COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S161
(8) MAF Sensor Abnormality (DTC P0102 / 132-4 (NCD), P0103 / 132-3)
P0102 / 132-4: MAF sensor: Low (NCD)
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• Open circuit or ground short circuit of sensor / harness.
DTC set preconditions:
• Battery voltage is normal
• Starter Switch signal (Engine ECU: V12 terminal) is not activated
• Sensor supply voltage is normal
DTC set parameter:
• Air flow sensor voltage: 0.1 V or less
Engine warning light:
•ON
Limp home action by engine ECU (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
• Refer to the sheet of "Pattern of NCD Inducement" (Refer to page "3. ACTIVE TEST AND UTILITY" on page
1-S17)
Recovery from error:
• Diagnostic counter = zero
9Y3200007CRS0201US0
P0103 / 132-3: MAF sensor: High
Behaviour during malfunction:
• Insufficient output
• Worsening exhaust gas performance
Detection item:
• +B short circuit of sensor / harness
DTC set preconditions:
• Battery voltage is normal
•700 min
-1
(rpm) ≤ engine speed ≤ 2800 min
-1
(rpm)
• Target intake mass air flow is 460 or less and it continues for 3 sec.
• Sensor supply voltage is normal
DTC set parameter:
• Air flow sensor voltage: 4.9 V or more in certain operation condition
Engine warning light:
• ON (Blinking)
Limp home action by engine ECU (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
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0202US0
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