A/C Troubleshoot Assist

Asked by Jul 04, 2014 at 09:58 AM about the 2002 Honda Civic

Question type: Maintenance & Repair

So my 2002 Civic's A/C was intermittent for the past few years, either working great or not at all.  This summer it's been in the "not at all" category.  I popped the hood and turned the A/C on and the condenser fan doesn't spin.  Pulled out the relay and jumpered it with a paperclip and the fan runs like a champ.  But the relay's not bad; I swapped it with the horn relay, which I know works.  So I checked with the relay out and there's no voltage difference between the two control pins regardless of the state of the A/C pushbutton, so whatever's supposed to be pulling the relay in isn't doing it.  The light for the A/C being on is illuminated, meaning the car does think that it's turning the thing on.  Any advice what to check next?

1 Answer

60,915

Unless the horn and A/C relays are the same internally the relay swap test is not valid. Check for a relay for just the A/C compressor. Most vehicles have them. It may be marked "HVAC" on the fuse/ relay center. The fans may not come on automatically when you switch on the air conditioning. It depends on the vehicle. My '08 Grand Marquis does but my '00 Grand Prix does not. Have you checked the refrigerant charge? If it's low the compressor won't come on. HTH. -Jim

Your Answer

Add photo

Related Questions

  • Having problems with my 99 Honda Civic. 1 answer

    Car starts fine, but will jerk when driving. Codes come up as Fuel Pressure Regulator Control Circuit and Air Assisted Injector Control Circuit HIGH. Anyone have any suggestions?

    1999 Honda Civic EX

    -

    Maintenance & Repair

  • Locked car 1 answer

    I have a 90 Honda Civic, this morning I started up and went to open my gate. I accidentally locked the keys inside and couldn't get it open. I had to go to work so I left it running and took my wi...

    1990 Honda Civic

    -

    Maintenance & Repair

  • O2 sensors 1 answer

    Just bought a 1989 honda civic lx, it runs great for about 15 minutes then the check engine light comes on, recently just changed the oil but light still comes on, I believe it's the o2 sensor beca...

    1989 Honda Civic LX

    -

    Maintenance & Repair

  • Randomly dies... replaced so many parts. Please help! 8 answers

    I have a 95 Honda Civic. At first my car randomly starting dying while I was driving, could turn it back on and continue driving to my destination (thought it was just cold). Then I couldn't leave my ...

    1995 Honda Civic EX

    -

    Maintenance & Repair

  • My 2008 Honda Civic makes a weird noise when turning the steering wheel. What could it be? 1 answer

    2008 Honda Civic LX

    -

    General

Search Honda Civic Questions

Honda Civic Experts

#1 Takoda Fraser
Takoda Fraser
Reputation 970
#2 Jonathan Ford
Jonathan Ford
Reputation 960
#3 Tom Demyan
Tom Demyan
Reputation 910
View All

Related Models For Sale

Used Honda Accord
888 Great Deals out of 82,090 listings starting at $999
Used Honda Civic Coupe
201 Great Deals out of 18,662 listings starting at $1,500
Used Toyota Corolla
924 Great Deals out of 74,282 listings starting at $1,500
Used Toyota Camry
1,086 Great Deals out of 98,044 listings starting at $1,250
Used Honda CR-V
904 Great Deals out of 61,520 listings starting at $1,200
Used Nissan Altima
1,099 Great Deals out of 83,208 listings starting at $670
Used Hyundai Elantra
610 Great Deals out of 55,144 listings starting at $895
Used Honda Accord Coupe
171 Great Deals out of 10,768 listings starting at $2,200
Used BMW 3 Series
1,471 Great Deals out of 38,438 listings starting at $1,700
Used Ford Focus
745 Great Deals out of 59,013 listings starting at $995
Used Ford Mustang
399 Great Deals out of 44,403 listings starting at $1,000
Used Volkswagen Jetta
536 Great Deals out of 31,093 listings starting at $1,200
Used Nissan Sentra
610 Great Deals out of 53,116 listings starting at $1,799

Used Cars For Sale

2017 Honda Civic For Sale
47,881 listings starting at $14,502
2016 Honda Civic For Sale
44 Great Deals out of 6,914 listings starting at $12,995
2015 Honda Civic For Sale
100 Great Deals out of 3,031 listings starting at $9,991
2014 Honda Civic For Sale
90 Great Deals out of 3,410 listings starting at $8,983
2013 Honda Civic For Sale
213 Great Deals out of 5,272 listings starting at $6,995