Applies to: EMD1
What does Scania EMD fault code 18 mean?
ECU indicates that temperature in the aftertreatment system is too high.
What causes Scania DTC 18?
Fire in aftertreatment system or engine side caused by oil/fuel leakage or extra HC accumulation in the aftertreatment system.
How does the system react?
Torque reduction and engine stop after specified time with red warning lamp.
What are the symptoms?
Engine stop after specified time.
How to fix Scania EMD fault code 18?
- Check if there is any oil leakage in the aftertreatmet system or any broken injector.
- Check the turbo for possible damages
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.
Code 18 in other Scania systems
- 18hex 0012 Communication with the BMS control unit
- 18hex 0012 Communication with the tachograph (TCO)
- 18hex 0012 Wheel speed
- 18hex 0012 No CAN message
- 18hex 0012 Battery voltage
- 18hex 0012 Brake pedal sensor
- 18hex 0012 CAN bus
- 18hex 0012 No CAN message
- 18hex 0012 High supply voltage
- 18hex 0012 Engine shutdown due to too high temperatures in the aftertreatment system.
- 18hex 0012 Engine shutdown due to too high temperatures in the aftertreatment system.
- 18hex 000012 The temperature in the exhaust gas aftertreatment system is too high
- 18hex 0012 Extra sensor 1
- 18hex 0012 Rotational speed sensor
- 18hex 0012 Headlamp wiper and washer