New ECU reprogramming

2004 KIA RIO
132,000 MILES • 1.6L • 4 CYL
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HEATH WOODS
  • MEMBER
  • 2 POSTS
If I buy a new or re-manufactured ECU can I reprogram it myself or does It have to go to dealer? Parts supplier said there is a procedure in repair manual, but I cannot find one. If so what steps do I follow?
May 19, 2018 at 6:33 AM
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JIS001
  • ✓Experienced Mechanic
  • 3,412 POSTS
It does not look like it requires any programming since fault trace for ECM indicates you can swap to another known good vehicle for testing. They may need to write the VIN number to it which would require a scan tool to complete that function. Attached image below for fault tracing ECM.
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May 20, 2018 at 11:52 AM
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HEATH WOODS
  • MEMBER
  • 2 POSTS
Thank you.
May 20, 2018 at 12:51 PM
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JIS001
  • ✓Experienced Mechanic
  • 3,412 POSTS
You are welcome and thank you for using 2carpros.
May 20, 2018 at 4:31 PM
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