Scania COO DTC 1043 Backup steering system, implausible parameter value

COO Coordinator · Scania · 2 variants

Code 1043 (decimal). Some diagnostic tools show it in hexadecimal as 0413.

In short

The parameter is below 10 radians.

Variant 1: The end position protection parameter is set below 580° or above 1,150°

Applies to: COO10 (COO)COO11 (COO)

What does Scania COO fault code 1043 mean?

The parameter is below 10 radians.

What causes Scania DTC 1043?

Incorrect setting of the parameter for end position protection.

How does the system react?

A yellow warning indication is displayed.

What are the symptoms?

Differential brake steering will not work if the hydraulics fail.

How to fix Scania COO fault code 1043?

- Spare parts program the vehicle.

Variant 2

Applies to: COO8 (COO)

Detection

The backup steering system for differential braking interprets an implausible parameter value.

Possible cause

Faulty parameter value set.

System reaction

A yellow warning indication is displayed. Differential braking steering may not activate in the event of a hydraulic fault.

Symptoms

It may be difficult to turn the vehicle due to a hydraulic fault.

How to fix

  1. Run the wizard Calibration of electronic end positions for redundant brake control system.
  2. Carry out a spare part programming on the COO 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 1043 in other Scania systems

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