PCM replacement instructions please?

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Hi,

As far as getting one from a used vehicle, it has to be the exact same part number. Also, which specific computer are you referring to? If it is the ECM (engine control module) take a look at the pic below. I attached parts and labor. Note that the part price is retail from a dealer, so the prices are extremely high. However, labor shows.5 hour (30 minutes).

Let me know if this helps or if you have other questions.

Take care,
Joe
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
DEETRIMBLE
  • MEMBER
  • 3 POSTS
Thank you. I need to find out if it is the ECM. Those parts are very high. I would definately want to try to get it from used vehicle.
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
You are very welcome. If it is the ECM, check online. There are places that sell them for much less than a dealership. Just make sure that if you do get one online, you have a guarantee. There are some parts that are not worth buying.

Please feel free to let me know if you need help or have other questions. I'll be here.

Take care,
Joe
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
DEETRIMBLE
  • MEMBER
  • 3 POSTS
Thank you for your assistance with this Joe. And I will let you know if I have any more questions as well.
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,262 POSTS
Happy to help.

Take care,
Joe
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
LONDOG
  • MEMBER
  • 1 POST
  • 1997 HONDA ACCORD
  • 2.2L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 18,000 MILES
What numbers on the ECU have to match to work?
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,938 POSTS
The basic part number is the most important one, you may need to contact the dealer spare parts as factory up grades may alter that part number. The parts department should be able to supply suitable reference number that will work. But if you get a second hand unit, you still may have to get it re flashed, but regardless it still should work to get you mobile.
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Tuesday, May 11th, 2021 AT 6:33 PM (Merged)
Tiny
MARKMUNDY
  • MEMBER
  • 1 POST
  • 1997 HONDA ACCORD
  • 160,000 MILES
Is the PCM and ECU the same thing?Where is the PCM located on 1997 Honda accord?Code P0715 comes up. Mainshaft speed sensor checks out ok(400-600 ohms). Next step is check connector at PCM. Transmission shifts hard or irraticly after it warms up.
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Tuesday, May 11th, 2021 AT 6:34 PM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
DTC P0715 (FLASH CODE 15) doesn't always mean an electrical problem in mainshaft speed sensor or circuit; this DTC can also be caused by a mechanical problem in transaxle. Ecm, ecu and pcm are all about the same see pic for location
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Tuesday, May 11th, 2021 AT 6:34 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

No to used. You have about a 50% chance of having it programmed. If it does not take, you would be out all that money.

You need to get the number off the old ECM. Go to rockauto. Com and look on their site. They offer the ECM based on the number and it is already programmed to run.

Roy
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Wednesday, May 12th, 2021 AT 5:25 AM

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