2–614
5.
Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• –
<Symptoms on the vehicle due to malfunction>
• –
6.
Pre-inspection work
• Check that the battery voltage is in the normal range.
7.
After-inspection work
• Clear all past DTCs.
• Check that no DTC is detected after test drive.
8.
Estimated failure factors
• Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to dirt, clogging, damage, etc.).
• EGR valve failure.
• Diesel throttle valve failure.
• Intercooler failure (due to dirt, clogging, etc.).
• Engine ECU sensor power supply (air flow sensor dedicated 12 V power supply) failure or internal circuit failure.
ENGINE (J05E)/TROUBLESHOOTING