Volvo Penta D4 Operator's Manual page 92

Fault code register
3.3.1 R
Explanation: Fault in control lever.
Reaction: Engine can not be controlled.
Action:
• If the engine can not be operated from the chosen control panel, use an alternative control panel.
• Switch the ignition off, and repeat the calibration procedure.
• Check that the control levers are approved by Volvo Penta and correctly installed.
• Please contact a Volvo Penta workshop.
3.9.9 O/R
Explanation: Internal fault in the EVC system.
Reaction: Engine power is reduced.
Action:
• If the engine can not be operated from the chosen control panel, use an alternative control panel.
• Please contact a Volvo Penta workshop.
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