Notices
Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Radiator Fan and HVAC Panel not working

Thread Tools
 
Search this Thread
 
Old 07-20-2012, 06:06 PM
  #1  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Radiator Fan and HVAC Panel not working

Hi all,

Today I was working on my 1996 Honda Civic DX and while testing my AC system, I saw a spark in the fuse box while jumping the condensor fan relay and then my radiator fan stopped working and the green and amber lights on my HVAC panel stopped working. Was wondering about any suggestions and where exactly the radiator fan fuse is as I have been scouring through the owners manual and online to find out which fuses to check. Thanks!
Old 07-20-2012, 06:36 PM
  #2  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Ahh, I feel stupid now, just found the fuse in the diagram - #57. The fuse looks alright, but the fan is still not turning on and the Heater control panel is still not showing the green/amber lights. It is showing the backlight bulbs.
Old 07-20-2012, 08:36 PM
  #3  
Honda-Tech Member
 
redm3turbo's Avatar
 
Join Date: Nov 2005
Location: New York, NY, US
Posts: 1,293
Received 4 Likes on 1 Post
Default Re: Radiator Fan and HVAC Panel not working

id jump that fan to make sure it still works. A buddy of mine while hooking up an amp took out the fan motor (among other things)

now he just pays me to work on his car...lol for good reason
Old 07-20-2012, 08:40 PM
  #4  
Honda-Tech Member
 
redm3turbo's Avatar
 
Join Date: Nov 2005
Location: New York, NY, US
Posts: 1,293
Received 4 Likes on 1 Post
Default Re: Radiator Fan and HVAC Panel not working

as for hvac panel....

https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/1996-honda-civic-si-climate-control-lights-2640618/

quick search here will answer practically anything you can dream of.
Old 07-21-2012, 01:25 AM
  #5  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

7.5A dash fuse 17
Old 07-21-2012, 04:33 AM
  #6  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Alright, looks like I've got the radiator fan and the panel working correctly (I counted the fuses wrong haha, learned not to count the spare fuse under the dash). Now the A/C button turns green, but the condensor fan and the compressor do not start. I've tested the relays and they are working, I jumped the 2/1, 3/1 on both relays and both start their respective circuits. Any ideas as to this problem? Thanks for the help (and putting up with my late night stupidity)!
Old 07-21-2012, 04:39 AM
  #7  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

20A hood fuse 56
Old 07-21-2012, 05:43 AM
  #8  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Okay, just checked the fuse it was okay but replaced just in case, AC compressor still not turning on.
Old 07-21-2012, 09:34 AM
  #9  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Fan running?
Old 07-21-2012, 10:38 AM
  #10  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Radiator fan is running, the condensor fan is not.
Old 07-21-2012, 11:04 AM
  #11  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Unplug the a/c thermostat and ground the blu/wht wire in the plug. Does the fan and clutch now work?
Old 07-21-2012, 11:47 AM
  #12  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Which connector is for the a/c thermostat? The wires on the right side of the condensor?
Old 07-21-2012, 12:28 PM
  #13  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Evaporator - behind glove box.
Old 07-21-2012, 12:56 PM
  #14  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Yes grounding the wire turns everything on!
Old 07-21-2012, 01:02 PM
  #15  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Reconnect the thermostat and then unplug the connector at the rear of the heater control panel. You'll see a Blu/Red wire in the connector. Ground it and then turn the key to ON(II). Does the A/C fan turn on (no need to press A/C button)?
Attached Images  
Old 07-21-2012, 01:35 PM
  #16  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Mine only has twelve connections but after grounding all of them, only the blower motor and the ac light came on. I can post a pic if it helps.
Old 07-21-2012, 02:11 PM
  #17  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

It's probably the wrong connector. It should have 14 wires. Did you find a Blu/Red wire in the connector? Post a picture.
Old 07-21-2012, 02:16 PM
  #18  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Okay just a sec it is a brown connector does that sound right?

EDIT:Never mind, I just found the green connector behind the temperature slider, will ground wire and post results.

Last edited by newyork167; 07-21-2012 at 03:17 PM. Reason: Found connector
Old 07-21-2012, 02:27 PM
  #19  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Okay grounded the red/blue wire and turned on, no activity in a/c.
Old 07-21-2012, 06:15 PM
  #20  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Originally Posted by newyork167
Okay grounded the red/blue wire and turned on, no activity in a/c.
Your test results indicate that the heater control panel is bad.
Old 07-22-2012, 05:02 AM
  #21  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Will I need to replace the entire climate control module?
Old 07-22-2012, 05:04 AM
  #22  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Yes. You can buy either a new one or used one from a 96-98 Civic.
Old 07-22-2012, 05:10 AM
  #23  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Thanks very much! I will post my results as soon as I get a new one installed.
Old 07-22-2012, 05:14 AM
  #24  
Honda-Tech Member
 
Former User's Avatar
 
Join Date: Feb 2008
Posts: 45,219
Likes: 0
Received 44 Likes on 22 Posts
Default Re: Radiator Fan and HVAC Panel not working

Originally Posted by newyork167
Okay grounded the red/blue wire and turned on, no activity in a/c.
Is this^ a typo? And are you saying here^ that the condenser fan ran when you grounded the Blu/Red wire?
Old 07-22-2012, 05:22 AM
  #25  
Honda-Tech Member
Thread Starter
 
newyork167's Avatar
 
Join Date: Feb 2010
Posts: 52
Likes: 0
Received 0 Likes on 0 Posts
Default Re: Radiator Fan and HVAC Panel not working

Yeah, sorry it was the blu/red wire. When I grounded that wire, I did not see the condensor fan start.


Quick Reply: Radiator Fan and HVAC Panel not working



All times are GMT -8. The time now is 04:54 AM.