P-0605

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Mar 23, 2012 | 06:23 PM

MX_Fyrcaptain

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Senior User

Joined: Feb 2009

Posts: 405

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From: Vacaville, Ca.

P-0605

After a new UVCH my truck runs great. Plenty of power, a smooth idle, and no CEL.

I do have a P-0605 PCM ROM failure code stored.

Does this mean that my PCM is going south? Or will I be ok? I wouldn't mind upgrading my PCM, but I want to do it when I'M ready, not when the truck decides to reach in to my wallet.

Mar 23, 2012 | 08:32 PM

woodnthings

Cargo Master

Joined: May 2010

Posts: 3,047

Likes: 9

From: Snohomish, WA

Clear it and see if it comes back. If it doesn't effect the running, I would ignore it........until you can't!

Mar 23, 2012 | 10:02 PM

Mr. Finch

Elder User

Joined: Nov 2004

Posts: 684

Likes: 1

My truck has the same thing. Fords diag on it is to erase the code, run a KOEO self test, if code returns replace pcm. you could try getting yours reflashed. that is what I am going to do when I get the time. Other wise I do not know of any drivability issues but then mine poped up 2-3 months after I bought the truck. But now I am getting an IDM comunication code dont know if the 2 are related. If u start getting any IDM codes let me know.

Mar 23, 2012 | 10:41 PM

MX_Fyrcaptain

Thread Starter

Senior User

Joined: Feb 2009

Posts: 405

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From: Vacaville, Ca.

I had an IDM code until I replaced the UVCH.

Mar 24, 2012 | 01:00 AM

4inchlovin

Lead Driver

Joined: Nov 2007

Posts: 5,578

Likes: 1

i thought i 605 code was one mentioned as "common" with a tuner... could be wrong its happed once or twice before haha

Mar 24, 2012 | 01:07 AM

4inchlovin

Lead Driver

Joined: Nov 2007

Posts: 5,578

Likes: 1

just did some searching and yes a P0605 is common with a tuner and NOT an issue. it will also come up after disconnecting batteries, changing fuses. I assume you disconnected the batteries when doing the UVHC. in any case clear it and you should be fine