2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 337

Test 4.1.5: Inspect operation and spray pattern of component Y62y1 (Fuel injector cylinder 1).

4.1.1. Test actuation of component Y62y1 (Fuel injector cylinder 1).

Test prerequisite

- Coolant temperature > 80锟斤拷 C

- Engine RUNNING

Warning!Communication with ECU required.

4.1.2. Test signal voltage of component Y62y1 (Fuel injector cylinder 1).

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.

- ConnectionMeasuring system

- Observe oscilloscope pattern between sockets [M.23] 23 and [F.3] 99 of the 126-pole socket box tester.

- Run engine.

Note

- Measuring system:Communication with ECU required

4.1.3. Check internal resistance of component Y62y1 (Fuel injector cylinder 1).