Applies to: EEC3
What does Scania EEC fault code 4626 mean?
Fault in the reductant doser temperature sensor and pressure sensor.
What causes Scania DTC 4626?
Possible causes: - Electrical fault in the power supply circuit for the temperature sensor and pressure sensor of the reductant doser. The circuit is open or short-circuited. - Electrical fault in the circuit for the temperature sensor of the reductant doser. Open or short circuit to ground in the circuit. - Electrical fault in the circuit for the pressure sensor of the reductant doser. The circuit is open or short-circuited to battery voltage.
How does the system react?
Reductant injection can cease. This results in higher exhaust emissions.
How to fix Scania EEC fault code 4626?
- Check the circuits for the following components:
- Voltage supply to the reductant doser temperature sensor and pressure sensor.
- The reductant doser temperature sensor.
- The reductant doser pressure sensor.
- More information about the electrical cables and pins on the control unit to which the components are connected is available in the diagnostic tool under the tab Check for the relevant components.
- See also Workshop Manual section 03-35 Electronic control system, E67.
- There is a general description of the different troubleshooting methods for electrical faults in the Workshop Manual, sub-group 16-70.
This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.