ENGINE (J05E)/TROUBLESHOOTING
2–812
(2)
Judgement criteria
The following conditions are detected.
•
The detected intake manifold intake air temperature minus the actual intake manifold intake air temperature is
less than 10
C {50
F} if the EGR activation rate is 0%; less than 17
C {62.6
F} if the EGR activation rate is
less than 20%; or less than 60
C {140
F} if the EGR activation rate is 60%.
•
The intercooler efficiency, which is calculated based on the air intake temperature sensor, boost pressure sen-
sor, and intercooler outlet temperature sensor and air pressure sensor, is less than 30% if the vehicle speed is
13 mile/ h or less than 50% if the vehicle speed is 25 mile/h.
3.
Reset condition
•
Just 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
1. Insufficient cooling air
•
Foreign substance clogging intercooler outer fins
•
Foreign substance clogging radiator outer fins
•
Deformed or clogged intercooler outer fin
•
Deformed or clogged radiator outer fin
•
Foreign substance clogging air inlet at front of vehicle
2. Faulty intercooler
•
Tube abnormal swelling or cracking
3. Faulty part other than intercooler
•
Engine cooling fan failure
•
Fan clutch failure
•
Clogged air cleaner