Yanmar 4JH45 - Returning the Engine to Service

TROUBLESHOOTING
142 JH Series Operation Manual
FAILSAFE DIAGNOSIS FUNCTIONAL SPECIFICATION
CHART
Failsafe Actions
Level 1 (LV1): Reduce engine speed to 2400 min
-1
or less
Level 2 (LV2): Reduce engine speed to 1600 min
-1
or less
Level 3 (LV3): Reduce engine speed to 1000 min
-1
Level 4 (LV4): Reduce engine speed to low idle
LCD DTC SPN FMI
With
FFD
DTC Description
Failsafe Action
Level
1
Level
2
Level
3
Level
4
ENG
Stop
Note
Engine-ECU
CHK ENG P000F 157 16 - Rail Pressure Limit Valve Open  ----
CHK ENG P0088 157 0  Rail Pressure Too High - Exceed
the limit
 ----
CHK ENG P0093 157 15  Rail Pressure Deviation Error -
Higher Than The Target
 ----
CHK ENG P0094 157 18  Rail pressure Deviation Error -
Lower Than The Target
 ----
Suspicious Fuel Leak on
the high pressure line
CHK ENG P0117 110 4 - Coolant Temperature Sensor
Error - High Range
-----
Engine is still
operational.
Suspicious Broken
sensor or wire
CHK ENG P0118 110 3 - Coolant Temperature Sensor
Error - Low Range
-----
AC1 ERR P0122 91 4 - Main Analog Throttle Sensor 1
Error - Low Range
-----
One signal of the dual
throttle sensor is out of
limit.
AC1 ERR P0123 91 3 - Main Analog Throttle Sensor 1
Error - High Range
-----
AC2 ERR P0222 28 4 - Main Analog Throttle Sensor 2
Error - Low Range
-----
AC2 ERR P0223 28 3 - Main Analog Throttle Sensor 2
Error - High Range
-----
AC1 ERR
AC2 ERR
P0223
P0222
91
28
4
4
- Main Analog Throttle Sensor 1
Error - Low Range
Main Analog Throttle Sensor 2
Error - Low Range
-- --
Both signal of the dual
throttle sensor are out of
limit
AC1 ERR
AC2 ERR
P0123
P0122
91
28
3
3
- Main Analog Throttle Sensor 1
Error - High Range
Main Analog Throttle Sensor 2
Error - High Range
-- --
CHK ENG P0168 174 0  Fuel Temperature Too High
 ----
Suspicious insufficient
fuel in the fuel tank
CHK ENG P0182 174 4 - Fuel Temperature Sensor Error -
Low Range
-----
Engine is still
operational.
Suspicious Broken
sensor or wire, poor
connection
CHK ENG P0183 174 3 - Fuel Temperature Sensor Error -
High Range
-----
CHK ENG P0192 157 4 -
Rail Pressure Sensor Error - Low Range  ----Suspicious Broken
sensor or wire, poor
connection
CHK ENG P0193 157 3 -
Rail pressure Sensor Error - High Range
 ----
CHK ENG P0201 651 5 - Injector 1 - Open Circuit  ----Suspicious Broken
injector or wire, poor
connection
CHK ENG P0202 652 5 - Injector 2 - Open Circuit  ----
CHK ENG P0203 653 5 - Injector 3 - Open Circuit  ----
CHK ENG P0204 654 5 - Injector 4 - Open Circuit  ----
OV HEAT P0217 110 0 
Engine Coolant Temperature Too High  ----
OV REV P0219 190 0  Engine Overspeed Condition ----
- P0227 29 4 -
Sub Throttle Sensor Error - Low Range -----(When Backup Panel is
operated only)
- P0228 29 3 -
Sub Throttle Sensor Error - High Range -----
bOOST P0234 102 0  Boost Pressure Too High  ----
CHK ENG P0237 102 4 -
Boost Pressure Sensor Error - Low Range ----- Engine is still operational.
Suspicious Broken sensor or
wire
CHK ENG P0238 102 3 - Boost pressure Sensor Error - High Range
-----
3JH40_4JH45_4JH57_4JH80_4JH110_EN_OPM.book 142 ページ ２０２２年９月２２日 木曜日 午後６時１７分