LeeBoy 8608 - Page 148

SPN FMI DTC SYMPTOM/CAUSE RECOVERY FROM ERROR
110 0 Engine overheat.
Overheat of engine temperature
greater than 248° F (120° C)
Diagnostic counter = zero
Output limitation: approximately 75%
of normal condition. EGR stop. Intake
throttle 100% open.
110 3
Coolant temperature sen-
sor: High
Open circuit or +B short circuit of
sensor/harness. Voltage of coolant
temperature sensor is 4.9V or above.
Key switch turn OFF.
(White smoke increases at low tem-
perature.)
110 4
Coolant temperature sen-
sor: Low
Ground short circuit of sensor/har-
ness. Voltage of coolant temperature
sensor is 0.1V or less.
Key switch turn OFF.
(White smoke increases at low tem-
perature.)
132 1 Intake air volume: Low
Engine inlet air mass ow rate tacking.
(Disconnect turbo blower intake hose.)
Key switch turn OFF.
132 3 MAF sensor: High
Engine inlet air mass ow rate less
than half of target value. MAF sensor
voltage: 4.9V or more at normal oper-
ating condition.
Key switch turn OFF.
Engine is not forcibly stopped by
ECU. STRONGLY recommend opera-
tor stop engine promptly.
132 4 MAF sensor: Low
Open circuit or ground short circuit of
sensor/harness. MAF sensor voltage:
0.1V or less.
Key switch turn OFF.
Engine is not forcibly stopped by
ECU. STRONGLY recommend opera-
tor stop engine promptly.
132 15 Boost pressure: Low
Boost pressure sensor output is below
target level in high air ow operating
conditions.
Key switch turn OFF. EGR stop.
Engine power is restricted by boost
pressure signal accordingly.
157 0 High rail pressure.
Actual pressure exceeds the com-
mand pressure. Actual pressure ≥
197MPa (28600 psi or 2010 kgf/cm
2
Diagnostic counter = zero
EGR stop.
157 3
Rail pressure sensor:
High
Open circuit or +B short circuit of
sensor/harness. Failure of sensor.
Voltage or rail pressure sensor is 4.9V
or above.
Key switch turn OFF.
Engine running noise and white smoke
increases. Engine forcibly stopped.
157 4
Rail pressure sensor:
Low
Ground short circuit of sensor/har-
ness. Failure of sensor. Voltage of rail
pressure sensor is 0.7V or less.
Key switch turn OFF.
Engine running noise and white smoke
increases. Engine forcibly stopped.
168 3 Battery voltage: High
Open circuit, short circuit or damage
to harness. Failure of battery. ECU
recognition of battery voltage is above
16V in 12V system. Faulty starting.
Key switch turn OFF.
EGR stop.
168 4 Battery voltage: Low
Open circuit, short circuit or damage
to harness. Failure of battery. ECU
recognition of battery voltage is below
8V in 12V system. Faulty starting or
engine may stop completely. (Not
monitored during cranking.)
Diagnostic counter = zero
EGR stop.
171 3
Intake air temperature
built-in MAF sensor: High
Open circuit or +B short circuit of sen-
sor/harness. Intake air temperature
built-in MAF sensor voltage: 4.9V or
more.
Diagnostic counter = zero
171 4
Intake air temperature
built-in MAF sensor: Low
Ground short circuit of sensor/har-
ness. Intake air temperature built-in
MAF sensor voltage: 0.1V or less.
Diagnostic counter = zero
Maintenance
LeeBoy 8608 Commercial Paver5-56