13C800

The supply voltage of component N14/3 (Glow output stage) is too low (undervoltage).


Possible cause:

- N14/3 (Glow output stage)
Affected functions:

- Power generation

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Test 1: Check component N14/3 (Glow time output stage).

1. Check component N14/3 (Glow time output stage).
Check terminal 30.
Figure legend

- N14/3 (Glow time output stage)
- N14/3x1Power supplyN14/3 (Glow time output stage)
- N14/3x2Power supplyR9 (Glow plugs)/LIN bus/Ground
Test sequence

- Switch off ignition.
- Disconnect connector N14/3x1 at component N14/3 (Glow time output stage).
- Measure direct voltage with multimeter between ground and socket (N14/3x1)
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..
- Component N14/3 (Glow time output stage) is defective.
End of test

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

- Check wire between components N14/3 (Glow time output stage) and G2 (generator) for good contact, loose contact and discontinuity.
End of test