Volvo Link System Reference manual

Service Bulletin

Volvo Trucks North America, Inc.

Greensboro, NC USA

Date Group No. Page

3.2002 397 001 1(32)

Trucks

Volvo Link System

Design and Troubleshooting

Satellite Communication System

W3004840

Volvo Link ECU

The Volvo Link System provides satellite communications between a driver and ﬂeet. It

includes the Volvo Link ECU, GPS antenna, cable, and wiring harnesses. Some vehi-

cles also include a dash switch. This system allows communications between Volvo’s

Web based (ﬂeet) software and the vehicle.

This information includes design and troubleshooting of the vehicle portion of the sys-

tem. For repair procedures, see service procedures in group 397. For ﬂeet software

troubleshooting, see the software help ﬁle.

This information contains:

•

“System Operation” page 3

•

“Simpliﬁed Schematic” page 12

•

“System Deﬁnitions” page 13

•

“MID 142 Satellite Communication” page 14

PV776-TSP156441 USA10063

Page 2

Tools

Special Tools

See the special tool information in group 08 for ordering

instructions.

J-39200

Fluke Multimeter J-43234

30-pin Breakout Harness 9998551 with J-43340

60-pin Breakout Box with Overlay

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

Service Bulletin 3.2002 397 001 3(32)

Design and Function

System Operation

The Volvo Link System provides satellite communications between the driver and his

ﬂeet home base. The hardware/software that is installed on the vehicle is discussed in

this bulletin. In order for the ﬂeet home base to utilize the system, it must subscribe to

a web based service through Volvo. For information on the web based application and

subscription service, see the Volvo web site at

www.volvotrucks.us.com and look under the “Services”category.

The Volvo Link ECU is programmed differently for Cummins and Volvo engines. At the

time of the original installation in the vehicle, the Volvo Link ECU acquires the Vehicle

Identiﬁcation Number (VIN) of the vehicle in which it is installed. Replacement of the

ECU with one from another vehicle will not work. System checks within the ECU soft-

ware will recognize that the ECU is not in the proper vehicle and generate a notiﬁcation

message. The Volvo Link ECU is connected to the J1587/1708 Information Data Link.

Incoming and outgoing messages are read on the instrument cluster graphic display

screen. Messages are sent and received through the vehicle’s radio antenna system.

The vehicle location is identiﬁed through a Global Positioning System (GPS) antenna

located in the passenger side mirror head. The ORBCOMM network of Low-Earth Orbit

satellites relays information between the vehicle and ﬂeet.

Some vehicles may be equipped with a “Volvo Action Service”switch that, when acti-

vated, will send a message to Volvo requesting assistance and providing the vehicle

location.

Page 4

System Diagram

W3004841

Volvo Link System

AMultiplex Whip Antennas

BRAMI Antenna Multiplexer box

CGPS Antenna

D* Volvo Action Service Dash Switch

E* Switch Illumination

FRadio

*Switch is not available in all vehicles.

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

Service Bulletin 3.2002 397 001 5(32)

Sending and Receiving Messages

The system has the ability to send brief text messages

to and from the vehicle, similar to an e-mail system. It

uses the vehicle’s graphic display in the instrument clus-

ter for viewing and entering the messages.

The controls for the graphic display are the 4 buttons in

the stalk switch on the right side of the steering column.

1“Esc”(Escape) is used to return to the previous

menu and cancel a setting/operation.

2“↵”or “SELECT”conﬁrms a highlighted selection of

a menu or character.

3“Up arrow”moves the cursor up and is used when

setting alpha-numeric values.

4“Down arrow”moves the cursor down and is used

when setting alpha-numeric values.

For more information on using the graphic display con-

trols, see the Operator’s Manual, or service information

on “Instrumentation”in group 38.

T3008810

Using the Graphic Display

1 The Volvo Link menu should be the ﬁrst item shown

in the graphic display. Use the up/down buttons to

highlight it.

2 Press ↵to select Volvo Link.

3 After selecting Volvo Link, another screen will pop

up, offering the choice to send or read messages.

4 For instructions on sending and receiving mes-

sages, see the following:

•“Sending Messages from the Vehicle”page 8

•“Incoming Message Notiﬁcation from Fleet”

page 6

•“Quick Response to Incoming Messages”page

•“Viewing Messages”page 7.

VOLVO LINK

GAUGES

FUEL ECONOMY

TIME/DIST

Read Messages

Send Messages

Page 6

Incoming Message Notiﬁcation from Fleet

Messages are received at the vehicle from the ﬂeet operator. When a message is re-

ceived by the Volvo Link ECU, the driver will be notiﬁed with the INFO lamp and a

message in the instrument cluster’s graphic display. The message will appear one of

the two following ways:

New Message in Volvo Link

Priority Message in Volvo Link

If in a driving situation where it is safe to do so, the driver can press the Esc button

when he/she sees the message.

Pressing the Esc button turns off the INFO lamp.

The driver can read the “New Message”the next time he stops the vehicle. Or the

driver can read a “Priority Message”while driving, provided the vehicle speed is below

55 mph.

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

Service Bulletin 3.2002 397 001 7(32)

Viewing Messages

To view all stored messages, select “Volvo Link,”then “Read Messages”in the cluster’s

graphic display.

The messages will display, one at a time, with the most recent message shown ﬁrst.

Once the newest message is displayed, the driver can use the Up/Down buttons to

scroll through the other messages.

Up goes to the next (newer) message. If the newest message is being displayed, the

Up button wraps back to the oldest message.

Down goes to the previous (older) message. If the oldest message is being displayed,

the Down button wraps back to the newest message.

The message buffer will hold 5 messages. If the buffer is full and a new message is re-

ceived, the oldest message will be deleted.

While the vehicle is moving, the last message received is the only one that can be dis-

played, and only if it is a “Priority Message.”

If the driver has access or priority to see the message while driving, the message is

displayed. If not, the driver will see a message directing him to:

Stop Vehicle to Read Message

Quick Response to Incoming Messages

The driver has the option of a Quick Response to the most recent message in the

queue.

The quick response can be sent while driving.

From the message display screen, press ↵to access the Quick Response menu.

The Quick Response uses pre-deﬁned text:

Yes/OK

Respond @ Next Stop

Page 8

Sending Messages from the Vehicle

The driver of the vehicle can send messages from the vehicle to the ﬂeet. Messages

can be sent when the vehicle is stopped, but not while it is moving. If you attempt to

send a message when the vehicle is moving, an error message will display, and the

message will not be sent.

The driver can send 3 types of messages, as shown below. These options are se-

lectable from the graphic display.

•Deﬁned Text

•Breakdown

•Free Text

The Deﬁned and Breakdown message lists have approximately 10 message options

within each menu.

Deﬁned Text messages:

Load picked up

Load delivered

Late: less than 1 h

Late: more than 1 h

Company deﬁned 1

Company deﬁned 2

Company deﬁned 3

Company deﬁned 4

Company deﬁned 5

Breakdown messages:

This allows the driver to send breakdown messages along with the vehicle’s GPS loca-

tion back to his ﬂeet, which can then help the driver by sending a service vehicle to his

location.

Towing needed

Tractor tire

Tractor electrical

Tractor air supply

Tractor drive train

Tractor others

Trailer tire

Trailer electrical

Trailer air supply

Trailer axles

Trailer others

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

Service Bulletin 3.2002 397 001 9(32)

Free Text:

Free text messages are sent as follows:

Select Free Text in the graphic display.

From the blank screen with a cursor, use the up/down arrows to scroll through the

numbers 0–9 and the alphabet to create your message, one character at a time.

Note: using the up arrow, you will scroll through 0–9, then A-Z. Using the down ar-

row, the order is reversed, and you will see Z-A, then 9–0.

For the ﬁrst character, scroll up or down until you reach the letter/number desired,

then press the ↵button. Repeat for each character.

When ﬁnished with the message, press the ↵button and hold for 3 seconds to

send.

Note: if you make a mistake, press Esc to go back to the previous character. To

cancel sending a typed message, press Esc until the message is cleared from the

screen.

After a Message is Sent

After a message is sent, one of the following conﬁrmations will appear on screen:

Message Sent

Sending Not Allowed

No Subscription

Message Sent conﬁrms that the message was sent by the ECU.

If Sending Not Allowed shows on screen, the message was not sent. The reason for

this failure may be that the system is busy. Wait brieﬂy and try sending the message

again. It may also be an indication that the Volvo Link ECU has been placed in the

wrong vehicle (see “Cannot Send or Receive Messages, but No Fault Code”page 31

for more information).

No Subscription indicates that messaging capabilities have been disabled by the ﬂeet.

If Operation Failed appears on screen during an attempt to send a message, this is

either an indication of network congestion, or a system failure. See “MID 142 Satellite

Communication”page 14 for more information.

Page 10

Vehicle Log Data

Total miles, Total Idle Fuel used, Total Fuel used, Total Engine Idle hours, Total Engine

hours, Vehicle Location (GPS).

This data can be requested by the Web or can be set up in the Volvo Link ECU to be

sent at predetermined time intervals.

Data is recorded using the J1587/1708 data link on the vehicle.

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