DAF 95XF. Manual — part 218

©

200438

1-9

ECS-DC3 fault codes

ECS-DC3

DAVIE XD diagnostics manual

17

625 - 9

No communication with immobiliser when
switching on the ignition, or immobiliser code
does not correspond with ECS-DC3 code due to:
-

defective immobiliser

-

ignition key not adjusted to the immobiliser

-

immobiliser not matched to ECS-DC3 ECU

Communication problem via V-CAN on pin B52
and/or pin B53 of the ECU due to:
-

interruption on pin B52 and/or pin B53 of the
ECU

-

short circuit to supply on pin B52 of the ECU

-

short circuit to supply on pin B53 of the ECU

Motor starts but does not fire or it does fire but
stalls at once.

627 - 2

All information gathered by the ECU (e.g. fault
codes, trip information etc.) after last ignition on,
is lost at ignition off due to:
-

faulty fuse E160 and/or E118

-

bad or discharged battery

-

poor battery connections

-

failure of the constant voltage before the
voltage on connection point B39 of the ECU
is lost

No noticeable system limitation in ECS-DC3.

628 - 31

Internal ECU software fault due to:
-

internal ECU (D903) software fault

Irregular engine running and reduced engine
output.
Engine starts but will not fire.

629 - 12

ECU is not switched off after ignition off due to:
-

internal ECU (D903) software fault

When the vehicle is stationary for a long period,
the high current consumption of the ECU will
empty the vehicle batteries.

Internal ECU hardware fault due to:
-

internal ECU (D903) hardware fault

Irregular engine running and reduced engine
output.
Engine starts but will not fire.

ECU supply voltage fault due to:
-

moisture in ECU connectors (poor contacts)

-

poor power supply and/or earth connections
to the ECU (D903)

Irregular engine running and reduced engine
output.
Engine starts but will not fire.

630 - 12

Internal ECU hardware fault due to:
-

internal ECU (D903) hardware fault

Irregular engine running and reduced engine
power
Engine starts but will not fire.

639 - 2

CAN communication interrupted before complete
message has been sent due to:
-

faulty CAN wiring

-

fault in other ECU connected to the V-CAN

System reaction depending on the missing V
CAN data.

639 - 9

CAN communication is not fast enough due to:
-

faulty CAN wiring

-

fault in other ECU connected to the V-CAN

System reaction depending on the missing V
CAN data.

651 - 5

Measured current strength from cylinder 1
injector (B131) is too low. This is the current
between pins C09 and C13 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

Fault code

Fault code description with possible cause

Symptom

ECS-DC3

1-10

©

200438

ECS-DC3 fault codes

17

DAVIE XD diagnostics manual

651 - 7

Incorrect mechanical response from cylinder 1
injector (B131) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

651 - 11

Short circuit in injector(s) of cylinder row #1,
cylinders 1, 3 and 5 in case of a CE engine,
cylinders 1 and 3 in case of a BE engine,
due to:
-

short circuit to earth or short circuit in the
injector wiring

-

engine having been switched off at an
engine speed over 1300 rpm

Longer start time before engine fires.
Irregular engine running and reduced engine
output.
Cylinder row is deactivated as long as the ignition
is still on. When the cause has been removed, the
cylinder row is only activated again when the
ignition has been switched off for about 10
seconds.

651 - 13

Injection time is too long due to:
-

fuel pressure too low

Irregular engine running and reduced engine
output.
Engine starts but will not fire.

652 - 5

Measured current strength from cylinder 2
injector (B132) is too low. This is the current
between:
BE: pins C10 and C15 of the ECU,
CE: pins C03 and C06 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

652-7

Incorrect mechanical response from cylinder 2
injector (B132) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

653 - 5

Measured current strength from cylinder 3
injector (B133) is too low. This is the current
between:
BE: pins C11 and C16 of the ECU,
CE: pins C04 and C12 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

653-7

Incorrect mechanical response from cylinder 3
injector (B133) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

654 - 5

Measured current strength from cylinder 4
injector (B134) is too low. This is the current
between:
BE: pins C04 and C12 of the ECU,
CE: pins C05 and C14 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

Fault code

Fault code description with possible cause

Symptom

©

200438

1-11

ECS-DC3 fault codes

ECS-DC3

DAVIE XD diagnostics manual

17

654 - 7

Incorrect mechanical response from cylinder 4
injector (B134) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

654 - 11

Short circuit in injector(s) of cylinder row #2,
cylinders 2, 4 and 6 in case of a CE engine,
cylinders 2 and 4 in case of a BE engine,
due to:
-

short circuit to earth or short circuit in the
injector wiring

-

engine having been switched off at an
engine speed over 1300 rpm

Longer start time before engine fires.
Irregular engine running and reduced engine
output.
Cylinder row is deactivated as long as the ignition
is still on. When the cause has been removed, the
cylinder row is only activated again when the
ignition has been switched off for about 10
seconds.

654 - 13

Pre-injection overlaps the beginning of main
injection due to:
-

defective ECU (D903)

Loud combustion knocking.

655 - 5

Measured current strength from cylinder 5
injector (B135) is too low. This is the current
between pins C11 and C16 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

655-7

Incorrect mechanical response from cylinder 5
injector (B135) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

656 - 5

Measured current strength from cylinder 6
injector (B136) is too low. This is the current
between pins C10 and C15 of the ECU,
caused by:
-

interruption in injector wiring

-

bad connection point at injector

Irregular engine running and reduced engine
output.

656-7

Incorrect mechanical response from cylinder 6
injector (B136) due to:
-

faulty injector

-

internal fuel leakage

-

leakage in fuel supply system (high
pressure) to injector

Longer start time before engine fires.
Irregular engine running and reduced engine
output.

723 - 2

No signal from camshaft sensor due to:
-

faulty/soiled camshaft sensor (F558)

-

too large an air gap between camshaft
sensor and camshaft gear

-

short circuit, short circuit to supply, short
circuit to earth, contact resistance(s) or
interruption in wiring on pin A23 and/or pin
A30

Longer start time before engine fires.

723 - 7

Crankshaft sensor and camshaft sensor signals
do not correspond due to:
-

incorrect timing

-

short circuit or interruption in wiring

-

faulty/soiled crankshaft/camshaft sensor
(F552/F558)

-

Engine starts but will not fire.

-

Longer start time before engine fires.

-

Irregular engine running and reduced
engine output.

Fault code

Fault code description with possible cause

Symptom

ECS-DC3

1-12

©

200438

ECS-DC3 fault codes

17

DAVIE XD diagnostics manual

729 - 11

Fault in glow element circuit due to:
-

short circuit, short circuit to earth, short
circuit to supply, contact resistance(s) or
interruption in wiring to pin B16 of the ECU

-

faulty glow relay (G014)

Depending on the cause:
-

glow function cannot be activated

-

glow function is permanently activated

854-4

Low voltage or short circuit to earth on signal pin
B18 of the ECU for fuel heating (B182) due to:
-

faulty fuel heating element

-

short circuit to earth on pin B18 of the ECU

-

short circuit between pin B02 and pin B18 of
the ECU

Fuel heating is not activated.

974 - 3

Voltage on remote throttle circuit, signal pin B85,
is too high due to:
-

faulty remote throttle potentiometer

-

short circuit to supply on pin B85 of the ECU

-

interruption on pin B50 of the ECU

-

short circuit between pin B85 and pin B68 of
the ECU

Possibly the engine does not respond to remote
throttle operation.

974 - 4

Short circuit to earth on remote throttle circuit,
signal pin B85, or voltage is too low due to:
-

faulty remote throttle potentiometer

-

interruption on pin B85 and/or pin B68 of the
ECU

-

short circuit to earth on pin B85 and/or pin
B68 of the ECU

-

short circuit between pin B50 and pin B68 of
the ECU

-

short circuit between pin B50 and pin B85 of
the ECU

Possibly the engine does not respond to remote
throttle operation.

1073 - 11

Fault in exhaust brake circuit due to:
-

short circuit or interruption in wiring to pin
B11 of the ECU

-

short circuit or interruption in the coil of
exhaust brake valve (B192)

-

Exhaust brake cannot be activated.

-

Exhaust brake is permanently activated.

1077 - 14

Fuel rail pressure cannot be maintained at
maximum pump output (fuel pump control
solenoid valve fully opened) due to:
-

external fuel leakage of the fuel system's
high-pressure circuit

-

internal leakage of the fuel system's high-
pressure circuit due to:
-

bad sealing of rail pressure limiting
valve

-

injector(s) with excessive internal
leakage

-

leaking fuel supply line(s) to the
injector(s)

-

jammed plunger of fuel pump control
solenoid valve (B334)

-

defective fuel pump (capacity too low)

-

Engine starts but will not fire.

-

Longer start time before engine fires.

-

Possibly a delayed engine response when
operating the accelerator pedal when much
power is required.

Fault code

Fault code description with possible cause

Symptom