Test results

Check that the CAN connections between the automated/robotised control unit and the Body Computer are not faulty. In particular, that there are no open circuit or short circuit problems

 See E1050 CAN CONNECTION LINES

Go to Step 2

There are faulty connections

Restore or, if necessary, replace the wiring

Check the Body Computer power supply is correct.

Go to Step 3

Power supply not correct

Restore the correct power supply.

For version with robotised gearbox:

Replace the automated gearbox control unit

Op. 2127E10 HYDRAULIC SPEED SELECTION SYSTEM CONTROL UNIT - R.R.

and check it is working correctly

Version with automatic gearbox:

Replace the automatic gearbox control unit and check that it is working properly

End of diagnosis

The fault persists.

Go to Step 4

Replace the Body Computer

 Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.

End of diagnosis