Operation Section
-101-
Table 2. MI-07 Diagnostic Fault Codes (Flash Codes) cont’d.
DFC PROBABLE FAULT FAULT ACTION *
CORRECTIVE ACTION
FIRST CHECK
541
(54)
SysVoltRangeHigh
System voltage too high
TurnOnMil
Check battery and charging system
voltage
Check battery voltage during starting
and with the engine running
Check voltage regulator, alternator,
and charging system
Check battery and wiring for
overheating and damage
Measure battery power at SECM with a
multimeter (with key on)
SECM Pin A23 (DRVP) to
SECM Pin A16 (DRVG)
SECM Pin A23 (DRVP) to
SECM Pin B17 (DRVG)
551
(55)
SensVoltRangeLow
Sensor reference voltage
XDRP too low
(1) TurnOnMil
(2) EngineShutdown
Measure transducer power at the
TMAP connector with a multimeter
TMAP Pin 3 XDRP +5 Vdc to TMAP
Pin 1 XDRG GND
Verify transducer power at the SECM
with a multimeter
SECM Pin B24 +5 Vdc to SECM Pin
B1 XDRG GND
Verify transducer power at ETC with a
multimeter
ETC Pin 3 XDRP PWR to ETC Pin 2
XDRG GND
Verify transducer power to the foot
pedal with a multimeter.
561
(56)
SensVoltRangeHigh
Sensor reference voltage
XDRP too high
(1) TurnOnMil
(2) EngineShutdown
Measure transducer power at the
TMAP connector with a multimeter
TMAP Pin 3 XDRP +5 Vdc to TMAP
Pin 1 XDRG GND
Verify transducer power at the SECM
with a multimeter
SECM Pin B24 +5 Vdc to SECM Pin
B1 XDRG GND
Verify transducer power at ETC with a
multimeter
ETC Pin 3 XDRP PWR to ETC Pin 2
XDRG GND
Verify transducer power to the foot
pedal with a multimeter.
571
(57)
HardOverspeed
Engine speed has exceeded
the third level (3 of 3) of
overspeed protection
(1) TurnOnMil
(2) HardRevLimit
Usually associated with additional ETC
faults
Check for ETC Sticking or other ETC
faults
Verify if the lift truck was motored down
a steep grade
(*) Fault actions shown are default values specified by the OEM.
https://www.forkliftpdfmanuals.com/
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