P0104: Air Flow Sensor - Out Of Range; Dtc: P0104 - Hino Motors HINO 155 series Workshop Manual

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DTC: P0104

P0104: Air flow sensor - out of range

INFORMATION
Coolant temperature sensor
Body earth
Intake air
temperature sensor
(air flow sensor built in)
1. Technical description
• The air flow sensor installed to the air cleaner consistently measures an intake air volume.
<Description of malfunction>
• The air flow sensor value 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.
• Engine speed remains at 725 r/min or more for 5 seconds or more.
(2) Judgement criteria
• The condition that the output of the air flow sensor is less than 2.00 kHz (3.9 kg/h) remains for 2 seconds or
more, or the condition that the output of the air flow sensor is greater than 9.8 kHz (1632 kg/h) remains for 2
seconds or more.
3. Reset condition
• After normal operation is restored and the starter key is turned "LOCK".
4. Indication, warning or system control regulation when the DTC is set.
• MIL: ON
• SVS light: OFF
• Engine output is restricted
5. Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
• Engine output is insufficient.
<Symptoms on the vehicle due to malfunction>
• –
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
EN01H02127030602016040
Engine ECU
SHTS021270300190