P0106: Boost Pressure Sensor - Rationality; Dtc: P0106 - Hino Motors HINO 155 series Workshop Manual

DTC: P0106

P0106: Boost pressure sensor - rationality

INFORMATION
Boost pressure sensor
1. Technical description
• The boost pressure sensor mounted on the diesel throttle outlet constantly measures the boost pressure.
<Description of malfunction>
• Boost pressure cannot be correctly recognized.
2. DTC set condition
(1) DTC detection condition
• Engine speed is between 720 r/min and 980 r/min.
• Engine speed variation is 234.4 r/min/sec or less.
• Fuel injection rate is between 0 mm
• Fuel injection rate variation is 78.1 mm
• Engine coolant temperature is 55 C {131 F} or less.
• EGR valve opening is 0% or less (EGR-cut status)
• Exhaust brake is not actuated
(2) Judgement criteria
• Theoretical air quantity calculated from boost pressure and atmospheric pressure and actual air quantity are
compared for at least 10 seconds, and the ratio of theoretical air quantity to actual air quantity is at least 1.15
or no greater than 0.75.
• And: Difference between DCY value prior to above result and current DCY value is 0.10 or less; and
• When prior DCY starter key is turned "LOCK" and engine is stopped, (Average boost pressure – average
atmospheric pressure) is ≥ 18 kPa, and this condition continues for at least 3 seconds.
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.
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)
3
/st. cyl and 80 mm
3
/st. cyl or less.
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)
3
/st. cyl.
2–215
EN01H02127030602016041
SHTS021270300197