YES
Note
- 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..
End of test
NO
The measured value is not within the specified value range.Possible cause and remedy
- Cables between component N10/1 (Driver-side SAM control unit with fuse and relay module) and control module N63/1 (DTR control
module)5A
- Cable for voltage supply
1.1.3.2.1.12. Check power supply at control unit N71 (Headlamp range adjustment control module).
If the fault code is not current, it may be deleted. In this case, the battery voltage was too low over an extended period.Charge the battery, if
necessary.Question:Is there a current undervoltage fault is several control modules?Note:This fault could result in consequential faults. You should
therefore process this fault first and then erase the fault memory.
YES
Possible cause and remedy
- Battery voltage too low.Test battery.Charge battery, replace if necessary.
- If fault occurs again:Check alternator.Communication with ECU required
- The quiescent current is too high.Test quiescent current.
NO
Figure legend 1:N71 (Headlamp range adjustment control module)Figure legend 2:N10/1 (Driver-side SAM control unit with fuse and relay
module)Test prerequisite
- The relevant actual value is not okay.
- Battery voltage is OK.
- Fuse N10/1f52 (Fuse 52) is OK.
Test sequence
- Switch off ignition.
- Disconnect connector at component N71 (Headlamp range adjustment control module).
- Measure direct voltage with multimeter between sockets (N71) 20 and (N71) 19
- Switch on ignition.
Specified value:Voltage = [11.0...14.5] VQuestion
- Is the measurement value OK?
