12 = Bad Intelligent Device or Component.8 = Abnormal Frequency or Pulse Width or Period.7 = Mechanical System not Responding or Out of Adjustment.6 = Current Above Normal, or Grounded Circuit.5 = Current Below Normal, or Open Circuit.4 = Voltage Below Normal, or Shorted to High Source.3 = Voltage Above Normal, or Shorted to High Source.2 = Data Erratic, Intermittent or Incorrect (rationality).1 = Data Valid but Below Normal Operational Range, Most Severe Level.0 = Data Valid but Above Normal Operational Range, Most Severe Level.So here is the list of possible FMI values:
Pid codes list code#
This code is set by the ECM detecting a variety of problems, such as too much voltage, not enough voltage, resistance is in correct, and so on. Every diagnostic trouble code (DTC) that you find will have a FMI. Now that we have defined MID (The component) and PID (types of data), we can talk about Failure Mode Identifiers (FMI). The entire PID list can be downloaded by filling out the form at the top of the page. PID is a J1708 term and PIDs go from 0 to 511. So think if PIDs in terms of “readings” such as oil temperature, coolant level, miles driven, engine RPMs, and so on. Parameters Identifiers, or PIDs, are numbers and names used to identify data being displayed. Please use the link at the top of this page to receive them. We have also compiled a list of all MIDs that are created. There are hundreds of MIDs that are defined, but only a handful are commonly used. Each component on a truck (Engine, transmission, ABS, etc…) all have a MID that is used. The MID tells which system it is coming from.
Pid codes list software#
If you have ever used some diagnostic software or a generic code reader, these acronyms will look familiar. This is where we first saw this new system. The fuel bleeding pump is used when the fuel system has to be bled.Now that a standard had been set for both the physical connections and the software language, the manufacturers need a logical way to read and display this data. The out- put signal is linear within the sensors working range. The output signal from the pressure sensor, pin 2 on the sensor to pin 16 on the EMS2, is a voltage signal that is proportional to the fuel pressure. Pin 4 on the sen- sor is connected to battery negative via pin 18 on the EMS2. Pin 17 on the engine control unit (EMS2) connector B provides pin 1 on the sensor with an operating voltage of +5 Volt. the sensor must receive operating voltage. For parameters, see Administration page 7.ģ Check the fuel hoses to ensure that none have been crushed or kinked.Ĥ Change the fuel filters (primary and secondary filter).Ħ Check the overflow valve and change it if necessary. Fuel pressure depends on engine revolution speed.įuel pressure is lower than the value specified in the engine protection parameter. An orange lamp flashes in the alarm display.įuel pressure is too low.Warning is displayed in the tachometer/display.Short circuited sensor signal cable to battery negative.Ģ Check the contact pressure in socket 16 and 17 in the engine connector B.įMI 7 – Mechanical system not responding properly.Open circuit in fuel sensor signal cable.Open circuit in fuel sensor 5V supply cable.The voltage on pin B16 on the EMS2 is less than 0.07 Volt. Short circuited fuel sensor signal cable to 5V voltage or to battery volt- age.ġ Check the cable harness between the fuel sensor and EMS2.Ģ Check the contact pressure in socket 18 in the engine connector B.įMI 5 – Current below normal or open circuit.Open circuit in the sensors negative cable.The voltage on pin B16 on the EMS2 is more than 4,77 Volt. (see workshop manual)Ħ Remove and clean the pressure release valve in the fuel feed pump.įMI 3 – Voltage above normal or shorted high (pre- and fine filter)Ĥ Check that no fuel hose is squeezed or folded.ĥ Check the fuel sensor by control measuring the fuel pressure. The fuel pressure alarm depends on the engine revolution.Ģ Open all fuel cocks and check that no leakage occurs.ģ Change all fuel filters. FMI 1 – Data valid but below operational rangeĭCU: Engine warning in DCU display CIU: Flash code
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