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No MIL signal on E31 in '05 Accord ECU?

Posted: Fri Feb 21, 2020 12:46 am
by husseinholland
I wired the MIL in my cluster to E31, following general wiring diagrams. It doesn't illuminate when I get a code.

E31 is shown as vacant in the Accord schematic

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Any suggestions? Someone on K20org said it may be that the MIL is handled via CANbus to the cluster, not the same as RSX.

If that is the case, I may have to get an RSX ECU & swap over the end user board. I need to know the MIL will illuminate when I have a code - I've already had several instances where the car ran erratically/jerky after a idle related code was set.

Any advise?

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Fri Feb 21, 2020 1:14 pm
by husseinholland
Found a 37820-PND-A63 - which will work with KTuner according to the list (https://ktuner.com/rsx/)

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This way I could also get back reverse lockout which I don't have with the Accord ECU.

Do you sell just the header board connectors so I can fit them to the motherboard? I've solder zif sockets to Volvo ECU's in the past, these look easier to solder than that

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Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Fri Feb 21, 2020 7:30 pm
by KTuner
Accord does not use E31 for MIL.

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Sat Feb 22, 2020 12:15 am
by husseinholland
KTuner wrote:Accord does not use E31 for MIL.
I have discovered that. The question is, is it handled by another ECU pin?

If the answer is no, can I buy the header board sockets from you so I can transfer my user board to the '05 RSX ECU? If the answer is yes, can you link me to the product?

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Sat Feb 22, 2020 8:07 pm
by KTuner
Dealers sell prepped ECUs if you need one. You'll need to unlock your unit prior.

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Sun Feb 23, 2020 3:09 am
by husseinholland
KTuner wrote:Dealers sell prepped ECUs if you need one. You'll need to unlock your unit prior.
I don't need a prepped ECU, just the sockets so I can transfer my board.

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Tue Feb 25, 2020 2:42 am
by husseinholland
Just to close this Xenocron will socket the RSX ECU for me.

Re: No MIL signal on E31 in '05 Accord ECU?

Posted: Tue Feb 25, 2020 12:15 pm
by KTuner
That also works!