Operation CHARM: Car repair manuals for everyone.

Manufacturer Code Charts: 2521


[8] Check system 'Starter control'.: Start attempt without starter actuation


Possible cause:

- Starter actuation
Affected functions:

- Engine start

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Test 1: Test starter control.

1. Test starter control.
Actual value: Terminal (50)
Test prerequisite

- Start engine.
Status of relevant actual value:
- Terminal 50 (input):Warning!

- Terminal 50 (output, starter actuation):Warning!
Set/actual value comparison

- ON
Question

- Is the actual value o.k.?


YES
The actual value is okay.Possible cause and remedy

- 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..
- Replace component N10/1 (Driver-side SAM control unit with fuse and relay module).
End of test

NO
The measurement value is not OK.Possible cause and remedy

- Check line(s) from component N3/9 (CDI control unit) to component N10/1 (Driver-side SAM control unit with fuse and relay module) as per wiring diagram.
- Test relay N10/1kL (Starter relay), replace if necessary.
End of test