DAF LF45, LF55 Series. Manual — part 29

©

1-1

EMAS fault codes

EMAS

DAVIE XD diagnostics manual

5

1. EMAS FAULT CODES

1.1 INTRODUCTION

If the electronic unit detects a system fault, this

fault is usually stored in the memory of the

electronic unit as a fault code.

Most system faults will also generate a warning.

EMAS

1-2

©

EMAS fault codes

5

DAVIE XD diagnostics manual

1.2 EXPLANATORY NOTES TO EMAS FAULT CODES

Fault code

Fault code description with possible cause

Symptom

600-00

Centring pressure above 175 bar due to:
-

defective accumulator

-

non-switching accumulator valve (SP071)

-

Trailing axle in centre position and does not
steer anymore

600-01

Centring pressure too low due to:
-

leak in centring circuit

-

non-switching accumulator relief valve
(SP041)

-

Trailing axle in centre position and does not
steer anymore

600-03

Internal fault in centring circuit pressure sensor
(PSY)

-

Trailing axle in centre position and does not
steer anymore

Short circuit to earth in angle sensors (F687 and
F688) on pin C3 of the ECU

Interruption or short circuit to earth in pressure
sensors (PSX and PSY) on pin D4 of the ECU

Short circuit to earth in centring circuit pressure
sensor (PSY) on pin C9 of the ECU

600-04

Internal fault in centring circuit pressure sensor
(PSY)

-

Trailing axle in centre position and does not
steer anymore

Short circuit to supply in front axle angle sensor
(F687) on pin C14 of the ECU

Short circuit to earth or to supply in angle sensors
(F687 and F688) on pin C3 of the ECU

Short circuit to supply in trailing axle angle sensor
(F688) on pin C12 of the ECU

Short circuit to earth or to supply in pressure
sensors (PSX and PSY) on pin D4 of the ECU

Interruption or short circuit to supply in centring
circuit pressure sensor (PSY) on pin C9 of the
ECU

Short circuit in centring circuit pressure sensor
(PSY) between pins C9 and D4 of the ECU

Short circuit to supply in steering circuit pressure
sensor (PSX) on pin C10 of the ECU

Interruption in pressure sensors (PSX and PSY)
on pin D3 of the ECU

600-15

Centring pressure above 100 bar due to:
-

defective accumulator

-

Trailing axle in centre position and does not
steer anymore

600-16

Centring pressure above 60 bar due to:
-

defective accumulator

-

Trailing axle in centre position and does not
steer anymore

600-17

Centring pressure too low due to:
-

leak in centring circuit

©

1-3

EMAS fault codes

EMAS

DAVIE XD diagnostics manual

5

600-18

Centring pressure too low and centring circuit
cannot be filled in time due to:
-

leak in centring circuit

-

Trailing axle in centre position and does not
steer anymore

601-00

Control pressure too low during start-up phase
with pressure relief valve (SP201) due to:
-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

601-01

Control pressure too high while the pressure relief
valve (SP201) is not being actuated due to:
-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

-

Trailing axle in centre position and does not
steer anymore

601-03

Internal fault in steering circuit pressure sensor
(PSX)

-

Trailing axle in centre position and does not
steer anymore

Short circuit to supply in front axle angle sensor
(F687) on pin C14 of the ECU

Short circuit to earth or to supply in angle sensors
(F687 and F688) on pin C3 of the ECU

Short circuit to supply in trailing axle angle sensor
(F688) on pin C12 of the ECU

Short circuit to earth or to supply in pressure
sensors (PSX and PSY) on pin D4 of the ECU

Short circuit to supply in centring circuit pressure
sensor (PSY) on pin C9 of the ECU

Interruption or short circuit to supply in steering
circuit pressure sensor (PSX) on pin C10 of the
ECU

Short circuit in pressure sensors (PSX and PSY)
between pins C10 and D4 of the ECU

Interruption in pressure sensors (PSX and PSY)
on pin D3 of the ECU

601-04

Internal fault in steering circuit pressure sensor
(PSX)

-

Trailing axle in centre position and does not
steer anymore

Short circuit to earth in angle sensors (F687 and
F688) on pin C3 of the ECU

Interruption or short circuit to earth in pressure
sensors (PSX and PSY) on pin D4 of the ECU

Short circuit to earth in steering circuit pressure
sensor (PSX) on pin C10 of the ECU

601-15

Control pressure regulation via pressure relief
valve (SP201) inadequate due to:
-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

Fault code

Fault code description with possible cause

Symptom

EMAS

1-4

©

EMAS fault codes

5

DAVIE XD diagnostics manual

601-16

Control pressure too low with active release valve
(SP051) due to:
-

the fluid flow not being controlled due to
mechanical blocking of the control valve
(SP201)

-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

-

Trailing axle in centre position and does not
steer anymore

601-17

Control pressure too high with pressure relief
valve (SP201) due to:
-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

-

Trailing axle in centre position and does not
steer anymore

601-18

Control pressure too high with release valve
(SP051) not active due to:
-

the fluid flow not being controlled due to
mechanical blocking of the pressure relief
valve (SP201)

-

exchanged pressure sensor connectors

-

Trailing axle in centre position and does not
steer anymore

603-10

Value of speed-dependent signal changes too
fast due to:
-

poor contact connections on pin A3 of the
ECU

603-12

Module does not function correctly

603-16

Vehicle speed-dependent signal too high

603-18

Vehicle speed-dependent signal too low

603-31

Internal failure in MTCO electronic unit (B525)

-

Trailing axle in centre position and does not
steer anymore

Internal failure in EBS electronic unit (D880)

-

Trailing axle in centre position and does not
steer anymore

-

EBS or ABS warning

Internal failure in VIC electronic unit (D900)

-

Trailing axle in centre position and does not
steer anymore

Interruption, short circuit to earth or to supply of
speed signal on pin D12 of the ECU

-

Trailing axle in centre position and does not
steer anymore

Interruption of vehicle speed-dependent signal on
pin A3 of the ECU

-

Trailing axle in centre position and does not
steer anymore

Short circuit to earth of vehicle speed-dependent
signal on pin A3 of the ECU

-

Trailing axle co-steers

604-03

Internal failure in front axle angle sensor (F687)

-

Trailing axle in centre position and does not
steer anymore

Interruption or short circuit to earth in front axle
angle sensor (F687) on pin C14 of the ECU

Interruption, short circuit to earth or to supply in
angle sensors (F687 and F688) on pin C3 of the
ECU

Short circuit to earth in pressure sensors (PSX
and PSY) on pin D4 of the ECU

Fault code

Fault code description with possible cause

Symptom