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Diagnostic function
Code 5.6 Boost pressure
Cause: High boost pressure.
Consequence: The engine power is reduced until normal
values are obtained.
Corrective action:
• Check the air filter and the delivery pipe between the
intake manifold and the control module.
• Erase the diagnostic trouble code (DTC).
• Start the engine.
• Contact an authorized workshop if the fault persists.
Code 6.4 MS unit
Cause: Incorrect signals from the control potentiometer or
the control panel on an alternative control position (or a
fault in the MS unit).
Consequence: The boat cannot be operated from the
alternative control position.
Corrective action:
• Check the wiring and connections for the control, control
panel and the wiring and connections leading to alterna-
tive control position.
• Erase the diagnostic trouble code (DTC).
• Start the engine.
• Drive from an alternative control position if the fault per-
sists.
Code 8.1 Control module
Cause: Fault in the control module
Consequence: The engine stops, cannot be started, the
control position cannot be activated.
Corrective action:
• Erase the diagnostic trouble code (DTC).
• Start the engine.
• Contact an authorized workshop if the fault persists.
Code 8.3 Calibration
Cause: The calibration values cannot be stored by the
control module.
Consequence: The control must be calibrated before each
start.
Corrective action:
• Erase the diagnostic trouble code (DTC).
• Recalibrate the control.
• Contact an authorized workshop if the fault persists.
Code 9.1 MS unit
Cause: The MS unit receives no signal from the control
unit.
Consequence: The boat cannot be operated from the
alternative control position.
Corrective action:
• Check the wiring and connections for the control module
and the wiring and connections leading to alternative
control position.
• Erase the diagnostic trouble code (DTC).
• Start the engine.
• Drive from an alternative control position if the fault per-
sists.
Code 9.9 Program memory
Cause: Fault when the ignition is switched on or a fault in
the program memory.
Consequence: The engine cannot be started.
Corrective action:
• Turn off power completely and wait three minutes before
reconnecting.
• Check the wiring and the connections for the power sup-
ply (battery, starter motor, ignition switch, etc.).
• Erase the diagnostic trouble code (DTC).
• Start the engine.
• Contact an authorized workshop if the fault persists.
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