Dtc: P0112 And P0113; P0112: Intake Air Temperature Sensor - Out Of Range (Low) - Hino Motors HINO 155 series Workshop Manual

DTC: P0112 and P0113

P0112: Intake air temperature sensor (air flow sensor built-in) - out of range
(Out of range low)
INFORMATION
Coolant temperature sensor
Body earth
Intake air
temperature sensor
(air flow sensor built in)
1. Technical description
• The intake air temperature sensor built in the air flow sensor consistently measures intake air temperature.
<Description of malfunction>
• The intake air temperature cannot be correctly recognized.
2. DTC set condition
(1) DTC detection condition
• Starter key "ON".
• 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 intake air temperature sensor (built in air flow sensor) remains less than 0.09 V (90 C {194 F})
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
(E)
Z5G
X71
(FC)
XCV
(E2G)
XCT
(+B)
Z65
(E2)
X72
(THA)
10mA X28 (THW)
10mA
ZJQ
(E5)
10mA
X4K (VG)
200mA (EVG)
XMH
(VAF)
200mA X2U
10mA
(THA)
10mA X82
2–227
EN01H02127030602016043
Engine ECU
SHTS021270300207