Question

2001 Ford F250 7.3L with engine codes P1209, P0603 & P1211 where do I find how to fix these codes?

Answer 1

Hi there,

P1211 indicates an issue with the injector control pressure sensor. Here is a list of possible causes.

P1211 FORD - Injector Control Pressure Sensor Above / Below Desired
Read more: https://www.autocodes.com/p1211_ford.html

P1209 indicates an issue with the injector control pressure system. Here is a list of possible causes.

P1209 FORD - Injector Control Pressure System Fault
Read more: https://www.autocodes.com/p1209_ford.html

P0603 indicates an issue with the battery or ECM. Here is a list of possible causes.

P0603 FORD - ECM Keep Alive Memory Test Error
Read more: https://www.autocodes.com/p0603_ford.html