Volvo Penta D4 Operator's Manual page 87

1.2.9 R
Explanation: Fault in engine speed sensor.
Reaction: Engine power is reduced.
Action:
• Please contact a Volvo Penta workshop.
1.3.9 O
Explanation: Fault in compressor.
Reaction: Engine power is reduced.
Action:
• Please contact a Volvo Penta workshop.
1.4.6 O
Explanation: Fault in engine starter motor
Reaction: Engine can not be started.
Action:
• Please contact a Volvo Penta workshop.
1.4.9 O/R
Explanation: Sensor fault in engine
Reaction: Engine power can be reduced.
Action:
• Please contact a Volvo Penta workshop.
1.6.1 R
Explanation: Excessive coolant temperature
Reaction: Engine power is reduced.
Action:
• Check coolant level. Please refer to "Maintenance: Fresh water system".
• Check that the sea water filter is not blocked. Please refer to "Maintenance: Sea water system".
• Check the impeller in the sea water pump. Please refer to "Maintenance: Sea water system".
• Check that no leakage occurs.
• Contact a Volvo Penta workshop if the fault remains.
Fault code register
85