Fault Codes of Volvo Power Generator

Fault Codes of Volvo Power Generator

Fault Codes

WARNING! Read the safety instructions for handling and service in chapter “Safety information” before starting work.

NOTE: Reading the fault codes below, such as Code 2.1, PID /SPN 97, where 2.1 is a flash code indicated by a flashing diagnostic lamp. PID / SPN 97 is read with the VODIA diagnostic tool. When using DCU or DU, the fault code is displayed as plain text.

For a further explanation, see “Reading fault codes”.

NOTE: Please refer to “Wiring schedule CIU and DCU” for references to the sockets 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

Reason:

• Water in fuel.

Reaction:

• None.

Action:

• Empty the fuel pre-filter.

Code 2.2, PID / SPN 111. Coolant level

Reason:

• Low coolant level.

Reaction:

• Engine control module reduces engine power (unless the protection has been shut off with the VODIA diagnostic tool).

• Engine stopped

Action:

• Check the coolant level.

• Check coolant level monitor function.

Code 2.3, PID / SPN 111. Coolant level sensor

Reason:

• Short circuit to positive (+).

• Fault in sensor.

Reaction:

• None.

Action:

• Check that the coolant level sensor cable is not damaged.

• Check coolant level sensor function.

Code 2.4, SID 22 / SPN 637 Engine speed sensor, flywheel

Reason:

• 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.

Action:

• Check that the 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 flywheel casing.

• Check engine speed sensor function.

Code 2.5, SID 21 / SPN 636 Volvo Engine speed sensor, camshaft