DAF 95XF. Manual — part 158

©

200438

1-5

EBS fault codes

EBS

DAVIE XD diagnostics manual

1

22-45

Incorrect wheel speed sensor sine-wave signal
from wheel speed sensor (F512) on pins D7 and
D8 of the EBS unit due to:
-

distorted wheel speed sensor ring

-

damaged wheel speed sensor ring

-

ABS on front axle, left deactivated

-

ASR brake/engine control deactivated

22-46

No uniformity (frequency changes) of wheel
speed sensor signal from wheel speed sensor
(F512) on pins D7 and D8 of the EBS unit due to:
-

heavy point due to brake disc wobble, for
example

-

ABS on front axle, left deactivated

-

ASR brake/engine control deactivated

22-47

Excessive oscillation of wheel speed sensor
signal (maximum/minimum level) from wheel
speed sensor (F512) on pins D7 and D8 of the
EBS unit due to:
-

excessive wheel bearing play

-

incorrect mounting of wheel speed sensor
ring

-

ABS on front axle, left deactivated

-

ASR brake/engine control deactivated

22-48

Minimum value of wheel speed sensor signal
from wheel speed sensor (F512) on pins D7 and
D8 of the EBS unit is too low due to:
-

too large an air gap between wheel speed
sensor ring and wheel speed sensor

-

contact resistance on pin D7 and/or D8 of
the EBS unit

-

ABS on front axle, left deactivated

-

ASR brake/engine control deactivated

23-37

Interruption on pin B1 and/or B2 of the rear axle
modulator (D879), wheel speed sensor (F515)

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-41

Short circuit to earth on pin B1 and/or B2 of the
rear axle modulator (D879), wheel speed sensor
(F515)

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-42

Short circuit to supply on pin B1 and/or B2 of the
rear axle modulator (D879), wheel speed sensor
(F515)

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-44

Short circuit between pins B1 and B2 of the rear
axle modulator (D879), wheel speed sensor
(F515)

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-45

Incorrect wheel speed sensor sine-wave signal
from wheel speed sensor (F515) on pins B1 and
B2 of the rear axle modulator (D879) due to:
-

distorted wheel speed sensor ring

-

damaged wheel speed sensor ring

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-46

No uniformity (frequency changes) of wheel
speed sensor signal from wheel speed sensor
(F515) on pins B1 and B2 of the rear axle
modulator (D879) due to:
-

excessive wheel bearing play

-

incorrect mounting of wheel speed sensor
ring

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

Fault code

Fault code description with possible cause

Symptom

EBS

1-6

©

200438

EBS fault codes

1

DAVIE XD diagnostics manual

23-47

Excessive oscillation of wheel speed sensor
signal (maximum/minimum level) from wheel
speed sensor (F515) on pins B1 and B2 of the
rear axle modulator (D879) due to:
-

excessive wheel bearing play

-

incorrect mounting of wheel speed sensor
ring

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

23-48

Minimum value of wheel speed sensor signal
from wheel speed sensor (F515) on pins B1 and
B2 of the rear axle modulator (D879) is too low
due to:
-

too large an air gap between wheel speed
sensor ring and wheel speed sensor

-

contact resistance on pin B1 and/or B2 of
the rear axle modulator

-

ABS on rear axle, right deactivated

-

ASR brake/engine control deactivated

24-37

Interruption in wheel speed sensor (F514) on pins
C1 and C2 of the rear axle modulator (D879)

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-41

Short circuit to earth in wheel speed sensor
(F514) on pins C1 and C2 of the rear axle
modulator (D879)

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-42

Short circuit to supply in wheel speed sensor
(F514) on pins C1 and C2 of the rear axle
modulator (D879)

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-44

Short circuit between pins C1 and C2 of the rear
axle modulator (D879), wheel speed sensor
(F514)

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-45

Incorrect wheel speed sensor sine-wave signal
from wheel speed sensor (F514) on pins C1 and
C2 of the rear axle modulator (D879) due to:
-

distorted wheel speed sensor ring

-

damaged wheel speed sensor ring

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-46

No uniformity (frequency changes) of wheel
speed sensor signal from wheel speed sensor
(F514) on pins C1 and C2 of the rear axle
modulator (D879) due to:
-

excessive wheel bearing play

-

incorrect mounting of wheel speed sensor
ring

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-47

Excessive oscillation of wheel speed sensor
signal (maximum/minimum level) from wheel
speed sensor (F514) on pins C1 and C2 of the
rear axle modulator (D879) due to:
-

excessive wheel bearing play

-

incorrect mounting of wheel speed sensor
ring

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

24-48

Minimum value of wheel speed sensor signal
from wheel speed sensor (F514) on pins C1 and
C2 of the rear axle modulator (D879) is too low
due to:
-

too large an air gap between wheel speed
sensor ring and wheel speed sensor

-

contact resistance on pin C1 and/or C2 of
the rear axle modulator

-

ABS on rear axle, left deactivated

-

ASR brake/engine control deactivated

Fault code

Fault code description with possible cause

Symptom

©

200438

1-7

EBS fault codes

EBS

DAVIE XD diagnostics manual

1

31-16

Large deviation between the duty cycle signals
from the foot brake valve (F628) on pins E2 and
E5 of the EBS unit due to:
-

internal fault in foot brake valve

-

ABS on front and rear axles deactivated

-

ASR brake/engine control deactivated

-

EBS pressure control on front axle, rear axle
and drawn vehicle deactivated

-

Low voltage on connection point A9 inside
EBS unit

31-52

Large deviation between the duty cycle signals
from the foot brake valve (F628) on pins E2 and
E5 of the EBS unit due to:
-

internal fault in foot brake valve

-

No noticeable system limitation in EBS

32-37

No signal from brake pedal position switch 1 in
foot brake valve (F628) on pin E3 of the EBS unit
due to:
-

defective switch

-

interruption on pin E3 of the EBS unit

-

No noticeable system limitation in EBS

32-41

Brake pedal position switch 1 remains closed in
foot brake valve (F628) or short circuit to earth on
pin E3 of the EBS unit

-

The actuating pressure control is active
when the brake pedal is not applied; after a
specified time (approx. 1 min.) the actuating
pressure control will automatically
disengage.

33-37

No signal from brake pedal position switch 2 in
foot brake valve (F628) on pin E6 of the EBS unit
due to:
-

defective switch in foot brake valve

-

interruption on pin E6 of the EBS unit

-

No noticeable system limitation in EBS

33-41

Brake pedal position switch 2 remains closed in
foot brake valve (F628) or short circuit to earth on
pin E6 of the EBS unit

-

The actuating pressure control is active
when the brake pedal is not applied; after a
specified time (approx. 1 min.) the actuating
pressure control will automatically
disengage.

34-41

Lower signal level from brake pedal position
sensor 1 in foot brake valve (F628) on pin E2 of
the EBS unit is too low during a specified period
of time due to:
-

contact resistance on pin E2 of the EBS unit

-

internal fault in foot brake valve

-

short circuit to earth on pin E2 of the EBS
unit

-

No noticeable system limitation in EBS

34-43

Upper signal level from brake pedal position
sensor 1 in foot brake valve (F628) on pin E2 of
the EBS unit is too high during a specified time or
the pulse width of the signal is incorrect due to:
-

short circuit to supply on pin E2 of the EBS
unit

-

internal fault in foot brake valve

-

interruption on pin E1 of the EBS unit

-

interruption on connection point E2 of the
EBS unit

-

No noticeable system limitation in EBS

Fault code

Fault code description with possible cause

Symptom

EBS

1-8

©

200438

EBS fault codes

1

DAVIE XD diagnostics manual

35-41

Lower signal level from brake pedal position
sensor 2 in foot brake valve (F628) on pin E5 of
the EBS unit is too low during a specified period
of time due to:
-

contact resistance on pin E5 of the EBS unit

-

internal fault in foot brake valve

-

short circuit to earth on pin E5 of the EBS
unit

-

No noticeable system limitation in EBS

35-43

Upper signal level from brake pedal position
sensor 2 in foot brake valve (F628) on pin E5 of
the EBS unit is too high during a specified time or
the pulse width of the signal is incorrect due to:
-

short circuit to supply on pin E5 of the EBS
unit

-

internal fault in foot brake valve

-

interruption on pin E4 of the EBS unit

-

interruption on pin E5 of the EBS unit

-

No noticeable system limitation in EBS

41-61

Communication via V-CAN on pins A1 and A3 of
the EBS unit not possible when switching on
ignition due to:
-

interruption on pin A1 of the EBS unit

-

short circuit to earth on pin A3 of the EBS
unit

-

short circuit to supply on pin A1 and/or A3 of
the EBS unit

-

ASR brake/engine control deactivated

41-63

Interrupted communication via V-CAN on pins A1
and A3 of the EBS unit due to:
-

interruption on pin A1 and/or A3 of the EBS
unit

-

short circuit to earth on pin A3 of the EBS
unit

-

short circuit to supply on pin A1 and/or A3 of
the EBS unit

-

ASR brake/engine control deactivated

41-65

No CAN message "ERC1" received within a
specified period of time from the engine
management system in relation to the engine
braking torque

-

No noticeable system limitation in EBS

41-66

No CAN message "EEC1" received within a
specified period of time from the engine
management system in relation to the engine
torque and engine speed

-

No noticeable system limitation in EBS

41-67

No CAN message "ETC1" received within a
specified period of time from the gearbox
(AS Tronic) if the drive line is activated

-

No noticeable system limitation in EBS

41-68

No CAN message "CCVS" received within a
specified period of time from the engine
management system in relation to the parking
brake status, vehicle speed and clutch status

-

No noticeable system limitation in EBS

Fault code

Fault code description with possible cause

Symptom