Hino 238, Workshop Manual

Page: 526 / 919

ENGINE CONTROL SYSTEM (J08E) 4–1303
DTC: P2BA9
EN01H16F01030F03001158
P2BA9: Insufficient Reagent Quality
INFORMATION
1. Technical description
• Poor DEF quality is determined by the DEF quality sensor, which measures the DEF concentration and determines
its quality.
<Description of malfunction>
•
Poor DEF quality is detected.
2. DTC set condition
(1) DTC detection condition
[Normal conditions]
Conditions below continue for 10 seconds:
•
Starter switch ON.
• DEF tank level
>
25 %
•
DEF tank temperature 1
>
-5

C {23

F}
• DEF tank temperature 2
>
-5

C {23

F}
•
[DEF tank temperature 1 - temperature 2]
<
15

C {59

F}
• Difference among exhaust temperature (DPR inlet), coolant temperature, and DEF tank temperature 2 is no
greater than 15

C {59

F}.
•
DEF pump is not operating.
• There is no record of vehicle speed
>
2 km/h.
•
There is no record of transmission being in any gear other than neutral.
• There is no record of malfunction determination after starter switch has been turned ON.
DEF
sensor
H
L
LEK
LEJ
(CANL)
(CANH)
%KP %KN
(CA3H)
(CA3L)
NOx
sensor 1
NOx
sensor 2
%JU
%JZ
%JQ
%KF
%JV
(CA2H)
(CA2L)
(12)
(CA2L)
(CA3H)
%KH
%KG
(CA3L)
(CA3H)
%KE
(CA3L)
%KM
(CA3H)
%KL
(CA3L)
%JR
(CA2H)
%JW
(CA2L)
LE9
LE8
(CANH) (CANL)
H
L
H
L
H
L
%JS
(CA2H)
%JX
(CA2L)
LED LEC
(CANH) (CANL)
ECU
DCU
#S5
#S7
#S5
#S7
#AW
#AV
#AW
#AV
#CU
#CV
#CU
#CV
LCM
H
L
H
L
(CA1H)
LCN
(CA1H)
&JN
&JI
(CA1L)
(CA1H)
&JM
&JL
(CA1L)
LF5
LF6
(CA1L)
(CAL1)
#CP #CP
#CQ #CQ
#SD #SD
#SF #SF
K6V (CANH)
K6W
(CANL)
H
L
H
L
%KC
No.30 J/C
(CA1H)
&JN
&JI
(CA1L)
(CA1H)
&JM
&JL
(CA1L)
H
L
Common rail CAN J/C2
(CA1H)
%KD
(CAL1)
(CAH1)
(CAL0)
(CAH0)
LJM LJN
(CAH1) (CAL1)
LJK
LJL
(CAH0)
(CAL0)
LEZ
LEY
(TE2A)
(TE2B)
(TE1A)
(TE1B)
BCU
SAPH16F010301027