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Mode buttons, recir, A/C and rear defroster buttons do not work

Tiny
DVISCO
  • MEMBER
  • 1999 HONDA ACCORD
  • 12,000 MILES
I have a four cylinder and just today all of the mode buttons (5) stopped working and the other three buttons on that panel (Recirculation, A/C and rear defroster) also do not work. However, the fan control dial works.

I cannot find a fuse that controls those eight buttons. Is this something that I can fix with a fuse or relay?

Thank you,

Don
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Monday, October 17th, 2011 AT 7:23 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
Don:

check to see if the system is vacuum operated. If it is, check for a vacuum hose. If you are lucky, with the engine running, you may hear a hissing noise.
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Tuesday, October 18th, 2011 AT 12:34 AM
Tiny
DVISCO
  • MEMBER
  • 2 POSTS
I could not find information that the system was vacuum operated (not in the owner's manual) and I did not hear any hiss.

What else could it be?

Thank you,

Don
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Tuesday, October 18th, 2011 AT 1:16 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,772 POSTS
Don, check under the dash to see if there are vacuum hoses running from the control panel to different areas on the HVAC.
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Wednesday, October 19th, 2011 AT 3:11 PM

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