P0118: Engine Coolant Temperature Sensor 1 - Out Of Range (High) - Hino Motors HINO 155 series Workshop Manual

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P0118: Engine coolant temperature sensor 1 - out of range (Out of range high)
INFORMATION
Coolant temperature sensor
Body earth
Intake air
temperature sensor
(air flow sensor built in)
1. Technical description
• The engine coolant temperature sensor installed to the thermostat case consistently measures the engine coolant
temperature.
<Description of malfunction>
• The engine coolant temperature cannot be correctly recognized.
2. DTC set condition
(1) DTC detection condition
• Starter key "ON".
• Intake air temperature is -20 C {-4 F} or higher.
• Battery voltage is in the range of 10 V to 16 V.
• The engine is stopped, or the engine speed remains at 500 r/min or more for 5 seconds or more.
(2) Judgement criteria
• Output of the sensor remains at 4.77 V (-37 C {-34.6 F}) or greater for 3 seconds or longer.
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.
ENGINE (J05E)/TROUBLESHOOTING
(THW)
X66
Z5G (E)
X71
(FC)
XCV
(E2G)
XCT
(+B)
Z65
(E2)
X72
(THA)
10mA X28 (THW)
10mA
ZJQ
(E5)
10mA
X4K (VG)
(EVG)
200mA
XMH
(VAF)
200mA X2U
10mA
(THA)
10mA X82
Engine ECU
SHTS021270300225