[OrganicMechanic]

Does anyone know if the electronic brain control part numbers have to match?
I have
1K000-PHM-050
And can only find:
LKQ has: 1K000- PHM-904

Will that work? please help!!

 

[retepsnikrep]

Why do you need one?

Yes they should probably match.

You will need one from a manual or cvt depending on type and year.

Region will also make a difference.

 

[OrganicMechanic]

Diagnosis from Honda dealer.I have a two yr old 8A battery and an IMA light. Electric motor not working. ( It's a manual) So how does one know what number will work?

 

[Gasoline Fumes]

I'd get a second opinion before replacing the MCM, unless it has obvious damage like from a flood, fire, or lightning strike.

I have a few MCMs that I'd sell, but you probably don't need one.

 

[Gasoline Fumes]

This is one of my favorite things posted here about Honda dealers!

What the Honda dealer isn't telling you is they hate this car, they hate you for owning it, and have zero knowledge on how to repair it, other than just replacing everything until it works again. The very first step is to retrieve your car from Honda and never bring it back again ever for any reason. You need to find someone who has experience with this car (hint: it's not Honda).

 

[Bull Dog]

It's not your MCM. Replacing it is extremely unlikely to fix your problem. That being said, just about any MCM will work in any Insight.

You should provide more detail about what problem is as well as list whatever codes your car has.

 

[Gasoline Fumes]

MCM

Thanks, I didn't catch that those are MCM numbers!

 

[OrganicMechanic]

Ok thanks both you guys...I have another post of the codes I pulled how do I reference that to show you?
Also I'm already into them for $120.00 & have located a local ECM for 85.00. They told me they had a 20 yr & a 10 yr mechanic that"knew" them So ...You don't think it's worth a try?? Know of anyone in the Kansas area that really knows the gen 1??

 

[Gasoline Fumes]

I edited my post, I didn't realize those were MCM, not ECM part numbers.

 

[OrganicMechanic]

So Ive heard BOTH .....the MCM numbers matter & the numbers don't matter...Which is it??
What's a guy to do I acty love this car & it would really benefit from having the IMA working... Especially with the new battery.!
Should I risk the dealers diagnosis ???

 

[OrganicMechanic]

These were the codes I got when I first purchased it. I have the shop manual but not the time to master it!
P1644 (MOTFSA)
P1576 (MDM))
P1568 (BATT MODULE)
P1449 (BATT MODULE Overheat?)

 

[Gasoline Fumes]

I don't think the MCM numbers need to match. I put a 5-spd MCM in a CVT Insight and it worked fine. Hopefully someone can help diagnose it. I gave up on chasing IMA problems.

 

[mudder]

FYI: The dealer is telling you to replace the MCM due to the P1644 code... because the service manual says a broken MCM will cause P1644. However, as others have stated above, it's almost certainly not the MCM that's actually broken.

You need to blink out your sub-codes to get more info... several of the P-codes you listed have multiple root causes. To blink out, you need to do one of the following:
-use the Honda OBDII tool, or;
-ground the SCS pin on your OBDII connector, or;
-use @retepsnikrep's OBDIIC&C tool.

Doing the above will cause your IMA light to blink specific codes... which will give us more info on what's going wrong in IMA-land. Based on the P-codes you provided, I would guess your pack is really unbalanced, and also you have corrosion on the two connectors between the seats (behind the middle mat, which connect the floor wire harness to the IMA wire harness). It could also be bad ground straps. But it (almost certainly) isn't the MCM, the BCM, or the ECM. Those things just don't break. Honda loves to replace them, though.

 

[retepsnikrep]

These were the codes I got when I first purchased it. I have the shop manual but not the time to master it!
P1644 (MOTFSA)
P1576 (MDM))
P1568 (BATT MODULE)
P1449 (BATT MODULE Overheat?)

OK Now we are getting somewhere.

As has been stated you probably don't need to replace a computer module.
It's certainly an IMA battery problem and a connections issue.

In your original post (without codes etc) I thought you were talking about the ECM which controls the engine.
Now I see you meant the MCM which controls the electric motor.

With the MCM (If you did need to replace it, which you don't) then you could use any MCM.
With the ECM (if you did need to replace it , which you don't) then the year and cvt/manual etc matters.

 

[Rainsux]

Please go back to the beginning. What symptoms are you trying to fix?—Sam

 

[OrganicMechanic]

This beloved 01 Insight has 154,000 miles and a 2 yr old 8A bumblebee battery that is off warranty. The PO ran it for a yr with no issues & until it developed an IMA light.It then sat for a while and I was instructed to replace the ECM which did nothing. After that I got the above mention codes & now have it at a local Honda dealership that diagnosed it as a bad MCM . I found one and will see what happens. After all your help with these posts, I don't have much faith that will fix it. I do appreciate the suggestions for checking the wiring, that's something I can do Also I will try & get the dealer to use their system to get to the "root causes" from the sub codes as my scanner is somewhat limited. Please stay with me!!
Appreciate all the help/suggestions!

 

[OrganicMechanic]

Oh and another thing about it.. A " little voice" has been telling me to grid charge the battery in case maybe because it sat so long it is asleep or something. Mudder mentioned the battery could have become unbalanced...? Haven't purchased a grid charger ..yet.
But the IMA light came on for the PO before it was parked......

 

[Calpod]

Another thing that may help you is posting your location, help may be just around the corner if we know where you are.

Where is @Willie Williford when you need him.

 

[OrganicMechanic]

I'm located in Emporia Ks a town of 30,000
The only Insight in town, we've got Kansas City to the North and Wichita to the South.
The car is at the dealership in Lawrence, Monday we'll see if the MCM makes any difference. Thanks for all your help!

 

[Drtye]

Agree to install the MCM on the condition that in the event this does not fix that they will be liable for all subsequent repairs if it doesn't fix it the first time. I'd bet you would get a better diagnosis for your initial money spent. As much as I would like to load a parts cannon, these are really simple cars in this day and age. A quality diag from a dealership is unfortunately far and few between for these vehicles. They have to know that you aren't going to play part roulette and be back every other week to try and have them "fix" it. Like others have mentioned, MCM are very robust and short of an outside influence it's very unlikely that's the root cause.