Notices
6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Code Interpretation

Thread Tools
 
Search this Thread
 
Old Nov 8, 2004 | 10:10 PM
  #1  
hopperbb's Avatar
hopperbb
Thread Starter
|
New User
Joined: Nov 2004
Posts: 2
Likes: 0
Question Code Interpretation

what does a po603 code mean?
 
Reply
Old Nov 8, 2004 | 11:55 PM
  #2  
SBV45's Avatar
SBV45
Postmaster
Joined: Aug 2003
Posts: 4,483
Likes: 2
From: Central Texas
P0603 Powertrain Control Module Keep Alive Memory (KAM) Error
The PCM stores information in Keep Alive RAM (a memory integrated circuit chip) about vehicle operating conditions, and then uses this information to compensate for component variability. Keep Alive RAM remains powered when the vehicle key is off so that this information is not lost.

You can get this error if the battery has been disconnected for more than 5 minutes.
How did you detect the error?
 
Reply
Old Nov 9, 2004 | 06:26 AM
  #3  
IB Tim's Avatar
IB Tim
FTE Leadership Emeritus
20 Year Member
Veteran: Air Force
Joined: Jan 2003
Posts: 161,999
Likes: 75
From: 3rd Rock
Club FTE Gold Member
Originally Posted by hopperbb
what does a po603 code mean?
WELCOME to the site, please read the Guidelines… Check out the list of forums and make sure you read the headings and Read First: notices in each forum.

Be sure to check out the 6.0 Bible…..great reading
http://dan.prxy.org/Truck/6L_bible_html/html/TOC.html
http://www.backglass.org/duncan/ps60_manual/

…. In the upper right hand corner of your screen check this out PARTS SHOP for all your “trucking” needs

Must read
http://www.clubfte.com/users/monsta/SuperDutyFAQ.html
Enjoy FTE
 
Reply




All times are GMT -5. The time now is 03:10 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE