DAF CF, LF, XF Truck Fault Codes DTC (Hydronic, D3LC)

DAF LF45 LF55 CF65 CF75 CF85 XF95 Trucks Fault Codes DTC

 

0-0

Internal communications failure in the electronic control unit (D901) as a result of the electronic control unit malfunction

– Cabin heater does not start or work intermittently

0-1

Internal communications failure in the electronic control unit (D901) as a result of the electronic control unit malfunction

– Cabin heater does not start or work intermittently

1-0

Malfunction when starting ACH-EW, no flame is detected during startup. Flame sensor value remains below 80 ° C, the voltage across the terminals 10 and 12 of the connector 18 from the bottom of the electronic

is below the 2.23:

– The absence or lack of fuel supply

– Insufficient air supply

– Clogged exhaust

– Pollution or damage to the igniter

– Too high or too low voltage spark

– Cabin heater does not start. After two unsuccessful launches cabin heater is turned off and generates fault code.

1-4

Too many starts without flame detection:

– The absence or lack of fuel supply

– Insufficient air supply

– Clogged exhaust

– Pollution or damage to the igniter

– Too high or too low voltage spark

– Cabin heater is switched off after 10 unsuccessful runs (runs 20 attempts) and the electronic control unit is blocked

2-0

The flame goes out frequently during the operation:

– The absence or lack of fuel supply

– Insufficient air supply

– Low or high voltage

– Excessively high flame temperature sensor

– Excessive temperature overheating sensor

– Faulty combustion device

– Pollution or damage to the igniter

– Clogged or dirty exhaust

– Cabin heater does not work, or smokes, highlighting the lack of heat

3-1

Too high voltage (above 30 V for 20 seconds) on the A5 and the electronic control unit Ab findings (D901) due to excessive alternator / battery voltage

batteries

– Disruptions in the cab heater

3-2

Too low voltage (below 20 V for 20 seconds) and A5 ECU findings Ab (D901) due to insufficient power supply, for example during engine start

– Disruptions in the cab heater

4-0

Alarm when the flame. Flame sensor value above 80 ° C, despite the four-minute cold air ventilation; the voltage across the terminals 10 and 12 of the 18-pin connector below the electronic control unit above 2.23 due to the flame sensor failure.

– Cabin heater does not start

5-1

Flame sensor short circuit at the terminals 10 and 12 of the 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

5-2

Break the flame detector circuit at the terminals 10 and 12 of the 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

6-1

Short in coolant temperature sensor

on the conclusions of 9 and 11 of the 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

6-2

Open circuit coolant temperature sensor on the findings

9 and 11 of the pin 18 from below the electronic control unit

– Cabin heater does not start or work intermittently

7-1

Short circuit in the fuel pump module from the level sensor (B122) at the terminals A1 and A2 of the electronic control unit

– Cabin heater does not start or work intermittently

7-2

Open circuit in the fuel pump module from the level sensor (B 122) on the conclusions of the A1 and A2 of the electronic control unit

– Cabin heater does not start or work intermittently

8-3

Deviation device combustion speed:

– Malfunction of the combustion device

– Malfunction of the electronic unit (D901)

– Heater cab during operation fails with a delay of 60 seconds

9-1

Short filament at terminals 3 and 4 of the 18-pin connector below the electronic control unit

– Cabin heater does not start

9-2

Open circuit at the terminals of the filament 3 and 4 of the 18-pin connector below the electronic control unit

– Cabin heater does not start

10-0

Too rapid growth of the coolant temperature:

– Bad liquid stream

– Lack of coolant

– Use Intarder

– Cabin heater fails during operation

10-4

Activated safety function ACH-EW as a result of too much overheating

– Cabin heater is not working. The electronic control unit is locked after three unsuccessful launches

11-1

Short circuit in the pump circulation of the coolant at the terminals 6 and 7 of the 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

11-2

Open circuit pump circulating coolant on the findings

6 and 7, pin 18 from below the electronic control unit

– Cabin heater does not start or work intermittently

13-1

Short circuit Overheating sensor conclusions 5 and 8 of the 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

13-2

Break overheating sensor circuit at the terminals 5 and 8 18-pin connector below the electronic control unit

– Cabin heater does not start or work intermittently

13-3

Too much difference between the values of overheating sensor and coolant temperature sensor:

– Bad liquid stream

– Lack of coolant

– Use Intarder

– Cabin heater does not start or work intermittently

15-1

Short circuit in the wiring “enable signal ACHEW» at terminal A9 ALS-S electronic control unit (D911)

– No signal detection system in the cabin (ALS-S)

0-0

Internal faults in the electronic control unit (D871):

– Malfunction of the electronic control unit (D871)

– Insufficient battery voltage

– Cabin heater does not start or fails during operation

0-1

Internal faults in the electronic control unit (D871):

– Malfunction of the internal temperature sensor in the electronic control unit (D871)

– Cabin heater does not start or fails during operation

1-0

Failed to start ACH-EA, the flame is detected during start-up:

– The absence or lack of fuel supply

– Insufficient air supply

– Clogged exhaust

– Malfunction of the flame sensor (F626)

– Damage to the filament (B 168)

– Cabin heater does not start. After two unsuccessful launches

cabin heater is switched off and a fault code is generated

2-0

In the process, the flame goes out frequently:

– The absence or lack of fuel supply

– Insufficient air supply

– Clogged exhaust

– Malfunction of the flame sensor (F626)

– Cabin heater does not work, or smokes, highlighting the lack of heat

3-1

Too high voltage (above 30 V for 20 seconds) at terminal A5 electronic control unit (D871):

– Excessive generator voltage / battery

– Cabin heater fails during operation

3-2

Too low voltage (below 20 V for 20 seconds) at terminal A5 electronic control unit (D871):

– Insufficient generator voltage and / Battery

– Open circuit at pin A5 electronic control unit (D871)

– Cabin heater does not start

4-0

fire alarm at startup:

– Malfunction of the flame sensor (F626)

– Malfunction of the electronic control unit (D871)

– Cabin heater does not start

5-1

Short-circuit to ground or the supply to the conclusions of the FW1 and FW2 electronic control unit (D871), a flame sensor (F626)

– Cabin heater does not start or fails during operation

5-2

Open on the findings and FW1 / FW2 or electronic control unit (D871), a flame sensor (F626)

– Cabin heater does not start or fails during operation

6-1

Short-circuit to ground or to the power supply at the terminals A8 and A13 Electronic Control Unit (D871), a temperature sensor (F509)

– Cabin heater does not start or fails during operation

6-2

Open on the findings and A8 / A13 or the electronic control unit (D871), a temperature sensor (F509)

– Cabin heater does not start or fails during operation

7-1

Short-circuit to ground or the supply to the A ll findings and / or electronic control unit AZ (D871), a fuel pump with a level sensor (B 122)

Internal fault in the fuel pump with a level sensor (B 122)

– Cabin heater does not starts

7-2

Open at the terminals 4 and / or 9 of the electronic control unit (D871), a fuel pump with a level sensor (B 122)

Internal fault in the fuel pump with a level sensor (B 122)

– Cabin heater does not start

8-1

Short-circuit to ground or to the power supply at the terminals BM1 and BM2 electronic control unit (D871), a fan (V305)

Internal fault in the fan cabin heater (V305)

– Cabin heater does not start

8-2

Open on pin BM1 and / or electronic control unit BM2, The fan (V305)

Internal fault in the fan cabin heater (V305)

– Cabin heater does not start

8-3

Deviation of the cab heater fan speed (V305):

– Fan Lock (V305)

– No solenoid electric motor

– Malfunction of the electronic control unit (D871)

– Cabin heater fails during operation

9-1

Short-circuit to ground or the supply to the A9 findings and / or AN electronic control unit (D871), a filament (B 168)

– Cabin heater does not start

9-2

Open on pin A9 and / or A ll of the electronic control unit (D871), a filament (V168)

– Cabin heater does not start

10-0

Cab heater overheats too often:

– Clogging of pipes of hot air

– Faulty overheat sensor (F627)

– Insufficient air supply

– Cabin heater fails during operation

10-4

Activated safety function ACH-EA as a result of too frequent overheating

– The electronic control unit is blocked

12-1

Short-circuit to ground or to the power supply at the terminals of the A8, A13, A7 and / or A14 Electronic Control Unit (D871), a thermostat unit (E566)

Internal fault in the thermostat block (E566) or timer unit (E581)

– Cabin heater does not start

– Cabin heater does not turn on or off when the desired temperature

12-2

Open at the terminals 10 and / or 11 of the electronic control unit, the unit

Thermostat (E566)

Internal fault in the thermostat block (E566) or timer unit (E581)

– Cabin heater does not start

– Cabin heater does not turn on or off when the desired temperature

13-1

Short-circuit to ground or the supply to the UF1 UF2 findings and the electronic control unit, overheating sensor (F627)

– Cabin heater does not start or fails during operation

13-2

Open to UF1 findings and / or UF2 electronic control unit, overheating sensor (F627)

– Cabin heater does not start or fails during operation