SCANIA Bus Fault Codes
Overview of flash codes for EMS control unit
No fault detected.
PDE in cylinder 3: The solenoid valve does not work correctly.
Over-revving. One or both engine speed sensors shows a speed in excess of 3,000 rpm.
PDE in cylinder 4: The solenoid valve does not work correctly.
Engine speed sensor 1 faulty, or incorrect signal.
PDE in cylinder 5: The solenoid valve does not work correctly.
Engine speed sensor 2 faulty, or incorrect signal.
PDE in cylinder 6: The solenoid valve does not work correctly.
Coolant temperature sensor faulty, or incorrect signal.
PDE in cylinder 7: The solenoid valve does not work correctly.
Charge air temperature sensor faulty, or incorrect signal.
PDE in cylinder 8: The solenoid valve does not work correctly.
Charge air pressure sensor faulty, or incorrect signal.
Incorrect signal in extra analogue input.
Oil temperature sensor faulty, or incorrect signal.
Incorrect control unit shutdown.
Oil pressure sensor faulty, or incorrect signal.
Shutdown due to coolant level.
Coolant level sensor faulty.
Alternator charging incorrectly.
Internal fault code in the coordinator.
Starter motor function interrupted or not activated.
Accelerator/brake. If the accelerator and brake pedals have been operated simultaneously.
Engine speed above ref. engine speed at start.
Accelerator sensor/idle switch.
Accelerator sensor/kickdown switch.
Fault in memory circuit (EEPROM) in control unit.
Engine shutdown bypassed.
Data transfer to the control unit memory (EEPROM) has been interrupted.
Shutdown due to oil pressure.
Incorrect internal temperature in the control unit.
Torque limitation due to oil pressure.
Internal fault in the control unit: Fault in hardware control.
Incorrect parameters for limp home function.
Fault in control unit RAM.
Battery voltage incorrect or no signal.
Internal control unit fault: Memory fault.
Emergency shutdown switch activated in accordance with CAN message from coordinator.
Incorrect seal: Prohibited changes in software.
CAN circuit faulty in the control unit.
Engine speed sensors faulty or not connected.
Immobiliser function. Starter key code incorrect.
Shutdown due to high coolant temperature.
CAN message from the coordinator incorrect or missing.
Torque limitation due to high coolant temperature.
Incorrect CAN version in control unit or coordinator.
Incorrect voltage supply to one of the sensors.
PDE in cylinder 1: The solenoid valve does not work correctly.
Internal hardware fault in the processor (TPU).
PDE in cylinder 2: The solenoid valve does not work correctly.
Flash code Fault description
Incorrect signal from the fine adjustment for the nominal engine speed signal.
Incorrect analogue signals from the accelerator pedal sensor.
Incorrect analogue signal from the resistor module for governor setting.
Incorrect analogue signal from the resistor module for idling and fixed speed setting.
No communication (EMS) with the engine.
Short-circuit in the tachometer signal circuit.
Faulty atmospheric pressure sensor.
Short-circuit in the coolant temperature gauge signal cable.
Short-circuit in the oil pressure gauge signal circuit.
Short-circuit in the oil pressure lamp signal circuit.
Different versions of the communications protocol between the coordinator and EMS.
Faulty start switch or short circuit.
Supply voltage too high.
Supply voltage too low.
Check value from end of line (EOL) is incorrect.
Speed sensor signal missing or incorrect.
The signals from the RCB (Remote Control Box) switches are implausible.
Incorrect signals from the droop setting switches.
Faulty remote start switch or short circuit.
No communication from the slave coordinator or the master coordinator.
Short circuit in the signal cable to the coolant temperature warning lamp.
Short circuit in the signal cable to the charge warning lamp.
Incorrect signal from the Fixed speed switches.
Fault in CAN communication.