2010 Mercedes Benz C 300 4MATIC (204.081) V6-3.0L (272.948)
A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts 0491
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
2010 Mercedes Benz C 300 4MATIC (204.081) V6-3.0L (272.948) Copyright ? 2013, ALLDATA 10.52SS Page 2
- 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
