Iveco Daily Euro 4. Manual — part 209
SECTION I
Faults affecting the ABS/ESP systems can be found by means of the Modus, E.A.SY. and IT 2000 diagnosis instruments.
These instruments are necessary to perform exhaustive diagnosis and take appropriate measures as regards every single fault.
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.
E.A.SY. (Electronic Advance System)
The E.A.SY. system allows you to easily diagnose and program the various electronic control units fitted to the vehicle. It is made
up of an ECI module for communication with the electronic control units and a Panasonic PC.
The ECI module allows you, by taking advantage of the Panasonic PC, to easily carry out work on the road; in particular, diagnostic
work can be assisted by a specialized remote centre, thanks to the wireless technology incorporated into the Panasonic PC (e.g.
GPRS).
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.
38
HYDRO-PNEUMATIC SYSTEM - BRAKES
D
AILY
E
URO
4
YES
Main operating faults in the brake system:
1 - Rear axle service brake is inefficient or irregular
2 - Front axle service brake is inefficient or irregular
3 - Inefficient or no parking brake
4 - Delayed action of parking brake
5 - Vehicle skids when braking
6 - Rapid brake lining wear
7 - Too long or abnormal travel of brake pedal
8 - Noisy brakes
NO
Leaks or breakage in pneumatic system pipes.
Tighten or replace damaged fittings. Replace broken or
damaged pipes.
Worn or vitrified brake linings.
Overhaul or replace the brake linings.
Automatic clearance device is faulty (caliper 1x52).
Replace the brake caliper.
Overhaul the rear brakes, replacing worn parts.
Rear brakes are faulty.
Servo brake is faulty.
Overhaul or replace servo brake
YES
NO
1
YES
NO
YES
NO
YES
NO
YES
(Continue)
REAR AXLE SERVICE BRAKE IS
INEFFICIENT OR IRREGULAR
Load proportioning valve is faulty (vehicles without
ABS).
Adjust
and,
if
necessary,
replace
the
load
proportioning valve.
HYDRO-PNEUMATIC SYSTEM - BRAKES
39
D
AILY
E
URO
4
YES
NO
2
YES
NO
YES
(Continue)
YES
NO
Brake liquid has not been periodically changed.
Replace brake liquid.
Presence of air in hydraulic system
Bleed-off any air from hydraulic system.
Leaks or breakage in pneumatic system pipes.
Tighten or replace loose or damaged fittings. Replace
broken or damaged pipes.
Worn or vitrified brake linings.
Overhaul or replace the brake linings.
YES
NO
YES
YES
NO
Servo brake is faulty.
Overhaul or replace servo brake
Brake caliper is faulty.
Overhaul and, if necessary, replace brake caliper.
FRONT AXLE SERVICE BRAKE IS
INEFFICIENT OR IRREGULAR
ABS system is faulty.
Make diagnosis with Modus.
40
HYDRO-PNEUMATIC SYSTEM - BRAKES
D
AILY
E
URO
4
YES
YES
NO
Brake liquid has not been periodically changed.
Replace brake liquid.
Presence of air in hydraulic system.
Bleed-off any air from hydraulic plant.
Worn or vitrified brake linings.
Overhaul or replace the brake linings.
Rear brakes are faulty.
Overhaul the brakes and replace any worn parts.
YES
NO
YES
NO
YES
NO
YES
3
Tie-rods are faulty.
Adjust or overhaul tie-rods and replace any worn
parts.
YES
NO
Front brakes are faulty.
Overhaul and, if necessary, replace any worn parts.
INEFFICIENT OR
NO PARKING BRAKE
ABS system is faulty.
Make diagnosis with Modus.
HYDRO-PNEUMATIC SYSTEM - BRAKES
41
D
AILY
E
URO
4
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