Hey all. Got a 01 odyssey with a p01607 code pcm internal malfunction. I’ve tried a bunch of things I’ve read and search. Resetting the battery, cleaning the terminals, pulling fuses, unplugging the computer. Can’t get rid of the code. Van drives ok. Idle is rough and has hard starts when it’s hot out ( which I think is a separate issue ). Any other tricks beside getting a new or used pcm.? Thanks for any help in advance.

 

If the car battery is okay and resetting the PCM doesn't resolve the P1607 trouble code, it will usually be due to a faulty PCM.

You can remove the PCM and open it up to see if there are blown/leaking capacitors or burnt resistor; which can many times be replaced and fixed.

If you needed a replacement PCM, used is a lot less expensive. A replacement PCM will need to be reprogrammed due to the Immobilizer System.

However, to save on costs, you can also buy an Immobilizer Emulator board via ebay or around $20; and do a little soldering in the replacement used PCM. This would negate the Immobilizer and would not require reprogramming.

 

someone said if I get a used Ecu with the same year and very close to my Vin.. I might not need to reprogram it. This true ?

 

Not true. The Immobilizer System requires the matching keys.

See this service bulletin regarding the 1998 Accord Immobilizer System, which is the same as your 2001.

A97-058

 

so if I get a key coder or a locksmith to code the key would that work ? Or do I need to get a scan tool that re writes my vin ?