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Line to control unit N118/3 (Left fuel pump control unit) / Line to control unit N118/4 (Right
fuel pump control unit) : Short
Line to control unit N118/3 (Left fuel pump control unit) / Line to control unit N118/4 (Right fuel pump control unit) : Short
circuit to ground (P0628)
Possible cause:
Fuel system control unit
Affected functions:
Engine start
Test 1: Signal wire PWM signal Fuel pump
1. Signal wire PWM signal Fuel pump
Figure legend
A ConnectionTest cable 35pin socket box
001 Sockets of component N3/10 (MESFI [ME] control unit)
05 35pin socket box
050 126pin socket box
108 Test cable 266 589 01 63 00
N3/10 (MESFI [ME] control unit)
II 163ConnectionTest cable
III 64126ConnectionTest cable
Warning!
Connection A of test cable 108 may NOT be connected to connection B of the 126pin socket box (050).2010 Mercedes Benz E 63 AMG Sedan (212.077) V86.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 88
Test sequence
Switch off ignition.
Connect socket box (126pin) to component N3/10 (MESFI [ME] control unit).
Measure direct current with multimeter between sockets [F.4] 100 and [F.17] 113 of the 126pole socket box tester.
Switch on ignition.
Specified value
Amperage[8...15] mA
Question
Is the measurement value OK?
YES
The measurement value is OK.Other possible cause of fault
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..
B4/15 (Fuel pressure sensor)
End of test
NO
The measurement value is not OK.Possible cause and remedy
Check lines to components N118/3 (Left fuel pump control unit) and N118/4 (Right fuel pump control unit) as per wiring diagram.
Further possible remedies
Read fault memories of the control units N118/3 (Left fuel pump control unit) and N118/4 (Right fuel pump control unit).
Line to control unit N118/3 (Left fuel pump control unit) / Line to control unit N118/4 (Right
fuel pump control unit) : Short
Line to control unit N118/3 (Left fuel pump control unit) / Line to control unit N118/4 (Right fuel pump control unit) : Short
circuit to ground (P0628)
Possible cause:
Fuel system control unit
Affected functions:
Engine start
Test 1: Signal wire PWM signal Fuel pump
1. Signal wire PWM signal Fuel pump
Figure legend
A ConnectionTest cable 35pin socket box
001 Sockets of component N3/10 (MESFI [ME] control unit)
05 35pin socket box
050 126pin socket box
108 Test cable 266 589 01 63 00
N3/10 (MESFI [ME] control unit)
II 163ConnectionTest cable
III 64126ConnectionTest cable
Warning!
Connection A of test cable 108 may NOT be connected to connection B of the 126pin socket box (050).2010 Mercedes Benz E 63 AMG Sedan (212.077) V86.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 88
Test sequence
Switch off ignition.
Connect socket box (126pin) to component N3/10 (MESFI [ME] control unit).
Measure direct current with multimeter between sockets [F.4] 100 and [F.17] 113 of the 126pole socket box tester.
Switch on ignition.
Specified value
Amperage[8...15] mA
Question
Is the measurement value OK?
YES
The measurement value is OK.Other possible cause of fault
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..
B4/15 (Fuel pressure sensor)
End of test
NO
The measurement value is not OK.Possible cause and remedy
Check lines to components N118/3 (Left fuel pump control unit) and N118/4 (Right fuel pump control unit) as per wiring diagram.
Further possible remedies
Read fault memories of the control units N118/3 (Left fuel pump control unit) and N118/4 (Right fuel pump control unit).
