Scania MBS DTC 899 Water valve for ramp system, short circuited

Q: What does Scania MBS fault code 899 mean?

Water valve for ramp system, short circuited. The voltage of the pin to the water valve ramp system is outside a valid value. Code 899 (decimal). Some diagnostic tools show it in hexadecimal as 0383.

Q: How to fix Scania MBS fault code 899?

- Check the ramp system water valve. - Check the cable harness and harness-to-component connector to the ramp system water valve.

MBS MBS control unit · Scania

Code 899 (decimal). Some diagnostic tools show it in hexadecimal as 0383.

In short

The voltage of the pin to the water valve ramp system is outside a valid value.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 899 mean?

The voltage of the pin to the water valve ramp system is outside a valid value.

What causes Scania DTC 899?

- The pin of the water valve is short-circuited to earth or battery voltage. - Fault in the cable harness or harness-to-component connector to the water valve.

How does the system react?

The water valve for the ramp system cannot be adjusted.

What are the symptoms?

- Heating with the heating system is working poorly. - The ramp heating is not working correctly.

How to fix Scania MBS fault code 899?

Check the ramp system water valve.
Check the cable harness and harness-to-component connector to the ramp system water valve.

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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