Failsafe Diagnosis Functional Specification Chart - Yanmar 4JH45 Operation Manual

TROUBLESHOOTING
FAILSAFE DIAGNOSIS FUNCTIONAL SPECIFICATION
CHART
Failsafe Actions
Level 1 (LV1): Reduce engine speed to 2400 min
Level 2 (LV2): Reduce engine speed to 1600 min
Level 3 (LV3): Reduce engine speed to 1000 min
Level 4 (LV4): Reduce engine speed to low idle
LCD SPN SPN
CHK ENG P0008 523249
CHK ENG P000F 157
CHK ENG P0088 157
CHK ENG P0093 157
CHK ENG P0094 157
CHK ENG P0117 110
CHK ENG P0118 110
AC1 ERR P0122 91
AC1 ERR P0123 91
AC2 ERR P0222 28
AC2 ERR P0223 28
AC1 ERR P0223 91
AC2 ERR P0222 28
AC1 ERR P0123 91
AC2 ERR P0122 28
CHK ENG P0168 174
CHK ENG P0182 174
CHK ENG P0183 174
CHK ENG P0192 157
CHK ENG P0193 157
CHK ENG P0201 651
CHK ENG P0202 652
CHK ENG P0203 653
CHK ENG P0204 654
OV HEAT P0217 110
OV REV P0219 190
- P0227 29
- P0228 29
bOOST P0234 102
88
With
FMI DTC Description
FFD
5 - Crank & Cam Position Sensor No
signal
16 - Rail Pressure Limit Valve Open

0 Rail Pressure Too High - Exceed
the limit

15 Rail Pressure Deviation Error -
Higher Than The Target

18 Rail pressure Deviation Error -
Lower Than The Target
4 - Coolant Temperature Sensor
Error - High Range
3 - Coolant Temperature Sensor
Error - Low Range
4 - Main Analog Throttle Sensor 1
Error - Low Range
3 - Main Analog Throttle Sensor 1
Error - High Range
4 - Main Analog Throttle Sensor 2
Error - Low Range
3 - Main Analog Throttle Sensor 2
Error - High Range
4 - Main Analog Throttle Sensor 1
4 Error - Low Range
Main Analog Throttle Sensor 2
Error - Low Range
3 - Main Analog Throttle Sensor 1
3 Error - High Range
Main Analog Throttle Sensor 2
Error - High Range

0 Fuel Temperature Too High
4 - Fuel Temperature Sensor Error -
Low Range
3 - Fuel Temperature Sensor Error -
High Range
4 - Rail Pressure Sensor Error - Low Range
3 - Rail pressure Sensor Error - High Range
5 - Injector 1 - Open Circuit
5 - Injector 2 - Open Circuit
5 - Injector 3 - Open Circuit
5 - Injector 4 - Open Circuit

0 Engine Coolant Temperature Too High

0 Engine Overspeed Condition
4 - Sub Throttle Sensor Error - Low Range
3 - Sub Throttle Sensor Error - High Range

0 Boost Pressure Too High
-1
or less
-1
or less
-1
Failsafe Action
Level Level Level Level
1 2 3 4
- - - -

- - -

- - -

- - -

- - -
- - - -
- - - -
- - - -
- - - -
- - - -
- - - -

- - -

- - -

- - -
- - - -
- - - -

- - -

- - -

- - -

- - -

- - -

- - -

- - -
- - - -
- - - -
- - - -

- - -
JH Series Operation Manual
ENG
Note
Stop
Crank speed sensor fault

and cam speed sensor fault
occur at the same time
-
-
-
Suspicious Fuel Leak on
-
the high pressure line
Engine is still
-
operational.
Suspicious Broken
-
sensor or wire
One signal of the dual
-
throttle sensor is out of
limit.
-
-
-
Both signal of the dual
throttle sensor are out of
-
limit
-
Suspicious insufficient
-
fuel in the fuel tank
Engine is still
-
operational.
Suspicious Broken
sensor or wire, poor
-
connection
- Suspicious Broken
sensor or wire, poor
-
connection
- Suspicious Broken
injector or wire, poor
-
connection
-
-
-

- (When Backup Panel is
operated only)
-
-