P0237: Boost Pressure Sensor - Out Of Range (Out Of Range Low); Dtc: P0237 - Hino Motors HINO 155 series Workshop Manual

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DTC: P0237

P0237: Boost pressure sensor - out of range (Out of range low)

INFORMATION
Boost pressure sensor
1. Technical description
• The boost pressure sensor install in the outlet of the diesel throttle consistently detects boost pressure.
<Description of malfunction>
• Boost pressure 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 sensor remains at 0.3 V (32.4 kPa) or less for 3 seconds or longer.
3. Reset condition
• After restoration to normal condition and starter key "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>
• –
6. Pre-inspection work
• Check that the battery voltage is in the normal range.
ENGINE (J05E)/TROUBLESHOOTING
EBK
(E1)
EBJ
(PCR1)
EBH
(VC1)
Common rail
EBN
(E2)
pressure sensor
EBM
(PCR2)
EBL
(VC2)
J0M
(VC)
J0L
(PIM)
Z6R
(E)
Engine ECU
$XV
(PC1S)
15mA Z70
(E1)
2mA
XZG
(PCR1)
15mA
X85
(VC)
15mA
Z72
(E2)
2mA
XZH
(PCR2)
15mA
XG2
(VC2)
$XW (PC2S)
15mA
5mA
X0G (PIM)
15mA
ZJP (E4)
EN01H02127030602016063
SHTS021270300343