• MID (“Message Identification Description”):
The MID consists of a number which designates the control unit that sent the fault code message.
(e.g. the engine control unit).
• PID (“Parameter Identification Description”):
The PID consists of a number that designates a parameter (value) to which the fault code relates
(oil pressure, for example).
• PPID (“Proprietary PID”):
The same as the PID, but this is a Volvo-specific parameter.
• SID (“Subsystem Identification Description”):
The SID consists of a number that designates a component to which the fault code relates (tachometer, for example).
• PSID (“Proprietary SID”):
The same as the SID, but this is a Volvo-specific component.
• FMI (“Failure Mode Identifier”):
FMI indicates the type of fault (please refer to the FMI table below).
• SPN
Suspect Parameter Number
FMI table
SAE standard
| FMI | Display text | SAE text |
| 0 | “Value too high” | Data valid but above normal operational range. |
| 1 | “Value too low” | Data valid but below operational range. |
| 2 | “Faulty data” | Data erratic, intermittent or incorrect |
| 3 | “Electrical fault” | Voltage above normal or shorted high. |
| 4 | “Electrical fault” | Voltage below normal or shorted to lower voltage. |
| 5 | “Electrical fault” | Current below normal or open circuit. |
| 6 | “Electrical fault” | Current above normal or short circuit to battery negative |
| 7 | “Mechanical fault” | Mechanical system not responding properly |
| 8 | “Mechanical or electrical fault” | Abnormal frequency, pulse width or period |
| 9 | “Communication fault” | Abnormal update rate |
| 10 | “Mechanical or electrical fault” | Abnormally large variations |
| 11 | “Unknown fault” | Unidentifiable error. |
| 12 | “Component fault” | Faulty device or component |
| 13 | “Faulty calibration” | Calibration value out of range. |
| 14 | “Unknown fault” | Special instructions |
| 15 | - | Data valid but above normal, too high - least severe level. |
| 16 | - | Data valid but above normal, too high - moderately severe level. |
| 17 | - | Data valid but below normal, too low - least severe level. |
| 18 | - | Data valid but below normal, too low - moderately severe level. |
| 19 | - | Received network data in error. |
| 20-30 | - | Reserved for SAE assignment. |
| 31 | - | Condition exist. |
