ENGINE (J05E)/TROUBLESHOOTING
2–594
P0546: Exhaust gas temperature sensor (DOC1 inlet) - out of range (Out of range high)
INFORMATION
1.
Technical description
•
The exhaust gas temperature sensor (DOC1 inlet) consistently detects exhaust gas temperature.
•
A reading taken by the exhaust gas temperature sensor (DOC1 inlet) is used to control DPR regeneration.
<Description of malfunction>
•
Exhaust gas temperature cannot be correctly recognized.
2.
DTC set condition
(1)
DTC detection condition
•
Intake air temperature is -20
C {-4
F} or higher.
•
Battery voltage is in the range of 10 V to 16 V.
•
The engine speed remains at 690 r/min or more for 5 seconds or more.
(2)
Judgement criteria
•
Voltage of the exhaust gas temperature sensor (DOC1 inlet) remains at 4.958 V or higher (-46
C {-50.8
F} or
lower) for 3 seconds.
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 stored after test drive.
Exhaust gas
temperature sensor
(DOC1 inlet)
ZKT
VKF
(TOIL)
(GND)
XYD (THO1)
(E5)
XJQ
TYP 0.001A
TYP 0.004A
Engine ECU
SHTS021270300544