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Fault codes
WARNING! Read through the safety advice for care and maintenance work in the ”Safety information” chap-
ter before you start work.
NOTE! Reading the fault codes below, such as Code 2.1, PID 97 means that 2.1 is the flashing code indicated by
the diagnostic lamp. PID 97 is read with the VODIA diagnostic tool. With the use of DCU or DU the fault mes-
sage will be shown as text in the display.
NOTE! Please refer to ”Wiring schedule CIU and DCU” for references to the sleeves in the electrical connectors
on the engine control unit.
Code 1.1 No faults
There are no active faults.
Code 2.1, PID / SPN 97. Water in fuel
Cause:
• Water in fuel.
Reaction:
• None.
Remedy:
• Empty the primary fuel filter.
Code 2.2, PID / SPN 111. Coolant level
Cause:
• Low coolant level.
Reaction:
• Warning indication.
• Engine control module reduces engine power (un-
less the protection has been shut off with the
VODIA diagnostic tool).
Remedy:
• Check the coolant level.
• Check coolant level monitor function.
Code 2.3, PID / SPN 111. Coolant level sensor
Cause:
• Short circuit to positive (+).
• Fault in sensor.
Reaction:
• None.
Remedy:
• Check that the coolant level sensor cable is not
damaged.
• Check coolant level sensor function.
Code 2.4, SID21 / SPN 637
Flywheel speed sensor
Cause:
• No signal.
• Abnormal frequency.
• “Intermittent” signal from the sensor.
• Fault in sensor.
Reaction:
• Engine is very difficult to start and runs roughly
when it starts.
Remedy:
•
Check that the sensor connector is correctly in-
stalled.
•
Check that the engine speed sensor cable is not
damaged.
•
Check that the engine speed sensor is correctly
installed in the flywheelhousing.
•
Check engine speed sensor function.
Code 2.5, SID22 / SPN 636
Camshaft drive speed sensor
Cause:
• No signal.
• Abnormal frequency.
• Fault in sensor.
Reaction:
• Engine takes longer to start than normal. Engine
runs normally when running.
Remedy:
•
Check that the engine speed sensor connector is
correctly installed.
•
Check that the engine speed sensor cable is not
damaged.
•
Check that the engine speed sensor is correctly
installed in the upper timing gear cover.
•
Check engine speed sensor function.
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