I have a 2000 F-350 that is throwing this code. I was wondering if this would affect the way a transmission is shifting. It seems like the torque convertor is not disengaging. It feels like a standard transmission. Any help?

 

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P0603

P0603 - Internal Control Module Keep Alive Memory Error

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</td> </tr> </tbody></table> Possible causes
- Loose or poor battery terminal connection
- Low battery charge
- ECM/PCM power supply circuit is open or shorted
- ECM/PCM Programing
- Faulty ECM/PCM


Tech notes
Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. If the code comes back ON you may have to reprogram or replaced ECM/PCM

Read more: OBD2 - OBDII Code P0603 - Internal Control Module Keep Alive Memory Error | Engine-Codes.com


Hope this helps!!

 

Would this affect the transmission?

 

Im really not a Trans guy but I've seen loose battery connections and bad batteries play havoc on all types of systems. So I would have to say it is entirely possible that the trans could be affected, It is after all controlled by the PCM. How much is controlled by it im unsure but I know things like shift points and line pressure are controlled my it. and an intermittent loss of power to the PCM could cause it to go into limp mode but I would assume other systems would be affected as well.

Sorry I couldn't be of more help.

 

I know in the 7.3 world the P0603 is common if there is a chip installed, or if there has been a modified tune loaded onto the PCM.

What motor is this?