P1515: Charge Air Undercooling; Dtc: P1515 - Hino Motors HINO 155 series Workshop Manual

DTC: P1515

P1515: Charge air undercooling

INFORMATION
Boost pressure sensor
temperature sensor
1. Technical description
• The intercooler cooling efficiency is monitored by comparing the intake temperature and intercooler outlet tempera-
ture measured by the air flow sensor.
<Description of malfunction>
• Intercooler cooling efficiency drop is detected.
2. DTC set condition
(1) DTC detection condition
The conditions described below remain for 11 seconds or more.
• The battery voltage is in the range of 10 to 16 V.
• The condition that the engine speed remains at 500 r/min or more for 5 seconds or more.
The conditions described below remain for 40 seconds or more.
• The engine speed is 1500 r/min or more.
• Fuel injection quantity is 40 mm
• Atmospheric pressure is higher than 75 kPa.
• Vehicle speed is 13 mile/h or more.
• Intake air flow rate is 45 g/s or more.
• Intake air temperature is -10 C {14 F} or more.
• Exhaust brake and DPR are not actuated.
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)
E7Q
(E2)
Intercooler outlet
E7P
(THG)
3
/st. cyl or more.
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)
10mA
10mA XSW
(THAO)
2–811
EN01H02127030602016136
SHTS021270300732