Volvo TAD Series Generator Engine Fault Code Register

To keep engine run well, it is not enough to know about the fault code, but also need to know the possible reasons and reaction, which can quickly solve the problems. In this part, we mainly talk about Volvo TAD Series generator engine fault code register.

Fault Code Register

No faults (code 2.0.0)

Engine speed sensor, camshaft (code 2.1.1, PID190)

Possible reason:

• Faulty sensor, connector or cable.

• Incorrect distance to cam wheel.

• High frequency interference.

Reaction: Engine is shut off.

Action:

• Check that the engine speed sensor is installed with the correct distance to the camshaft.

• Check the cables for the engine speed sensor for breaks and short circuits.

• Check the connector for poor contact.

• Check sensor function. Change the sensor as necessary.

Overspeed (Code 2.1.4, PID190)

Possible reason: The engine speed is or has been higher than the permissible.

Reaction: Fuel injection ceases and the fault code lamp lights up until the engine speed falls below the permissible limit again.

Action:

• Check the control rod for the injection pumps.

• Check the actuator, replace it if necessary.

• Check the cables for the actuator for breaks and short circuits.

• Check the number of teeth on the camshaft wheel.

• For VE engines, it may be necessary to check the function of the “limp home” mode.

Volvo Generator TAD532GE Series Engine 

Accelerator pedal sensor (Code 2.2.1, PID 91)

Possible reason: Faulty sensor, connector or cable.

Reaction: Engine goes to limp home speed.

Action:

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Charge pressure sensor (Code 2.2.2, PID 102)

Possible reason: Faulty sensor, connector or cable.

Reaction: A fault code is generated.

Action:

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Oil pressure sensor (Code 2.2.4, PID 100)

Possible reason: Faulty sensor, connector or cable.

Reaction: A fault code is generated.

Action:

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Coolant temperature sensor (Code 2.2.5, PID 110)

Possible reason: Faulty sensor, connector or cable.

Reaction: A fault code is generated.

Action:

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Fuel temperature sensor (Code 2.2.7, PID 174)

Possible reason: Faulty sensor, connector or cable.

Reaction: A fault code is generated.

Action:

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Emergency stop, oil pressure (Code 2.3.1, PID 100)

Possible reason: Engine oil pressure low. (The engine oil pressure is depended by the engine revolution.)

Reaction: Engine is emergency stopped.

Action:

• Check the oil level and oil pump.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

• Check the limit value for engine shut-off due to oil pressure.

Emergency stop, oil pressure (Code 2.3.1, PID 100)

Possible reason: Oil pressure is too low. (The engine oil pressure is depended by the engine revolution.)

Reaction: A fault code is generated. The fault code disappears when the oil pressure exceeds the recuperation value.

Action:

• Check the oil level and oil pump.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

• Check the limit value for oil pressure warning.

Warning, coolant temperature (Code 2.3.2, PID 110)

Possible reason: Coolant temperature too high.

Reaction: A fault code is generated. The fault code disappears when the coolant temperature falls below the limit value.

Action:

• Check the coolant level.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Warning, coolant level (Code 2.3.5, PID 111)

Possible reason: Coolant level is too low.

Reaction: A fault code is generated.

Action:

• Check the coolant level.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

NOTICE! The engine is delivered without coolant level sensor.

Overspeed in limp home mode (Code 2.3.6, PID 190)

Possible reason:

• Engine goes to limp home speed.

• The engine speed is or has been higher than the permissible.

Reaction:

GE: Engine is shutdown. A fault code is generated.

VE: Fuel injection ceases when the control rod returns to its home position and the fault code lamp lights up until the engine speed falls below the permissible limit again.

Action:

• Check the control rod for injection pump.

• Check / change the actuator.

• Check the sensor cable for breaks and short circuits.

• Check the number of teeth on the camshaft wheel.

• For VE engines, it may be necessary to check the function of the “limp home” mode.

Warning, fuel temperature (Code 2.3.7, PID 174)

Possible reason: Fuel temperature too high.

Reaction: A fault code is generated. The fault code disappears when the fuel temperature falls below the limit value.

Action:

• Check fuel level.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

Emergency stop, coolant temperature (Code 2.3.2, PID 110)

Possible reason: Coolant temperature too high.

Reaction: Engine is emergency stopped.

Action:

• Check the coolant level.

• Check the sensor cable for breaks and short circuits.

• Check sensor function. Change the sensor as necessary.

• Check the limit value for engine shut-off due to high coolant temperatue.

Emergency stop, coolant level (Code 2.3.5, PID 111)

Possible reason: Coolant level is too low.

Reaction: Engine is emergency stopped. The engine can be restarted when the coolant level have been rectified.

Action:

1 Check the coolant level.

2 Check the sensor cable for breaks and short circuits.

3 Check sensor function. Change the sensor as necessary.

NOTICE! The engine is delivered without coolant level sensor.

Control rod position sensor (Code 2.5.1, SID 24)

Possible reason:

• Actuator not connected.

• Faulty value from control rod position sensor in actuator.

Reaction:

• Engine is emergency stopped.

• Actuator can not be controlled.

Action:

• Check / change the actuator.

• Check the sensor cable for breaks and short circuits.

Control rod position sensor (Code 2.5.1, SID 24)

Possible reason:

• Actuator not connected.

• Faulty value from control rod position sensor in actuator.

Reaction:

• Engine is emergency stopped.

• Actuator can not be controlled.

Action:

• Check / change the actuator.

• Check the sensor cable for breaks and short circuits.

Control rod position sensor, difference (Code 2.5.1, SID 23)

Possible reason:

• Injection pump/actuator has got stuck or is not connected.

• Difference between control rod current value and nominal value exceeds 10%.

Reaction: A fault code is generated.. The fault code disappears when the difference between control rod current value and nominal value falls below 10%.

Action:

• Check the control rod for the injection pumps.

• Check the actuator, control rod and injection pumps. Change as necessary.

• Check the sensor cable for breaks and short circuits.

Injection pump, auto calibration (Code 2.5.2., SID 23)

Possible reason: Automatic actuator equalization is not possible. Faulty calibration.

Reaction:

• Engine is emergency stopped.. The engine cannot be re-started until the fault is rectified.

• The regulator can not be activated.

Action:

• Check the actuator. Change as necessary.

• Check the actuator cables.

• Turn the ignition off and on, and check if the fault code remains.

Communication fault, CAN bus (Code 2.7.1, SID 231)

Possible reason: CAN controller for CAN bus is faulty.

Action:

• Check wiring

• Check the control unit.

Parameter programming (Code 2.8.1, SID 252)

Possible reason: Memory failure.

Reaction: Engine is emergency stopped. The engine can not be started until the fault has been rectified.

Action: Turn the ignition off and on, and check if the fault code remains.

Cyclical program test (Code 2.8.1, SID 240)

Possible reason: Memory failure.

Reaction: Engine is emergency stopped. The engine can not be started until the fault has been rectified.

Action: Turn the ignition off and on, and check if the fault code remains.

Control unit, voltage supply (Code 2.9.1, PID 158)

Possible reason: Voltage supplied to actuator exceeds permissible limit values.

Reaction: EA fault code is generated.. The fault code disappears when the voltage returns to within the permissible limit values.

Action: Turn the ignition off and on, and check if the fault code remains.

Reference voltage 1 (Code 2.8.2, PID 158)

Possible reason: Reference voltage for actuator exceeds permissible limit values.

Reaction: A fault code is generated.. The fault code disappears when the voltage returns to within the permissible limit values (5 V).

Action:

• Checking the power supply.

• Turn the ignition off and on, and check if the fault code remains.

Reference voltage 2 (code 2.8.2, PID 158)

Possible reason: Reference voltage for actuator exceeds permissible limit values.

Reaction: A fault code is generated. The fault code disappears when the voltage returns to within the permissible limit values (5 V).

Action:

• Checking supply voltage.

• Turn the ignition off and on, and check if the fault code remains.

Reference Voltage 3 (code 2.8.2, PID 158)

Possible reason: Reference voltage for actuator exceeds permissible limit values.

Reaction: A fault code is generated. The fault code disappears when the voltage returns to within the permissible limit values (5 V).

Action:

• Checking supply voltage.

• Turn the ignition off and on, and check if the fault code remains.

Atmospheric pressure (code 2.9.2, PID 48)

Possible reason: Air pressure is outside permissible values.

Reaction: A fault code is generated. The fault code disappears when the pressure returns to normal. Monitoring function for air pressure is activated.

Action:

• Check parameter settings.

• Turn the ignition off and on, and check if the fault code remains.