Home Products News Contact Us
Home > Supports > Diesel Engine > Fault Code Register of Volvo Engine

Fault Code Register of Volvo Engine

Oct. 18, 2019

When a malfunction has occurred and the diagnostic system has generated one or more fault codes, these are read out differently depending on the equipment used. Please refer to “Fault code messages”.

If the system indicates that a fault code has been set:

1 Cut engine speed to idle, or shut the Volvo engine off.

2 For DCU/DU

Read the fault code from the display, please refer to Reading fault codes via the DCU or

Reading fault codes via the DU.

For CIU

press the diagnostic button and read the fault code, by observing the flashing of the diagnostic

lamp. Refer to Reading fault codes via the diagnostic lamp, CIU.

3 Look up the fault code in the Fault Code Register chapter and take the recommended measures

 

Reading fault codes via the DU (Display Unit)

Depending on the severity of the fault the text, either 

WARNING! or ALARM STOP (a buzzer sounds) will be shown on the display

1 Press any button to come to the fault list. The fault list shows operation hours and fault message.

2 Look up the fault code in Fault Code Register and take the recommended measures.

3 Press on ACK to acknowledge the fault code. The display background will change color (the

buzzer stops sounding). 4 Press on EXIT to leave the fault list.

 

Reading fault causes via the DCU (Display Control Unit)

When a fault code is set, the following text is shown on the display:

!! ENGINE WARNING !! alternated withPress SEL for information. Read the fault code as follows:

1 Press SEL-button to come to the fault list.

The fault list shows:

-Operation hours

-Fault message

-Active/inactive

2 Look up the fault code in theFault Code Register chapter and take the recommended measures.

3 Press ESC-button to leave the fault list.

NOTICE! To enter the fault list when no fault code has been set, press the SEL button and select Diagnostics from the menu.

 

 

Reading fault codes via the diagnostic lamp on the instrument panel, CIU When the system has discovered a malfunction, the diagnostic lamp starts to flash. If the diagnostic button is depressed and then released, a fault code is flashed out.

The fault code consists of two groups of flashes, separated by a pause of two seconds. A fault code is obtained by counting the number of flashes in each group

Example: paus = Fault Code 2.4

The fault code is stored and can be read as long as the malfunction remains. You can find information about cause, reaction and actions in the Fault Code

Register chapter.

Read the fault code as follows:

1 Press the diagnostic button.

2 Release the diagnostic button and make a note of the fault that is flashed out.

3 Repeat items 1-2. A new fault code is flashed ou tif more are stored. Repeat until the first fault code is repeated.

NOTICE! When the first fault code reoccurs, all the fault codes have been read.

If the diagnostics button is depressed after the fault has been corrected and the fault code deleted, the code 1.1, No fault, will be shown.

 

Reading fault codes via an “Easylink” instrument When the system has discovered a malfunction, this is reported by the diagnostic lamp which starts to flash.

1 Press the diagnostic button. The fault code is shown as text on the tachometer display.

2 Look up the fault code in the Fault Code Register chapter and take the recommended measures.

3 When the fault has been rectified, the fault code disappears from the display and the diagnostic

lamp goes out.

 

Erasing fault codes

Fault codes must be erased by an authorized Volvo Penta workshop by means of the VODIA tool.

Fault Code Register

 

CAUTION!

Read through the safety advice before starting any work.

The fault codes below comprise:

- a fault text message displayed when a DCU or DU is installed.

- a flash code, e.g. 5.4, read off from the diagnostics lamp; refer to Calibration and Settings page 72

- a fault code, e.g. PID 45, read off from the VODIA tool.

For references to sleeves in electrical connectors, refer to System Information page 33

 

No fault (Code 1.1)

Cause

Reaction

Remedy

There are no active faults.

Exhaust Temperature (Code 1.9, PID 173/SPN 1184)

Cause

Reaction

Remedy

Exhaust temperature to high

• Warning lamp lights up

• Engine is shutdown

• Insufficient air supply

• Low coolant level

• Air in the coolant system

• Faulty circulation pump

• Blocked charge air cooler

• High temperature, charge aircooler

• High back pressure in the

exhaust system

• Check wastegate function

Water in Fuel (Code 2.1, PID/SPN 97)

Cause

Reaction

Remedy

Water in fuel

None

Empty the primary fuel filter

Coolant Level (Code 2.2, PID/SPN 111)

Cause

Reaction

Remedy

Low coolant level

Engine control module

reduces engine power

(unless the protection has

been shut off with the VODIA

diagnostic tool)

Check the coolant level

Check coolant level monitor

function

Coolant Level Sensor (Code 2.3, PID/SPN 111)

Cause

Reaction

Remedy

Short circuit to positive (+)

• Fault in sensor

None

Check that the coolant level

sensor cable is not damaged

Check coolant level sensor

function

Flywheel Speed Sensor (Code 2.4, SID 22/SPN 637)

Cause

Reaction

Remedy

No signal

• Abnormal frequency

• “Intermittent” signal from the

sensor

• Fault in sensor

Engine is very difficult to start

and runs roughly when it

starts

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 housing

• Check engine speed sensor

function

Camshaft Drive Speed Sensor (Code 2.5, SID21/SPN 636)

Cause

Reaction

Remedy

No signal

Abnormal frequency

Fault in sensor

Engine takes longer to start

than normal. Engine runs normally

when running

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.

Engine Speed (Code 2.6, PID/SPN 190)

Cause

Reaction

Remedy

Shorted to plus (+) or minus

(-)

• Fault in sensor

Engine goes to idle

• Speed feezes

After the engine has stopped,

look for the reason for the high

speed

Indicator for Water in Fuel (Code 2.9, PID/SPN 97)

Cause

Reaction

Remedy

Short circuit

• Open circuit

• Fault in indicator

None

• Check the indicator cables for

breaks and short circuits

• Check indicator function.

Change indicator as necessary

 

Contact Us
  • Add.: Room 601, Laboratory Building, No.2 Gaohua Road, Nanning, Guangxi, China.
  • Tel.: +86 771 5805 269
  • Fax: +86 771 5805 259
  • Cellphone: +86 134 8102 4441
                    +86 138 7819 8542
  • E-mail: sales@dieselgeneratortech.com
Follow Us

Copyright © Guangxi Dingbo Power Equipment Manufacturing Co., Ltd. All Rights Reserved | Sitemap

Contact Us