Yanmar BY Series Service Manual page 273

TROUBLESHOOTING
Code Fail
Throttle Signal
P0222
Throttle Signal
Throttle Signal
P0223
Throttle Signal
P0230 Fuel Feed Pump
P0231 Fuel Feed Pump
P0232 Fuel Feed Pump
P0236 Boost Pressure
Boost Pressure
P0237
Boost Pressure
Sensor
Boost Pressure
P0238
Boost Pressure
Sensor
P0261 Injector No. 1
P0264 Injector No. 2
P0267 Injector No. 3
P0270 Injector No. 4
P0273 Injector No. 5
P0276 Injector No. 6
Camshaft or
P0344 Crankshaft Speed
Sensor
Glow Control Relay
P0380
Actuator
P0562 System Voltage Low
System Voltage
P0563
High
Control Module
Programming Error
P0602
(Hwemon)
Shut Off Path
P0607 Injector Chip Fault
Sensor Supply
P0642
Monitoring 1
Sensor Supply
P0643
Monitoring 1
P0650 Check Engine Lamp
Sensor Supply
P0652
Monitoring 2
13-12
Mode
Both throttle signals are missing / short circuit to
Ground
Throttle signal 2 is missing / short circuit to Ground
Both throttle signals are short circuited to B+
Throttle signal 2 short circuited to B+
Not connected
Short circuit to Ground
Short circuit to B+
Plausibility check with APS (ambient air pressure
sensor) fail
Under 0.5 bar (7.3 psi) (absolute**)
No connection / short circuit to Ground
4 bar (58.0 psi) (absolute**)
Short circuit to B+
Short circuit to B+
Short circuit to B+
Short circuit to B+
Short circuit to B+
Short circuit to B+
Short circuit to B+
Disagreement between camshaft speed sensor and
crankshaft speed sensor
Not connected, short circuit
Over-voltage / under-voltage
Control module programming error
Injector control module performance
Short circuit
Short circuit
Not connected, short circuit
Short circuit
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BY Service Manual
Trouble Codes
Engine Check
Run or
Can Engine
Condition
Start Alarm
1600 yes
reduce yes
1600 yes
reduce yes
no no
reduce yes
no no
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
reduce yes
no no
yes yes
yes no
yes yes
no no
no no
no no
reduce yes
reduce yes
yes yes
reduce yes
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm
alarm