Scania DCS DTC 1048603 Window winder motor on the driver's side, synchronisation fault

DCS DCS control unit · Scania · 2 variants

Code 1048603 (decimal). Some diagnostic tools show it in hexadecimal as 10001B.

In short

The Hall effect sensor in the window winder motor M9 and the window winder motor provide varying information about the window adjustment direction or speed.

Variant 1

Applies to: DCS1 (DCS)

What does Scania DCS fault code 1048603 mean?

The Hall effect sensor in the window winder motor M9 and the window winder motor provide varying information about the window adjustment direction or speed.

What causes Scania DTC 1048603?

- Fault in the harness-to-component connectors or cable harness of the window winder motor M9. - The window winder motor is not connected correctly. - Incorrect parameter settings for the window winder motor. - Fault on the window winder motor.

How does the system react?

The window can only be adjusted incrementally.

What are the symptoms?

If the window winder motor is not connected correctly, the window cannot be adjusted at all.

How to fix Scania DCS fault code 1048603?

  1. Check the harness-to-component connectors and cable harness of the window winder motor M9 and the Hall effect sensor.
  2. Calibrate the window position.
  3. Run Calibration of window position, driver area.
  4. Check the window winder motor.

Variant 2: Hall effect sensor in the window winder motor on the driver's side, synchronisation fault

Applies to: DCS1

Detection

The Hall effect sensor in the window winder motor M9 and the window winder motor provide varying information about the window adjustment direction or speed.

Possible cause

- Fault in the harness-to-component connectors or cable harness of the window winder motor M9. - The window winder motor is not connected correctly. - Incorrect parameter settings for the window winder motor. - Fault on the window winder motor.

System reaction

The window can only be adjusted incrementally. If the window winder motor is not connected correctly, the window cannot be adjusted at all.

How to fix

  1. Check the harness-to-component connectors and cable harness of the window winder motor M9 and the Hall effect sensor.
  2. The Hall effect sensor is connected to control unit pins B24 (direction output signal), B25 (speed output signal), B28 (earth) and B29 (voltage).
  3. The window winder motor is connected to control unit pins A2 (voltage) and A3 (voltage).
  4. Calibrate the window position.
  5. Run Calibration of window position, driver area.
  6. Check the window winder motor.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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