Manufacturer Code Charts: 2351

[2] N3/9 (CDI control unit) (CJ940): Supply voltage Closed MINOR

Test 1: Test voltage supply of circuit 87.

1. Test voltage supply of circuit 87.
Test prerequisite

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

- Check voltage supply at fuses 43, 44 and 57.
- Measure direct voltage with multimeter between ground socket and socket N10/1f43 (Fuse 43)
- Measure direct voltage with multimeter between ground socket and socket N10/1f44 (Fuse 44)
- Measure direct voltage with multimeter between ground socket and socket N10/1f57 (Fuse 57)
- Switch on ignition.
Specified value

- Voltage[11...14] V
Question

- Is the measurement value OK?


YES
The measurement value is OK.Possible cause and remedy

- Inspect fuses, replace if necessary.
- 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 measurement value is not OK.Possible cause and remedy

- Check component N10/1kI (Circuit 87 relay, engine).
- Test wiring from component N3/9 (CDI control unit) to component N10/1 (Driver-side SAM control unit with fuse and relay module) with an ohmmeter for short circuit (positive or negative) and repair, if necessary.
End of test