User Manual
4 SPN 3~
TYPE SPN FMI
En-
gine
Ma-
chine
type
Description
TCU 3 * * E Short circuit in pump EPPR valve
system
MCU 301 3 * E Fuel Level -Voltage Above Normal,
Or Shorted To High Source
MCU 301 3 * L Fuel Level -Voltage Above Normal,
Or Shorted To High Source
MCU 301 4 * E Fuel Level -Voltage Below Normal,
Or Shorted To Low Source
MCU 301 4 * L Fuel Level -Voltage Below Normal,
Or Shorted To Low Source
MCU 301 3 * F Fuel Level Sensor Circuit - Voltage
Above Normal, or Shorted to High
Source (or Open Circuit)
MCU 301 4 * F Fuel Level Sensor Circuit - Voltage
Below Normal, or Shorted to Low
Source
Warning 303 * * E (Warning) Fuel level low
Warning 303 * * L (Warning) Fuel level low
Warning 303 * * F (Warning) Fuel level low
ECM 3031 11 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature - Root Cause
Not Known
ECM 3031 13 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Out
of Calibration
ECM 3031 2 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature - Data erratic,
intermittent or incorrect
ECM 3031 3 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
age above normal, or shorted to
high source
ECM 3031 4 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
age below normal, or shorted to low
source
ECM 3031 5 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current below normal or open cir-
cuit
ECM 3031 6 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current above normal or grounded
circuit
ECM 3031 9 C F Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature - Abnormal
Update Rate
ECM 3031 0 S E SCR main unit, high temperature
low limit exceedence
ECM 3031 0 S L SCR main unit, high temperature
low limit exceedence
ECM 3031 12 P E Aftertreatment #1 DEF Tant Tem-
perature - Failure
ECM 3031 12 P L Aftertreatment #1 DEF Tant Tem-
perature - Failure
ECM 3031 16 P E Aftertreatment #1 DEF Tant Tem-
perature : High - moderate severity
(2)
ECM 3031 16 P L Aftertreatment #1 DEF Tant Tem-
perature : High - moderate severity
(2)
ECM 3031 18 P E Aftertreatment #1 DEF Tant Tem-
perature : Low - moderate severity
(2)
ECM 3031 18 P L Aftertreatment #1 DEF Tant Tem-
perature : Low - moderate severity
(2)
ECM 3031 3 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
continued..........
...........continued
TYPE SPN FMI
En-
gine
Ma-
chine
type
Description
age above normal, or shorted to
high source
ECM 3031 3 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
age above normal, or shorted to
high source
ECM 3031 3 S E Fault in the reductant tank tempera-
ture sensor.
ECM 3031 3 S L Fault in the reductant tank tempera-
ture sensor.
ECM 3031 4 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
age below normal, or shorted to low
source
ECM 3031 4 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Volt-
age below normal, or shorted to low
source
ECM 3031 4 S E The EEC control unit indicates a
short circuit to ground for the pins
connected to the reductant tank
temperature sensor.
ECM 3031 4 S L The EEC control unit indicates a
short circuit to ground for the pins
connected to the reductant tank
temperature sensor.
ECM 3031 5 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current below normal or open cir-
cuit
ECM 3031 5 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current below normal or open cir-
cuit
ECM 3031 6 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current above normal or grounded
circuit
ECM 3031 6 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor Circuit
- Current above normal or grounded
circuit
ECM 3031 7 P E Aftertreatment #1 DEF Tant Tem-
perature - Not Responding Properly
ECM 3031 7 P L Aftertreatment #1 DEF Tant Tem-
perature - Not Responding Properly
ECM 3031 0 S F SCR main unit, high temperature
low limit exceedence
ECM 3031 1 S F Aftertreatment Diesel Exhaust Fluid
Tank Temperature
ECM 3031 1 S E The reductant tank temperature sen-
sor indicates incorrect values.
ECM 3031 1 S L The reductant tank temperature sen-
sor indicates incorrect values.
ECM 3031 11 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature - Root Cause
Not Known
ECM 3031 11 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature - Root Cause
Not Known
ECM 3031 13 C E Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Out
of Calibration
ECM 3031 13 C L Aftertreatment 1 Diesel Exhaust Flu-
id Tank Temperature Sensor - Out
of Calibration
ECM 3031 3 S F Aftertreatment Diesel Exhaust Fluid
Tank Temperature
ECM 3031 4 S F Aftertreatment Diesel Exhaust Fluid
Tank Temperature
ECM 3031 6 S F Temperature of the reagent in the
storage tank.
continued..........
44
4 SPN 3~