DAF 95XF. Manual — part 192

©

200438

1-5

ECAS-2 fault codes

ECAS-2

DAVIE XD diagnostics manual

8

51

Fault message while lifting rear axle, left
-

Mechanical ECAS valve failure (B253)

-

Internal height sensor failure (F612)

-

Mechanical height sensor failure (F612)

-

Interruption of ECAS valve earth
connection (B253)

-

Interruption on pin 15 of the ECU

-

Only fault message if ECAS is active

-

Difference in height level on left and right
side

-

Driving height is not reached

-

No rear axle chassis height control

52

Fault message while lifting front axle
-

Mechanical front axle ECAS valve failure
(B166)

-

Internal height sensor failure (F614)

-

Mechanical height sensor failure (F614)

-

Interruption of ECAS valve earth
connection (B166)

-

Interruption on pin 15 of the ECU

-

No chassis height control, front axle

-

Only fault message if ECAS is active

-

No chassis height control

60

Fault message while lowering rear axle, right
-

Mechanical ECAS valve failure (B253)

-

Internal height sensor failure (F613)

-

Mechanical height sensor failure (F613)

-

Interruption of ECAS valve earth
connection (B253)

-

Interruption on pin 15 of the ECU

-

Only fault message if ECAS is active

-

Difference in height level on left and right
side

-

Driving height is not reached

-

No rear axle chassis height control

61

Fault message while lowering rear axle, left
-

Mechanical ECAS valve failure (B253)

-

Internal height sensor failure (F612)

-

Mechanical height sensor failure (F612)

-

Interruption of ECAS valve earth
connection (B253)

-

Interruption on pin 15 of the ECU

-

Only fault message if ECAS is active

-

Difference in height level on left and right
side

-

Driving height is not reached

-

No rear axle chassis height control

62

Fault message while lowering front axle
-

Mechanical front axle ECAS valve failure
(B166)

-

Internal height sensor failure (F614)

-

Mechanical height sensor failure (F614)

-

Interruption of ECAS valve earth
connection (B166)

-

No chassis height control, front axle

-

Only fault message if ECAS is active

-

No chassis height control

80

Internal Wabco software failure

81

No speed signal
-

Interruption or short circuit to supply on pin
22 of the ECU

-

No noticeable system limitation

Fault code

Fault code description with possible cause

System response

ECAS-2

1-6

©

200438

ECAS-2 fault codes

8

DAVIE XD diagnostics manual

©

200438

2-1

ECAS-2 customer parameters

ECAS-2

DAVIE XD diagnostics manual

8

2. ECAS-2 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-2

2-2

©

200438

ECAS-2 customer parameters

DAVIE XD diagnostics manual

8

2.2

E

X

P

LANATORY

NOTES

TO ECAS-2

CUSTOME

R

PARAME

TERS

ECA

S

Cu

stom

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

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-2. 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

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.

4-

06

Th

is

p

ar

am

et

er

en

ab

le

s a

n

in

cre

as

e o

r d

ec

re

as

e o

f t

he

correction

o

f th

e normal dri

vi

ng leve

l,

wh

ich is

ma

de

whe

n th

e lifti

ng axle is raise

d.

An

in

crease wil

l correct the no

rmal

d

riving

le

vel more

when

the

axle

is

be

ing

rai

sed.

The

vehicle may exceed

the maximum permissible

heig

ht.

A de

cre

ase will

co

rre

ct th

e normal dri

vi

ng leve

l less

o

r

not

a

t all

w

hen the axle

is

be

ing rai

se

d.

The

grou

nd

cleara

nce ca

n be

come so

small

th

at the 3

rd

axle,

when

rai

sed, re

gula

rly tou

ch

es

a b

umpy

road

su

rf

a

ce

.