User Manual
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TYPE SPN FMI
En-
gine
Ma-
chine
type
Description
MCU 505 1 * E Working Brake Pressure (Foot Ped-
al)-Data Valid But Below Normal Op-
erational Range
MCU 505 1 * L Working Brake Pressure (Foot Ped-
al)-Data Valid But Below Normal Op-
erational Range
MCU 505 4 * E Working Brake Pressure (Foot Ped-
al)-Voltage Below Normal, Or Shor-
ted To Low Source
MCU 505 4 * L Working Brake Pressure (Foot Ped-
al)-Voltage Below Normal, Or Shor-
ted To Low Source
MCU 505 2 * E Working Brake Pressure (Foot Ped-
al)-Data Erratic, Intermittent Or Incor-
rect
MCU 505 2 * L Working Brake Pressure (Foot Ped-
al)-Data Erratic, Intermittent Or Incor-
rect
ECM 5055 18 P E Engine Oil Viscosity : Low - moder-
ate severity (2)
ECM 5055 18 P L Engine Oil Viscosity : Low - moder-
ate severity (2)
ECM 5055 17 P E Engine Oil Viscosity : Low - least se-
vere (1)
ECM 5055 17 P L Engine Oil Viscosity : Low - least se-
vere (1)
MCU 506 3 * E Working Brake Status ? Indicator
Lamp-Voltage Above Normal, Or
Shorted To High Source
MCU 506 3 * L Working Brake Status ? Indicator
Lamp-Voltage Above Normal, Or
Shorted To High Source
MCU 506 4 * E Working Brake Status ? Indicator
Lamp-Voltage Below Normal, Or
Shorted To Low Source
MCU 506 4 * L Working Brake Status ? Indicator
Lamp-Voltage Below Normal, Or
Shorted To Low Source
MCU 507 0 * E Parking Oil Pressure-Data Valid But
Above Normal Operational Range
MCU 507 0 * L Parking Oil Pressure-Data Valid But
Above Normal Operational Range
MCU 507 1 * E Parking Oil Pressure-Data Valid But
Below Normal Operational Range
MCU 507 1 * L Parking Oil Pressure-Data Valid But
Below Normal Operational Range
MCU 507 4 * E Parking Oil Pressure-Voltage Below
Normal, Or Shorted To Low Source
MCU 507 4 * L Parking Oil Pressure-Voltage Below
Normal, Or Shorted To Low Source
MCU 507 0 * F Parking Oil Pressure Sensor Data
Above Normal Range (or Open Cir-
cuit)
MCU 507 1 * F Parking Oil Pressure Sensor Data
Below Normal Range
MCU 507 2 * E Parking Oil Pressure-Data Erratic, In-
termittent Or Incorrect
MCU 507 2 * F Parking Oil Pressure Sensor Data
Error
MCU 507 2 * L Parking Oil Pressure-Data Erratic, In-
termittent Or Incorrect
MCU 507 4 * F Parking Oil Pressure Sensor Circuit -
Voltage Below Normal, or Shorted to
Low Source
MCU 5090 3 * L S.C. TO BATTERY VOLTAGE AT
CLUTCH CUTOFF / INCHPEDAL
INPUT - the measured voltage is too
high
MCU 5090 4 * L S.C. TO GROUND OR O.C. AT
CLUTCH CUTOFF / INCHPEDAL
INPUT - the measured voltage is too
low
continued..........
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TYPE SPN FMI
En-
gine
Ma-
chine
type
Description
ECM 5097 3 C F Engine Brake Active Lamp - Voltage
Above Normal, or Shorted to High
Source
ECM 5097 4 C F Engine Brake Active Lamp - Voltage
below normal, or shorted to low
source
ECM 5097 3 C E Engine Brake Active Lamp - Voltage
Above Normal, or Shorted to High
Source
ECM 5097 3 C L Engine Brake Active Lamp - Voltage
Above Normal, or Shorted to High
Source
ECM 5097 4 C E Engine Brake Active Lamp - Voltage
below normal, or shorted to low
source
ECM 5097 4 C L Engine Brake Active Lamp - Voltage
below normal, or shorted to low
source
ECM 5099 5 P E Engine Oil Pressure Low Lamp Data
- Current Below Normal
ECM 5099 5 P L Engine Oil Pressure Low Lamp Data
- Current Below Normal
ECM 5099 6 P E Engine Oil Pressure Low Lamp Data
- Current Above Normal
ECM 5099 6 P L Engine Oil Pressure Low Lamp Data
- Current Above Normal
ECM 51 2 C E Engine Intake Throttle Actuator Posi-
tion Sensor - Data Erratic, Intermit-
tent, or Incorrect
ECM 51 2 C L Engine Intake Throttle Actuator Posi-
tion Sensor - Data Erratic, Intermit-
tent, or Incorrect
ECM 51 3 C E Engine Intake Throttle Actuator Posi-
tion Sensor Circuit- Voltage above
normal, or shorted to high source
ECM 51 3 C L Engine Intake Throttle Actuator Posi-
tion Sensor Circuit- Voltage above
normal, or shorted to high source
ECM 51 3 P E Engine Throttle Valve 1 Position :
Voltage Above Normal
ECM 51 3 P L Engine Throttle Valve 1 Position :
Voltage Above Normal
ECM 51 3 S E Throttle Position Sensor 1, short cir-
cuit to +24
ECM 51 3 S L Throttle Position Sensor 1, short cir-
cuit to +24
ECM 51 3 Y E Intake throttle position sensor error
(voltage high)
ECM 51 3 Y L Intake throttle position sensor error
(voltage high)
ECM 51 4 C E Engine Intake Throttle Actuator Posi-
tion Sensor Circuit- Voltage above
normal, or shorted to low source
ECM 51 4 C L Engine Intake Throttle Actuator Posi-
tion Sensor Circuit- Voltage above
normal, or shorted to low source
ECM 51 4 P E Engine Throttle Valve 1 Position :
Voltage Below Normal
ECM 51 4 P L Engine Throttle Valve 1 Position :
Voltage Below Normal
ECM 51 4 S E Throttle Position Sensor 1, short cir-
cuit to ground
ECM 51 4 S L Throttle Position Sensor 1, short cir-
cuit to ground
ECM 51 4 Y E Intake throttle position sensor error
(voltage low)
ECM 51 4 Y L Intake throttle position sensor error
(voltage low)
TCU 51 * * E Boom priority solenoid circuit is open
or shorted to ground
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6 SPN 5~










