COMMON RAIL SYSTEM
V3800-CR-TE4,V3800-CR-TIE4, DM
1-S74
9Y1200192CRS0614US0
Name
MAF sensor abnormality
ISO 14229
P-Code
P0102
P0103
J1939-73
SPN
132
132
FMI
4
3
DTC Name
MAF sensor: Low
MAF sensor: High
Management Unit
for Detected Part
MAFL
MAFH
Detection item
• Open circuit or ground short circuit of
sensor / harness.
• Failure of sensor
• +B short circuit of sensor / harness
• Failure of sensor
DTC Set
Preconditions
• Battery voltage is normal
• Starter Switch signal (ECU: B-54
terminal) is not activated
• Sensor supply voltage is normal
• Battery voltage is normal
• 700 min
-1
(rpm)
≤
engine speed
≤
2800 min
-1
(rpm) and target intake mass
air flow is 460 or less and it continues for
3 secs
• Sensor supply voltage is normal
DTC set parameter
• Mass air flow sensor voltage: 0.1 V or
less
• Mass air flow sensor voltage: 4.9 V or
more in certain operation condition
Time to action or
number of error
detection
• 2.8 sec. or more
• 2.8 sec. or more
System Action
• 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
• 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
Behaviour During
Malfunction
• Insufficient output
• Worsening exhaust gas performance
• Insufficient output
• Worsening exhaust gas performance
Engine Warning
Light
• ON
• ON
Recovery from
error
• Key switch turn OFF
• Key switch turn OFF
KiSC issued 05, 2012 A
