source.



Customer: replied 13 days ago.
I'll get back with you with an update.
Expert:  Honda-Man replied 13 days ago.

Sounds good.

Customer: replied 13 days ago.
When I bring up Part# ***** is for the "air mix control motor" not the "mode control motor"...
Customer: replied 13 days ago.
Sorry you had it right. Just too many pieces of paper in front of me.
Expert:  Honda-Man replied 13 days ago.

No Problem, thanks again.