Y49/7 (Right camshaft exhaust solenoid) : Short circuit to positive (P2091)

P2091
Y49/7 (Right camshaft exhaust solenoid) : Short circuit to positive (P2091)
Possible cause:
­ Y49/7 (Right camshaft exhaust solenoid)
Affected functions:
­
­
Engine diagnosis
Engine output
­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­­
Test 1: Check component Y49/7 (Right camshaft exhaust solenoid).
1. Check component Y49/7 (Right camshaft exhaust solenoid).
Test 1.1: Test actuation of component Y49/7 (Right camshaft exhaust solenoid).
Test 1.2: Test current consumption of component Y49/7 (Right camshaft exhaust solenoid).
1.1. Test actuation of component Y49/7 (Right camshaft exhaust solenoid).
Test prerequisite
­ Engine at idle
­ Vehicle stationary
­ Coolant temperature > 80? C
­ Time since engine start> 60 s
Status of relevant actual value:
­ Temperature of coolant:Warning! Communication with ECU required.
Note
­
After the actuation it may be necessary to erase the fault memory!2010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Proceed to 'Actuation' with F2
1.2. Test current consumption of component Y49/7 (Right camshaft exhaust solenoid).
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).
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 [M.24] 24 of the 126­pole socket box tester.
­ Switch on ignition.
Testing of maximum power consumption may be conducted for no longer than 5 s.Specified value
­ Amperage[1.0...1.8] A
Question
­
Is the measurement value OK?
YES
The measurement value is OK.End of test
NO
The measurement value is not OK.Possible cause and remedy
Page 9462010 Mercedes Benz E 63 AMG Sedan (212.077) V8­6.3L (156.985)
Copyright ? 2013, ALLDATA
10.52SS
Page 947
­ K40/4f43 (Fuse 43)
­ Line from component Y49/7 (Right camshaft exhaust solenoid) to component Z7/35 (Circuit 87 M1e connector sleeve)
­ Line from component Y49/7 (Right camshaft exhaust solenoid) to component N3/10 (ME­SFI [ME] control unit)
­ Y49/7 (Right camshaft exhaust solenoid)
End of test