P041B: Egr Gas Temperature Sensor - Rationality; Dtc: P041B - Hino Motors HINO 155 series Workshop Manual

DTC: P041B

P041B: EGR gas temperature sensor - rationality

INFORMATION [at engine start]
Common rail
pressure sensor
Intake manifold
temperature sensor
1. Technical description
• The EGR cooler outlet temperature sensor consistently measures temperature at the outlet of the EGR cooler.
<Description of malfunction>
• EGR cooler outlet temperature cannot be correctly recognized.
2. DTC set condition
(1) DTC detection condition
The conditions described below remain for 20 seconds or more.
• The engine speed is 1000 r/min or less.
• Fuel injection quantity is 35 mm
• Engine coolant temperature is in the range of -30 to 30 C {-22 to 86 F}.
• The battery voltage is in the range of 10 to 16 V.
• Exhaust brake not actuated
• EGR valve opening is fully open.
• The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.
(2) Judgement criteria
• Judged when the average EGR gas temperature is 70 C {158 F} or more.
3. Reset condition
• Immediately after normal operation is restored.
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
ENGINE (J05E)/TROUBLESHOOTING
Engine ECU
EGR cooler outlet
temperature sensor temperature sensor
Boost pressure
sensor
3
/st.cyl or less.
VNT
controller
Intercooler outlet
2–505
EN01H02127030602016078
Resistor
Actuator power
relay
EGR
actuator
Y2E Y4J Z90
NAT X36 $4
SHTS021270300469