DAF 95XF. Manual - part 165

 

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DAF 95XF. Manual - part 165

 

 

©

 200438

1-13

UPEC fault codes

UPEC

DAVIE XD diagnostics manual 

2

56-13

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipes of cylinders 1, 3 
and 6

-

defective/clogged injectors of cylinders 1, 3 
and 6

-

air in fuel system

-

internal leakage of pump units of cylinders 1, 
3 and 6

-

clogged injector pipes of cylinders 1, 3 and 6

-

too low a combustion pressure in cylinders 
1, 3 and 6 caused by a mechanical defect of 
the engine (valve seal etc.)

-

Irregular engine running and reduced 
engine power

56-14

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipes of cylinders 3, 5 
and 6

-

defective/clogged injectors of cylinders 3, 5 
and 6

-

air in fuel system

-

internal leakage of pump units of cylinders 3, 
5 and 6

-

clogged injector pipes of cylinders 3, 5 and 6

-

too low a combustion pressure in cylinders 
3, 5 and 6 caused by a mechanical defect of 
the engine (valve seal etc.)

-

Irregular engine running and reduced 
engine power

56-15

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipes of cylinders 1, 3, 5 
and 6

-

defective/clogged injectors of cylinders 1, 3, 
5 and 6

-

air in fuel system

-

internal leakage of pump units of cylinders 1, 
3, 5 and 6

-

clogged injector pipes of cylinders 1, 3, 5 
and 6

-

too low a combustion pressure in cylinders 
1, 3, 5 and 6 caused by a mechanical defect 
of the engine (valve seal etc.)

-

Irregular engine running and reduced 
engine power

57-1

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipe of cylinder 2

-

defective/clogged injector of cylinder 2

-

air in fuel system

-

internal leakage of pump unit of cylinder 2

-

clogged injector pipe of cylinder 2

-

too low a combustion pressure in cylinder 2 
caused by a mechanical defect of the engine 
(valve seal etc.)

-

Irregular engine running and reduced 
engine power

Fault code

Fault code description with possible cause

Symptom

UPEC

1-14

©

 200438

UPEC fault codes

2

DAVIE XD diagnostics manual

57-2

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipe of cylinder 4

-

defective/clogged injector of cylinder 4

-

air in fuel system

-

internal leakage of pump unit of cylinder 4

-

clogged injector pipe of cylinder 4

-

too low a combustion pressure in cylinder 4 
caused by a mechanical defect of the engine 
(valve seal etc.)

-

Irregular engine running and reduced 
engine power

57-3

Irregular engine running detected by the ECU due 
to:
-

fuel leak of injector pipes of cylinders 2 and 4

-

defective/clogged injectors of cylinders 2 
and 4

-

air in fuel system

-

internal leakage of pump units of cylinders 2 
and 4

-

clogged injector pipes of cylinders 2 and 4

-

too low a combustion pressure in cylinders 2 
and 4 caused by a mechanical defect of the 
engine (valve seal etc.)

-

Irregular engine running and reduced 
engine power

61-8

Internal CAN fault in ECU

-

System reaction depending on the missing V 
CAN data

62-2

No CAN message received from ABS/EBS ECU 
relating to the engine torque control due to:
-

communication problem with ABS/EBS ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

63-2

No CAN message received from ABS/EBS ECU 
relating to the engine braking function due to:
-

communication problem with ABS/EBS ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

Fault code

Fault code description with possible cause

Symptom

©

 200438

1-15

UPEC fault codes

UPEC

DAVIE XD diagnostics manual 

2

65-2

No CAN message received from transmission 
ECU due to: 
-

communication problem with transmission 
ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

66-2

No CAN message received from transmission 
ECU due to: 
-

communication problem with transmission 
ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

67-2

No CAN message received from transmission 
ECU due to: 
-

communication problem with transmission 
ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

68-1

No CAN message received from transmission 
ECU due to: 
-

communication problem with transmission 
ECU

-

No noticeable system limitation in UPEC

Communication problem via V-CAN on pin B11 or 
pin B12 of the ECU due to:
-

interruption on pin B11 or B12 of the ECU

-

short circuit to supply on pin B11 or B12 of 
the ECU

-

Rev counter gives no reading

-

Thermometer gives no reading

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to earth on pin B12 of the ECU

-

Rev counter gives no reading

Fault code

Fault code description with possible cause

Symptom

UPEC

1-16

©

 200438

UPEC fault codes

2

DAVIE XD diagnostics manual

69-1

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

defective immobiliser

-

ignition key not adjusted to the immobiliser

-

immobiliser not matched to UPEC ECU

-

voltage on pin B15 but no voltage on pins B3 
and B4 of the ECU

-

Engine starts but will not fire

Communication problem via V-CAN on pin B11 
and/or pin B12 of the ECU due to:
-

interruption on pin B11 and/or pin B12 of the 
ECU

-

short circuit to supply on pin B11 of the ECU

-

Engine starts but will not fire

-

Several systems will output error messages 
in connection with the CAN communication

Communication problem via V-CAN on pin B12 of 
the ECU due to:
-

short circuit to supply on pin B12 of the ECU

-

Several systems will output error messages 
in connection with the CAN communication

71-1

Short circuit to supply of glow relay (G014) on pin 
B10 of the ECU

-

Glow function cannot be activated

71-2

Short circuit to earth of glow relay (G014) on pin 
B10 of the ECU

-

Glow function permanently activated

71-8

Interruption in glow relay (G014) on pin B10 of the 
ECU

-

Glow function cannot be activated

73-1

Short circuit to supply of exhaust brake solenoid 
valve (B192) on pin B9 of the ECU

-

Exhaust brake cannot be activated

73-2

Short circuit to earth of exhaust brake solenoid 
valve (B192) on pin B9 of the ECU

-

Exhaust brake permanently activated

No supply voltage on glow relay, exhaust brake 
and DEB due to faulty fuse

-

Glow function cannot be activated

-

Exhaust brake cannot be activated

-

DEB cannot be activated

73-8

Interruption in exhaust brake solenoid valve 
(B192) on pin B9 of the ECU

-

Exhaust brake cannot be activated

74-1

Short circuit to supply of connection point for DIP 
stop indicator on pin B6 of the ECU

-

No noticeable system limitation in UPEC

74-2

Short circuit to earth of connection point for DIP 
stop indicator on pin B6 of the ECU

-

No noticeable system limitation in UPEC

74-8

Interruption in connection point for DIP stop 
indicator on pin B6 of the ECU

-

No noticeable system limitation in UPEC

75-1

Short circuit to supply of DEB solenoid valve 
(B247) on pin B18 of the ECU

-

Reduced braking power of DEB

75-2

Short circuit to earth of DEB solenoid valve 
(B247) on pin B18 of the ECU

-

DEB permanently activated

-

Irregular engine running

75-8

Interruption in DEB solenoid valve (B247) on pin 
B18 of the ECU

-

Reduced braking power of DEB

77-1

Short circuit to supply of DEB solenoid valve 
(B248) on pin A8 of the ECU

-

Reduced braking power of DEB

77-2

Short circuit to earth of DEB solenoid valve 
(B248) on pin A8 of the ECU

-

DEB permanently activated

-

Irregular engine running

77-8

Interruption in DEB solenoid valve (B248) on pin 
A8 of the ECU

-

Reduced braking power of DEB

Fault code

Fault code description with possible cause

Symptom

 

 

 

 

 

 

 

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