2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 917

- Wiring from control unit N3/10 (ME-SFI [ME] control unit) to component Y22/9 (Intake manifold tumble flap switchover valve)

- Y22/9 (Intake manifold tumble flap switchover valve)

1186

Y22/9 (Intake manifold tumble flap switchover valve) : Short circuit to ground (P2009)

Test 1: Check power supply of component N3/10 (ME-SFI [ME] control unit).

Test 2: Arrangement of fuses

Test 3: Power supply

Test 4: Check component Y22/9 (Intake manifold tumble flap switchover valve).

Test 5: Possible cause:

- Y22/9 (Intake manifold tumble flap switchover valve)

- N10/1kI (Circuit 87 relay, engine)

- N10/1f57 (Fuse 57)

- Voltage supply via component Z7/36 (Circuit 87 M2e connector sleeve)

Affected functions:

- Engine output

1. Check power supply of component N3/10 (ME-SFI [ME] control unit).

Test 1.1: Test voltage supply of circuit 87. ( Check using actual value )

Test 1.2: Test voltage supply of circuit 30.

Test 1.3: Test voltage supply of circuit 87.

Test 1.4: Test current consumption of component N10/1kR (Circuit 87 relay, engine).

Test 1.5: Test voltage supply of circuit 15.

1.1. Test voltage supply of circuit 87. ( Check using actual value )

Test prerequisite

- The voltage test at component G1 (Battery) is o.k.

- Ignition ON

Status of relevant actual value:

- Battery voltage:Warning! Communication with ECU required.

Specified value

- Battery voltage[11.0 ... 15.0] V

Question:Is the actual value o.k.?

YES

The actual value is okay.End of test

NO

The actual value is not o.k.Possible cause and remedy

- Test voltage supply of circuit 30.

- Test voltage supply of circuit 87.

1.2. Test voltage supply of circuit 30.

Connect socket box to component N3/10 (ME-SFI [ME] control unit).

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