Scania COO DTC 850 CSS control unit

COO Coordinator · Scania · 5 variants

Code 850 (decimal). Some diagnostic tools show it in hexadecimal as 0352.

In short

The coordinator has identified divergent information from the CSS control unit.

Variant 1

Applies to: COO10 (COO)

What does Scania COO fault code 850 mean?

The coordinator has identified divergent information from the CSS control unit.

What causes Scania DTC 850?

The fault may be due to: - The CSS control unit may be misconfigured or not programmed. - The coordinator may be misconfigured or not programmed.

How does the system react?

Red warning indication of a coordinator fault is displayed.

What are the symptoms?

Operational data cannot be stored while the fault is active.

How to fix Scania COO fault code 850?

  1. Check whether the CSS control unit or the coordinator has an incorrect chassis serial number.
  2. If so, carry out spare part programming on the control unit with anomalous software.

Variant 2

Applies to: COO11 (COO)

Detection

The coordinator has identified divergent information from the CSS control unit.

Possible cause

The fault may be due to: - The CSS control unit may be misconfigured or not programmed. - The coordinator may be misconfigured or not programmed.

Symptoms

Operational data cannot be stored while the fault is active.

How to fix

  1. Use SWS to check whether the CSS control unit or coordinator has an incorrect chassis serial number.
  2. If so, carry out spare part programming on the control unit with deviating software.

Variant 3

Applies to: COO8 (COO)

Detection

The coordinator has identified divergent information from the CSS control unit.

Possible cause

The fault may be due to: - The CSS control unit may be misconfigured or not programmed. - The coordinator may be misconfigured or not programmed.

Symptoms

Operational data cannot be stored while the fault is active.

How to fix

  1. Check whether the CSS control unit or the coordinator has an incorrect chassis serial number.
  2. If so, carry out spare part programming on the control unit with anomalous software.

Variant 4

Applies to: COO9 (COO)

Detection

The coordinator has identified divergent information from the CSS control unit.

Possible cause

The fault may be due to: - The CSS control unit may be incorrectly set or not programmed. - The coordinator may be incorrectly set or not programmed.

Symptoms

Operational data cannot be stored while the fault is active.

How to fix

  1. Check whether the CSS control unit or the coordinator has an incorrect chassis serial number.
  2. If so, carry out spare parts programming of the incorrectly programmed control unit.

Variant 5

Applies to: COO8

Detection

The coordinator has identified divergent information from the CSS control unit.

Possible cause

The fault may be due to: - The CSS control unit may be incorrectly set or not programmed. - The coordinator may be incorrectly set or not programmed.

System reaction

The symbol for a serious general system malfunction comes on in the instrument cluster. Operational data cannot be stored while the fault is active.

How to fix

  1. Use SDP3 to check whether the CSS control unit or coordinator has an incorrect chassis serial number.
  2. If so, carry out spare parts programming of the incorrectly programmed control unit.

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

Code 850 in other Scania systems

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