Hino 238, Workshop Manual

Page: 281 / 919

ENGINE CONTROL SYSTEM (J08E) 4–1058
DTC: P2214
EN01H16F01030F03001136
P2214: NOx sensor (SCR downstream) - Performance and Monitoring capability
INFORMATION
1. Technical description
• NOx sensor 2 (SCR downstream) is controlled by the NOx sensor controller.
•
The NOx sensor controller is connected via the DCU and a harness, and it sends and receives data.
<Description of malfunction>
•
Characteristics failure of NOx sensor 2 (SCR downstream) is detected.
2. DTC set condition
(1) DTC detection condition
Engine
ECU
Air flow sensor
DCU
#A
W
#A
V
#A
W
#A
V
#S5 #S7
#S5 #S7
LCM
H L
(CA1H)
LCN
LF5 LF6
(CA1L)
(CAL1)
#SD #SF
#SD
#SF
#CP
#CP
#CQ
#CQ
%KH
%KG
(CA3L)
(CA3H)
%KM
(CA3H)
%KL
(CA3L)
&1D &99
&99
A49
(-(1))
A48
Z29
(G4P)
(+(1))
BATTERY1
BATTERY GND
FR W/H BATT GND CABLE
(G4-A)
K6V
H L
(CANH)
K6W
KTR
KTQ
L2P LCH
KTU KTS
KTD
KTT
KTR KTQ KTU
KTS KTT
(AFGD)
(AFSG)
(AFT
-)
(AFVB)
(AFT+)
(A
GD6)
(AFSI)
(A
GD5)
(AFVB)
(THA+)
(THW+)
(ETH2)
K0W L75
L2P LCH KTD K0W L75
(CANL)
H L
&RF
&RK
(CA2H)
(CA2L)
(CAH1)
LF2 LF1
(TE1A) (TE1B)
LF4 LF3
(TE2A) (TE2B)
LEY
LEZ
%JU
%JZ (CA2L)
%JQ
%JV
(CA2L)
%KE
(CA3L)
%KF
(CA3H)
%JX
(CA2L)
%JS
(CA2H)
(CAL0) (CAH0)
&RE
H
H
L
H
L
%JW
(CA2L)
%JR
(CA2H)
LEC
(CANL)
LED
(CANH)
LEB
(GND)
LEA
(VCC)
A99
(3GLD)
A8V
FUSE NOX2
FUSE NOX1
(6BLD)
LE8
(CANL)
LE9
(CANH)
(VCC)
(GND)
(GND)
LE6
LGU
LE7
L
(12)
(CA2H)
(CA2H) &RJ (CA2L)
&RD
(CA2H)
&RH
(CA2L)
LJM
LJN
(CAH1)
(CAL1)
LJK
LJL
(CAH0)
(CAL0)
BCU
NOx
sensor1
NOx
sensor2
#A
Q
#AR
#A
Q
#AR
#PG
#PG
#PH
#PH
#A
U
#
A
U
Engine
coolant
temperature
sensor 1
E23
K0U
E23 E24
(WTM+)
(WTM-)
K0U
(E2)
LHM
(THG)
LHN
LL8
(A
GD4)
KUG
Exhaust gas
temperature
sensor
(SCR inlet)
External
resistance
Ambient air temperature
sensor
LFG
LFH
LE4
LE5
(EXT-)
(EXT+)
(FAT-)
(FAT+)
LNM
LNN
LGJ
LGK
LQY LQ
U
(ER-)
(ER+)
(ATS-)
(ATSS)
(HH1-)
(HH1+)
EGR gas
temperature
sensor
Common rail_
CAN_J/C3
Common rail_
CAN_J/C2
Common rail_
CAN_J/C1
SAPH16F010300819