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