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Engine Harness Differences between 04 and 06?

 
Old 06-10-2019, 05:54 AM
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Engine Harness Differences between 04 and 06?

Does anyone know the differences in the engine harness between 04 and 06? I've been searching for the harness connector diagrams / pinouts. I recently swapped a 2006 TL m/t engine and engine harness into my 04 Accord v6 m/t and used the TL engine harness, thinking they were the same. I now have a permanent DTC for a/f sensor heater B2S1 and I've learned that they are different harnesses (I wanted to switch ECUs too, but 06 is not compatible with 04). I'm hoping it's a matter of moving a couple pins in the harness connector in the engine bay to have the 06 engine harness mate to the 04 ECU harness.

Thank you in advance
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Old 06-10-2019, 06:35 AM
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2006 TL m/t engine harness; 32110-RDA-A01:

https://www.acuraoemparts.com/auto-p...e-harness-scat

2004 Accord V6 m/t engine harness; 32110-RCA-A01:

https://www.hondaautomotiveparts.com...ire-harness-v6

Here is an over simplified paraphrased deciphering of the Acura/Honda part #:

32110-RDA-A01

The prefix number '32110' in the part # for Acura/Honda relates to the parts description; Engine Wire Harness. Therefore, every Engine Wire Harness for every Honda and Acura vehicle carries this prefix as the part number.

The root 'RDA' tells what kind of car it fits, in this case the manual transmission Acura.

The suffix 'A01' tells detail about the part itself.

Since the 'prefix and the suffix' are the same for both Acura and Honda Engine Wire Harness part numbers, it's reasonable to assume that they should work?

https://ultraracing-usa.com/blog/dec...-part-numbers/

Maybe the issue is more ECU related?
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