where is the automatic transmission relay control located

2003 KIA OPTIMA
106,000 MILES
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JZIELINSKI
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  • 1 POST
Auto Zone diagnosed my check engine light as having an A/T Relay Control Issue. I have ordered the part from Kia, is this an easy at home repair? A/T remains in 3rd gear (fail safe) I know from reading and researching. I do not know where the relay control is located, although I have been told it's under the dash at the end of the heater box? Is this correct?
Nov 29, 2011 at 8:57 AM
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STRAILER
  • ✓Experienced Mechanic
  • 55,682 POSTS
Hello,

Yes this relay is easy to replace and test, here is a guide to show you how to test the relay which is located in the middle of the dash near the bellhousing hump.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

I would check the system fuses as well.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Here are some fuse panel and relay locations (below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Nov 20, 2017 at 3:25 AM
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2CP-ARCHIVES
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Relay - Electronic Aut Transmission how to replace and the location and the location please
Nov 20, 2017 at 3:25 AM (Merged)
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ASEMASTER6371
  • ✓Experienced Mechanic
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there is no relay for this system

Roy
Nov 20, 2017 at 3:25 AM (Merged)
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JRCRAWLEY
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car will only take 3rd gear and only 40 mph and that is what it shows. any other options?
Nov 20, 2017 at 3:25 AM (Merged)
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
have the system scanned for codes for internal trans repairs needed.

Roy
Nov 20, 2017 at 3:25 AM (Merged)
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