ENGINE (J05E)/TROUBLESHOOTING
2–149
2.
DTC set condition
(1)
DTC detection condition
The conditions described below remain for 11 seconds or more.
•
The battery voltage is in the range of 10 V to 16 V.
•
The engine speed remains at 500 r/min or more for 5 seconds or more.
The conditions described below remain for 40 seconds or more.
•
The engine speed is 1500 r/min or more.
•
Fuel injection quantity is 40 mm
3
/st.cyl or more.
•
A change in the engine speed is 156 r/min/sec or less.
•
A change in fuel injection quantity is 78 mm
3
/st.cyl. sec or less.
•
Atmospheric pressure is higher than 75 kPa.
•
Vehicle speed is 13 mph or more.
•
Intake air quantity is 45 g/sec or more.
•
Intake air temperature sensor (built-in air flow sensor) is -10
C {14
F} or more.
•
Exhaust brake and DPR is not actuated.
(2)
Judgement criteria
•
The calculated intercooler efficiency, which is derived from the intake temperature sensor, boost pressure sen-
sor, intercooler outlet temperature sensor, and atmospheric pressure sensor, is greater than 140%.
3.
Reset condition
•
After restoration to normal condition
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: ON
•
SVS light: OFF
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
•
Intercooler outlet temperature sensor malfunction
•
Failure of intake air temperature sensor (with built-in air flow sensor)
•
Boost pressure sensor
- Sensor is disconnected from measuring site or sensing unit is malfunctioning (due to dirt, clogging, damage, etc.)
- Faulty resistance (due to sticking)
•
ECU sensor power supply failure
