- In the event of stored faults with a high fault frequency count or in the event of customer complaints, check lines and connectors for loose
contact and corrosion..
- Check alternator.
End of test
NO
The actual value is not o.k.Test sequence
- Switch off ignition.
- Detach sockets A and C at component N73 (EIS [EZS] control unit).
- Measure direct voltage with multimeter between sockets (N73) B.2 and (N73) C.1
Specified value
- Voltage [11.0...14.5] V
Question
- Are the measurement values OK?
YES
The measurement values are OK.Possible cause and remedy
- Inspect connector B,C at control unit N73 (EIS [EZS] control unit) for damage, correct connection, loose contact and corrosion and repair, if
necessary.
- N73 (EIS [EZS] control unit)
End of test
NO
The measurement values are not OK.Possible cause and remedy
- Check lines between components N73 (EIS [EZS] control unit) and N10/1 (Driver-side SAM control unit with fuse and relay module) and
repair or replace if necessary.
- Fuse and component F34 (Interior fuse box)
Continue with button F2
Possible cause and remedy
- Check component N10/1 (Driver-side SAM control unit with fuse and relay module).
Question
- Continue troubleshooting in control unit N10/1 (Driver-side SAM control unit with fuse and relay module)?
1.1.3.2.1.2. No further information available.
1.1.3.2.1.3. Check power supply at control unit N80 (Steering column module).
Manual check of supply voltage
Test prerequisite
- The fuses are OK.
- One of the fault codes 9010/9011 is present, or the associated actual value is not OK.
Test sequence
- Remove component N80 (Steering column module).
- Disconnect connector A at component N80 (Steering column module).
- Switch on ignition.
- Measure direct voltage with multimeter between sockets [N80] A.8 and [N80] A.9
Specified value
- Voltage [11.0...14.5] V
Question
- Is the measurement value OK?
YES
The measurement value is OK.Possible cause and remedy
