- 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)?
1.1.3.2.1.13. No further information available.
1.1.3.2.2. Resistance test of engine compartment CAN
Test 1.1.3.2.2.1: Test total resistance of engine compartment CAN.
Test 1.1.3.2.2.2: Test terminating resistor of component X30/5 (Left voltage distributor (CAN) connector).
Test 1.1.3.2.2.3: Test terminating resistor of CAN element in control module N3/10 (ME-SFI [ME] control unit).
1.1.3.2.2.1. Test total resistance of engine compartment CAN.
Test 1.1.3.2.2.1.1: Perform measurement at component X30/5 (Left voltage distributor (CAN) connector).
Test 1.1.3.2.2.1.2: Perform measurement at component N3/10 (ME-SFI [ME] control unit).
1.1.3.2.2.1.1. Perform measurement at component X30/5 (Left voltage distributor (CAN) connector).
Test total resistance of engine compartment CAN.
Figure legend
- X30/5 (Left voltage distributor (CAN) connector)
Test sequence
- Switch off ignition.
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