H1C1 and H1C2 Vertical Sub-Boards

7rrivera7

#1 22 Jun 2020, 11:22 ◈ 2021-05-18

Has anyone been able to troublehoot these and fix them? I have a good collection of bad boards with ignition codes and would like to repair them.

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7rrivera7

#2 24 Jun 2020, 07:51 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

18 views and no response? What happened to the great contributors that were on this forum?

majdi

#3 25 Jun 2020, 01:22 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

Simply connect all supply and ground pinout.. Inject 5-12v pwm signal to pin ckp, cyp and tdc. Then just test with oscilloscope the output signal. Common problem is the ic problem or any short or open circuit.

viewtopic.php?t=23592

bmgjet

#4 25 Jul 2020, 20:58 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

Theres a aftermarket board you can replace it with that Honda Rulez made.

7rrivera7

#5 26 Jul 2020, 07:00 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

bmgjet wrote:

Theres a aftermarket board you can replace it with that Honda Rulez made.

Are you sure it replaces H1C1 & H1C2?

I know there is a Coil on Plug board which I sell and it looks similar but I have not seen a product that replaces these boards.

shiftyjonno

#6 07 Oct 2020, 22:17 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

I hope these help

projectteg

#7 18 Oct 2020, 23:46 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

Would these boards throw a icm signal loss code?

shiftyjonno

#8 21 Oct 2020, 17:45 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

projectteg wrote:

Would these boards throw a icm signal loss code?

Most definitely will be part of it.

crisaguilar

#9 06 Mar 2021, 04:17 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

I repair a lot of them major times the problem are the op amp but I find some problems with caps too.

The right way to test is with a oscilloscope

7rrivera7

#10 06 Mar 2021, 08:59 ◈ 2021-05-18

Re: H1C1 and H1C2 Vertical Sub-Boards

How would a person just starting with an oscilloscope troubleshoot these boards?