DAF 95XF. Manual - part 208

©

 200438

2-1

ECAS-3 customer parameters

ECAS-3

DAVIE XD diagnostics manual 

13

2. ECAS-3 CUSTOMER PARAMETERS

2.1 INTRODUCTION

Customer parameters
Customer parameters are the settings of an 

electronic system. The customer parameters 

permit adapting control functions of a system to 

the customer's particular wishes and/or needs 

within certain limits. The customer parameters 

are stored in a list in the memory of the electronic 

unit. Customer parameters can be modified using 

the programming feature of DAVIE XD. 

Programming using DAVIE XD is only possible if 

the logged-in user has been registered as a 

"Master Technician".

Note:

Erroneous settings of customer parameters may 

affect the action of control functions to such an 

extent that they function eratically or not at all. 

After modification of the settings the (modified) 

customer parameters must be stored in the 

electronic unit using the programming function in 

the customer parameter overview.

Customer parameter names and codes
Each customer parameter in a system has its 

own name and code. The following explanation of 

the customer parameters includes only the 

codes. The availability of a customer parameter 

in a system depends on the programmed 

software in the electronic unit. The programmed 

software depends on the vehicle configuration/

identity card data.

Standard values
Standard values, options and setting ranges may 

vary according to the software variants of 

DAVIE XD and the system. This is why they have 

not been included in the following explanation of 

the customer parameters.

ECAS-3

2-2

©

 200438

ECAS-3 customer parameters

DAVIE XD diagnostics manual

13

2.2

E

X

P

LANATORY

 NOTES

 TO ECAS-3

 CUSTOME

R

 PARAME

TERS

ECAS

-3 

c

u

sto

m

er

 

para

meter

 c

o

de

Exp

la

n

atio

n

D

e

p

en

de

nc

es:

Notes

Minimum 

va

lu

e to be

 

se

t:

Ma

ximum 

value

 to

 b

e 

set:

4

-0

1

Wi

th

 thi

s 

p

arameter the protection

 fo

r e

m

p

ty be

llow

s ca

n 

be

 swi

tche

d on or off.

When

 the

 p

rote

cti

on is switched off, there is no resid

ual

 

pressure in the air be

llow

s so that 

'p

leating

' of 

the

 

bell

ows is 

n

o long

er prevented

.

4

-0

2

T

his parameter makes it 

po

ssible

 to increa

se th

e 

tolera

nce fi

eld (hysteresis) 

of the

 sen

sor se

nsitivity.

Thi

s 

is a

 solu

tion 

if a 

cu

sto

m

e

r compla

ins a

bou

t unstabl

e 

re

gul

ati

on by ECAS-3. If a larg

er 

tol

erance

 fiel

d is 

ch

osen, th

e heig

ht 

cha

nge

 o

f th

e chassis must be

 

increase

d to al

low ECAS 

to make a correction.

4

-0

3

T

his parameter ena

ble

s a certain

 veh

icle slan

t to be 

redu

ced or increa

se

d.

Redu

ctio

n ma

kes 

the

 veh

icle stand stra

igh

te

r (if 

the

 

ca

libra

tion is correct, i.e

. the

 sa

me hei

ght left and ri

ght).

Incre

ase will

 make the vehi

cle slant fu

rth

er, thereb

y 

enab

ling

 u

nstable

 h

orizontal

 setting

s 

to 

be 

preve

nte

d.

4

-0

4

T

he time of th

e de

lay setti

ng can

 be le

ngthe

ned w

ith

 th

is 

par

a

meter.

4

-0

5

T

his parameter rela

tes to 

th

e 

storag

e of 

faul

ts in the 

el

ectro

nic unit on the action of admitting ai

r to or 

exha

usting 

ai

r 

from the

 ai

r b

ello

ws.

A 

fa

ult is i

den

tifie

d if the

 hei

ght sen

sor read

ing

 doe

s not 

ch

ang

e d

uring

 the

 p

ro

grammed 

time 

whil

e i

t shou

ld 

have do

ne becau

se of 

the de

sired action

. Th

is 

time can

 

be lengthened with this 

pa

rameter. The 

ECAS system 

the

n waits long

er 

b

efore sto

ring the fa

ult becau

se 

the

 

heig

ht 

sen

sor 

re

adin

g has not ch

ang

ed.

©

 200438

3-1

System inspection with DAVIE XD

ECAS-3

DAVIE XD diagnostics manual 

13

3. SYSTEM INSPECTION WITH DAVIE XD

3.1 CALIBRATING THE SENSORS

The sensors must be calibrated if the height 

sensors or the ECAS unit are replaced.

Note:

Calibration should be carried out with due care to 

avoid physical injury and material damage.

When calibrating, the maximum desired chassis 

height at the rear axle and the maximum desired 

chassis height at the front axle must be 

calibrated.

Notes to sensor calibration
1.

Place the gauges between the driven axle 

and the chassis.

2.

Lower the chassis using DAVIE until it rests 

on the gauges.

Note:

-

On vehicles with an air-sprung front axle 

a gauge must also be placed between 

the axle and the chassis.

3.

Now bring the chassis to the desired 

maximum height at the front axle.

Then bring the chassis to the desired 

maximum height at the rear axle.

Note:

The maximum height of the chassis is limited 

by the mechanical stop of the shock 

absorber.

The shock absorber of the non-driven axle 

may reach its stop before the shock absorber 

of the driven axle.

ECAS-3

3-2

©

 200438

System inspection with DAVIE XD

13

DAVIE XD diagnostics manual

3.2 INSPECTION OF HEIGHT SENSORS

1.

Admit air to the bellows. The value indicated 

by DAVIE must now show a linear increase.

2.

Exhaust air from the bellows. The value 

indicated by DAVIE must now show a linear 

decrease.

Note:

If two height sensors are used, these two 

sensors, with the vehicle at the driving level, may 

give a different reading (caused, for example, by 

play in the linkage). This may result in the vehicle 

not being level. This can be solved by 

recalibrating the sensors.