Iveco Stralis AT/AD. Manual - part 247

SECTION I
ABS-EBS system troubleshooting can be performed with the Cluster or with the diagnosis instruments Modus, IWT and IT 2000.

Diagnosis with the cluster makes it possible to estimate the situation of faults in the system in advance, while the diagnosis instruments
are essential to perform thorough diagnosis and operate on the single faults correctly.

Each single instrument displays the diagnosis and repair help.

Diagnosis Instruments

MODUS (Maintenance and Diagnostic System)
A computerized fault-diagnosis station dedicated to diagnosing the brake systems, air suspensions, engines and systems controlled
electronically.

The station is equipped with auxiliary functions, such as: programming electronic control units, consulting the spare parts catalogue
and service time schedules.

The vehicle has a 30-pin diagnosis socket to interface with the instrument.

IWT (IVECO Wiring Tester)
The IVECO Wiring Tester expands and integrates MODUS.

This instrument is made by IVECO to improve fault diagnosis of vehicle electric and electronic systems.

The vehicle has a 30-pin diagnosis socket to interface with the instrument; the connection between the instrument and the diagnosis
socket must be made with the cable identified as no. 4.

IT 2000 (IVECO Electronic Tester)
This makes it possible to take immediate action on the vehicle, identifying it with the chassis number.

It saves the results of diagnostics actions performed.

It can be used as a portable Personal Computer, too, being fitted for remote diagnosis.

By using MODUS as the mother station it is possible to update and configure the IT 2000.

IT 2000 interfaces with the vehicle via a 30-pin diagnosis socket.

The diagnosis socket is positioned in central panel lower side in the cab (at passenger side).

TRALIS

AT/AD

AIR SYSTEM - BRAKES

Base - January 2003

74375

Figure 39

Cluster Diagnosis

It is possible to access the fault memory with the ”menu” function key 2 on the steering wheel.

With the ignition key on MAR (+15), press the ”menu” function key 2; the display will show a dialogue menu containing a list of
the available functions (e.g., Hi-Fi, phone, diagnostics, etc.).

With the y

I and I b function keys, select the diagnosis function and confirm the selection with the ”OK” function key 2.

Select the ABS-EBS system with the select/confirm keys 1 and 2.

The cluster will display the first diagnostics screen.

After selecting the system, EuroTronic is displayed on a red or green background depending on whether there is any trouble.

Figure 40

74388

The diagnosis information shown on the cluster is split up on two screens:

- On the first one, it is possible to consult and scroll through all saved/present trouble.

- On the second one, it is possible to delete the intermittent errors (when you have the relevant password).

AIR SYSTEM - BRAKES

TRALIS

AT/AD

74389

Figure 41

FIRST SCREEN

Figure 42

74390

Entering the Password

Select the first number of the password with the y I and I b keys.
Press OK to confirm each number.
Press a to delete the last number selected.
On completing the password, select the key symbol to confirm.

Figure 43

74378a

TRALIS

AT/AD

AIR SYSTEM - BRAKES

Base - January 2003

DTC

FMI

ACT

Displays the fault code number Indicates the type of fault

Fault frequency meter

Fault active/not active status

Two digits (hexadecimal)

Three digits (hexadecimal)

One character (Y = Yes, N =
No)

Troubleshooting via DTC-FMI codes described under the relevant section completes the above information. Each pair of DTC-FMI
codes is associated with a description of the fault, the possible system reaction and recommended repairs with the relevant checks.

SECOND SCREEN
Deleting Errors
To select the second screen, press ”page” on the steering wheel.
The fault display is eliminated as follows:
- Press ”+”, on the request to confirm deletion, press OK.
- Enter the required password (see the ENTERING PASSWORD paragraph).
- Press OK to confirm.

—

Parking brake release delayed.

—

Trailer parking brake release delayed.

—

The vehicle skids when braking.

10 —

Insufficient trailer retarder braking.

11 —

Early wear of the brake linings.

12 —

Brake system warning light on.

13 —

Parking brake indicator light on with lever in driving
position.

14 —

Noisy brakes.

POOR OR ABNORMAL

SYSTEM CHARGE

Main operating trouble of the brake system:

—

Poor or abnormal system charge.

—

Poor or abnormal service braking of the rear axle.

—

Poor or abnormal service braking of the front axle.

—

Poor or abnormal trailer service braking.

—

Poor or no parking braking.

—

Poor or no trailer parking braking.

Inefficient air compressor operation

Overhaul or replace the air compressor.

Air system pipes leak or burst

Close or replace the worn or damaged fittings. Re-
place the burst or damaged pipes.

YES

Inefficient A.P.U. operation

Overhaul or replace the A.P.U.

(continued)

POOR OR ABNORMAL SERVICE

BRAKING OF THE REAR AXLE

YES

Air system pipes leak or burst

Close or replace the worn or damaged fittings. Replace
the burst or damaged pipes.

Electric and electronic components diagnosis must be through Modus and IWT.

AIR SYSTEM - BRAKES

TRALIS

AT/AD

SECTION 2

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