PV776-20009359

Service BulletinVolvo Trucks North America, Inc.Greensboro, NC USA

Date Group No. Page

12.2004 366 10 1(7)

Trucks

Instrument ClusterImmobilizer

VN, VHD VERSION2

Immobilizer FeatureThe Immobilizer is a theft deterrent feature, associated with the Instrument Cluster, forVN, VHD VERSION2 vehicles.

This information contains:

• “Immobilizer” page 2• “Immobilizer, Programming” page 3• “Immobilizer Pin Code, Changing” page 7

Note: Information is subject to change without notice.Illustrations are used for reference only and may differ slightly from the actualvehicle being serviced. However, key components addressed in this information arerepresented as accurately as possible.

PV776-20 009359 USA15302

Volvo Trucks North America, Inc. Date Group No. Page

Service Bulletin 12.2004 366 10 2(7)

ImmobilizerThe "Immobilizer" is a simple theft-deterrent featurethat, when enabled, can prevent a Volvo engine fromunauthorized starting.

Each time the vehicle is keyed off, the Driver InstrumentDisplay (DID) displays a message for 15 secondsrequesting a password to enable the Immobilizer.

If the PIN code is not entered during the 15 seconds afterkey-off, the Immobilizer remains disabled, and the vehiclecan be started normally at next key-on.

If the driver wants to enable the Immobilizer, he or sheenters a 3-digit code (PIN code) into the DID using thestalk switch; this code activates the anti-theft function.After the password is entered, the DID will display"Security Code Active," indicating that the Immobilizerhas been enabled.

When the Immobilizer is enabled, a driver will be ableto start the vehicle only after entering the correct 3-digitPIN code into the DID using the stalk switch. The driverwill be prompted for the PIN code until the correct 3-digitcode is entered.

If an incorrect code is entered, or if the engine is crankedbefore the correct password is entered, the engine will runfor only about 5 seconds. The INFO light will illuminateand the "Check Engine" message will be displayed. Theignition key must then be cycled OFF and back ON toreset this message and enter the correct password.

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3669-22-02-01Immobilizer, Programming

See also:

• “Immobilizer Feature” page 1

You must read and understand the precautions andguidelines in Service Information, group 3, "GeneralSafety Practices, Electrical and Electronics" beforeperforming this procedure. If you are not properlytrained and certified in this procedure, ask yoursupervisor for training before you perform it.

OverviewIn order to configure the engine immobilizer feature,four steps are required:

• Determine if the vehicle is properly equipped forthe feature.

• Perform Immobilizer Accessory Kit Programming

• Reprogram the Engine ECU.

• Reprogram the Instrument Cluster.

• Configure the values for 2 parameters.

Vehicle Equipment RequiredEngine: The Engine Immobilizer feature is available onlyfor VERSION2 vehicles with Volvo engines.Instrument Cluster: The Engine Immobilizer featurecannot be used on vehicles with the Basic InstrumentCluster. This feature requires the vehicle to be equippedwith the Medium or High-level Instrument Cluster.

Accessory Kit, Programming1Start the VCADS Pro application and connect the PC tothe vehicle’s communication connector.

2Identify the vehicle within the application and select the’Conversion Kit’ operation from the Function Group1 section of the menu.

3Connect the PC to a communication line (telephone ornetwork) and start the operation.



4Select the ’Accessory Kit’ option when it becomesavailable and enter ’85108353’ into the space provided.

Note: A connection to the Volvo Central Systems ismade to check for available conversion kits before the’Accessory Kit’ option becomes available. Do not selectany of the available conversion kits that are shown in thelower section of the window.

5To connect to the Volvo Central Systems, enter adigipass-generated password, or static passwordwhen requested. When the operation has completedsuccessfully, the remaining programming operationscan be carried out.

Note: Completion of the Accessory Kit Programming isrequired before reprogramming of the Engine ECU (MID128) and Instrument Cluster (MID 140) is carried out.



Engine ECU, Programming1Select ’MID 128 ECU Programming’ from the FunctionGroup 2 menu in VCADS Pro.

2Start the programming operation and follow theinstructional prompts that appear during the process tocomplete the programming.

Instrument Cluster, Programming1Select ’MID 140 ECU Programming’ from the FunctionGroup 3 menu in VCADS Pro.

2Start the programming operation and follow theinstructional prompts that appear during the process tocomplete the programming.

Parameter ProgrammingAfter reprogramming of the Instrument Cluster hasbeen completed, two Instrument Cluster (MID 140)parameters must be programmed in order to activate andconfigure the Engine Immobilizer feature. Parameters tobe programmed:

• DYF- Immobilizer Menu Enable

• DUR- Immobilizer Pin Code

1Select Parameter Programming from the Function Group1 section of the menu.

Note: If using Group View: Select the Instrumentsgroup.

Note: If using MID View: Select 140 Instrument,Center Module .

2Locate parameter DYF (Immobilizer Menu Enable) in theparameter list, and select it by double-clicking or clickingDYF and pressing the Enter key.

3Set the value to "1".

4Press the Enter key.

5Locate parameter DUR (Immobilizer Pin Code) in theparameter list, and select it by double-clicking or clickingDUR and pressing the Enter key.



6Set the value to the desired three-digit pin code to beused for Engine Immobilizer Control.

7Press the Enter key.

8After making the parameter changes described above,press the Continue button, located in the upper section ofthe parameter programming window. Review and confirmthe parameter changes by pressing the Program button.Connect the PC to an appropriate communication source(a telephone line or network connection) and enter agenerated password from digipass or the static password.

9Press the OK button.

Note: A connection is made to the Volvo CentralSystems. When this connection is completed, stop andclose the parameter programming operation, followingany instructional prompts that may appear.



3669-22-03-03Immobilizer Pin Code, Changing

See also:

• “Immobilizer Feature” page 1

You must read and understand the precautions andguidelines in Service Information, group 3, "GeneralSafety Practices, Electrical and Electronics" beforeperforming this procedure. If you are not properlytrained and certified in this procedure, ask yoursupervisor for training before you perform it.

To change the Instrument Cluster’s Immobilizer PINcode, change the value of the parameter DUR throughparameter programming using VCADS Pro. To makethis change:

1Select the Parameter Programming from the FunctionGroup 1 section of the menu.

• If using the Group view, select the Instruments group.

• If using the MID view, select the 140 Instrument,Center Module .

2Locate parameter DUR (Immobilizer PIN Code) inthe parameter list, and select it by double-clicking theparameter and pressing the Enter key.

• Set the value to the desired three-digit pin code to beused for the Engine Immobilizer control.

• Press the Enter key.

3After making the parameter changes described above,press the Continue button, located in the upper section ofthe parameter programming window. Review and confirmthe parameter changes by pressing the Program button.

4Connect the PC to an appropriate communication source(telephone line or network connection) and enter agenerated password from your digipass or your staticpassword. A connection is made to the Volvo CentralSystems. When this connection is completed, stop andclose the parameter programming operation, followingany instructional prompts that may appear.

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PV776-20009359