Maf Sensor Abnormality - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM
Name
ISO 14229
P-Code
SPN
J1939-73
FMI
DTC Name MAF sensor: Low
Management Unit
for Detected Part
Detection item
DTC Set
Preconditions
DTC set parameter
Time to action or
number of error
detection
System Action
Behaviour During
Malfunction
Engine Warning
Light
Recovery from
error
P0102
132
4
MAFL
• Open circuit or ground short circuit of
sensor / harness.
• Failure of sensor
• Battery voltage is normal
• Starter Switch signal (ECU: B-54
terminal) is not activated
• Sensor supply voltage is normal
• Mass air flow sensor voltage: 0.1 V or
less
• 2.8 sec. or more
• Sensor output: 0.7 times of target value
at normal condition [default value]
• Output limitation: Approximately 75 % of
normal condition
• EGR stop
• Intake throttle 100 % open
• Insufficient output
• Worsening exhaust gas performance
• ON
• Key switch turn OFF

MAF sensor abnormality

MAF sensor: High
• +B short circuit of sensor / harness
• Failure of sensor
• Battery voltage is normal
• 700 min
2800 min
air flow is 460 or less and it continues for
3 secs
• Sensor supply voltage is normal
• Mass air flow sensor voltage: 4.9 V or
more in certain operation condition
• 2.8 sec. or more
• Sensor output: 0.7 times of target value
at normal condition [default value]
• Output limitation: Approximately 75 % of
normal condition
• EGR stop
• Intake throttle 100 % open
• Insufficient output
• Worsening exhaust gas performance
• ON
• Key switch turn OFF
1-S74
COMMON RAIL SYSTEM
P0103
132
3
MAFH
-1
(rpm) ≤ engine speed ≤
-1
(rpm) and target intake mass
9Y1200192CRS0614US0
KiSC issued 05, 2012 A