Magnum MMG75CAN6, Operating Manual

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the unit. To resume operation, the fault condition must be resolved and the code cleared from the display.
Diagnostic messages are read and displayed in the “ECU Alarm List.” The Suspect Parameter Number (SPN)*,
Failure Mode Identifier (FMI) and Occurrence Counter (OC) are shown together with a description (if possible). One
SPN*/FMI describes one failure. If FMI is equal to zero or one, “WRN” is displayed in the “ECU Alarm List.” For any
other FMI value, “Fls” is displayed. Detailed SPN*/FMI information may be found in the SAE HS-1939 Publication,
or refer to the engine manufacturer’s ECU error codes list. The following table displays the ECU messages and their
descriptions.
*Note: The Suspect Parameter Number (SPN) is displayed as “FC” on the bottom left of the LCD window. See Figure 1.
MAGNUM DIGITAL CONTROLLER (MDC) - HISTORY
The MDC stores a record of each important event in the history file of the controller. The history file seats 117 records.
When the history file is full, the oldest records are removed.
No. SPN Description
1 SPN:100 EngOil Press
2 SPN:102 Boost Press
3 SPN:105 Intake Temp
4 SPN:110 EngCool Temp
5 SPN:175 EngOil Temp
6 SPN:629 Controller #1
7 SPN:636 PositionSensor
8 SPN:637 TimingSensor
9 SPN:651 InjectorCyl#1
10 SPN:652 InjectorCyl#2
11 SPN:653 InjectorCyl#3
12 SPN:654 InjectorCyl#4
13 SPN:655 InjectorCyl#5
14 SPN:656 InjectorCyl#6
15 SPN:677 EngStartRelay
16 SPN:1485 ECU MainRelay
17 SPN:3719.15 High soot load caution
18 SPN:3719.16 Very high soot load warning
19 SPN:3719.00 Very high soot load - needs service
No.
Record Structure
Abbreviation
Historical Value
1 AIM1 IG-IOM, IGS-PTM analog input 1 value (when configured IG-IOM, IGS-PTM)
2 Date Date of historical event in format DD/MM/YY
3 OilP IL-NT analog input 1 value (default: oil pressure)
4 FC ECU alarm FailureCode
Figure 1