0490

Relay 'Fuel pump'


Possible cause:

- N10/2kA (Fuel pump relay)
Affected functions:

- Engine start

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Test 1: Check component Relay 'Fuel pump'.

1. Check component Relay 'Fuel pump'.
Figure legend

- A -ConnectionTest cable 35-pin socket box
- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)
- 05 -35-pin socket box
- 050 -126-pin socket box
- 108 -Test cable 266 589 01 63 00
- N3/10 (ME-SFI [ME] control unit)
- II 1-63ConnectionTest cable
- III 64-126ConnectionTest cable
Warning!

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).
Continue to test with button F2







Test sequence

- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure direct current with multimeter between sockets [F.4] 100 and [F.17] 113 of the 126-pole socket box tester.
- Switch on ignition.
Specified value

- Amperage[0,1...0,3] A
- Component M3 (Fuel pump assembly) is switched on and is heard to run.
Question

- Is the measurement value OK?


YES
The test was okay.End of test

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

- Lines to component N10/2kA (Fuel pump relay)
- N10/2kA (Fuel pump relay)
End of test