Yanmar 6LY3 series Service Manual page 337

Troubleshooting by DTC Fault Codes
12/05
P0198/0 (Oil Temperature Too High)
DTC P0198/0
DTC Fault Code
DTC / FMI 1. Condition, 2. Fault, 3. Time to Detect, 4. Display
1. Key switch ON
2. Oil temperature is above 120°C (248°F)
P0198/0
3. 0.5 seconds
4. CHECK ENGINE on the TELEFLEX display
Fail Mode
Limited Operation
Fail Release
Remarks
Fault
DTC / FMI
P0198/0
Diagnosis Procedure
1. Check the seawater pump impeller.
2. Check the seacock.
3. Check the seawater system.
4. Check the oil cooler.
5. Check the oil level.
6. Check the oil temperature sensor.
6LY3 Service Manual
Temperature Too High
No limited operation
Yes
When the oil temperature goes below 115°C (239°F) for 0.5 seconds
Normal oil temperature at rated speed is about 90°C (194°F).
1. Seawater pump impeller
2. Seacock
3. Seawater system
4. Oil cooler
5. Oil volume
6. Oil temperature sensor
© 2007 Yanmar Marine International
TROUBLESHOOTING
Oil system
Cooling seawater system
sensor
Probable Cause
Check Point
13-47