Manufacturer Code Charts: 2521

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

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
- 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..
- If no customer complaint exists, the fault can be erased.
End of test

NO
Power supply Terminal (50)
Test prerequisite

- The actual value is not o.k.
Test sequence

- Ignition: OFF
- Connect 35-pole socket box at engine wiring harness.
- Measure direct voltage with multimeter between ground and socket (F.44) 14 of the 35-pole socket box tester.
- Ignition ON
Specified value

- Voltage[11...14] V
Question

- Is the measurement value OK?


YES
The measurement value is OK.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 control unit N3/9 (CDI control unit).
End of test

NO
Test signal cable to component N10/1 (Front SAM control unit with fuse and relay module).
Figure legend

- N10/1 (Driver-side SAM control unit with fuse and relay module)
- N10/1kL (Starter relay)
Test sequence

- Switch off ignition.
- Connect 35-pole socket box at engine wiring harness.
- Remove relay N10/1kL (Starter relay).
- Measurement is performed at the contact slot of component N10/1kL (Starter relay).
- Measure resistance with multimeter between socket (F.44) 14 of the 35-pole socket box tester and socket (N10/1kL) 2
Specified value

- Resistor< 1,5ohms
Question

- Is the measurement value OK?







YES
The measurement value is OK.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..
- Test relay N10/1kL (Starter relay), replace if necessary.
End of test

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

- Test wiring/ plug connection.
End of test