ENGINE (J05E)/TROUBLESHOOTING
2–510
(2)
Judgement criteria
•
Judged when the calculated EGR cooler efficiency is less than 80%;
•
If the values of difference between the calculated intake manifold air intake temperature and the actual intake
manifold air intake temperature) are as follows: If the EGR rate is 0%: the difference is 10
C {50
F} or more.
If the EGR rate is 20%: the difference is 17
C {62.6
F} or more. If the EGR rate is 60%: the difference is 60
C {140
F} or more. In addition;
•
The calculated intercooler efficiencies are as follows. If the vehicle speed is 13 mile/h: the efficiency is higher
than 30%. If the vehicle speed is 25 mile/h: the efficiency is higher than 50%.
3.
Reset condition
•
After restoration to normal condition and starter key "LOCK"
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
•
Malfunction of intake air temperature sensor (intercooler outlet)
•
Malfunction of intake air temperature sensor (intake manifold)
•
Malfunction of boost pressure sensor
- Loose/disconnected sensor or failure in sensing area (contamination, clogging or damage)
- Abnormal resistance of sensor (stuck)
•
Malfunction of engine ECU sensor power supply