The SA will tell you what module, SA: 0 is the engine.
P04 FMI 3 - Pre-turbine air pressure over range fault P04 FMI 4.Exit SrvcCodes SPN.n FMI.n Last SPN, FMI combination (n) Explanation of SPN & FMI Diagnostic Codes SPN refers to Suspect Parameter Number and FMI refers to Failure Mode Identifier.
User may exit the Service Code Display routine by pressing BOTH keys Simultaneously at any time. All of our guides look the same for every OEM, contain detailed testing steps, and easy to follow Yes or No directions.