20BA

Y62y12 (Fuel injector cylinder 12) (P0212, P0294, P0295)


Possible cause:

- Y62y12 (Fuel injector cylinder 12)
Affected functions:

- Engine diagnosis
- Engine running

-------------------------------------------------

Test 1: Check component Y62 (Fuel injectors).

1. Check component Y62 (Fuel injectors).

Test 1.1: Check component Y62y12 (Fuel injector cylinder 12).

1.1. Check component Y62y12 (Fuel injector cylinder 12).

Test 1.1.1: Test actuation of component Y62y12 (Fuel injector cylinder 12).

Test 1.1.2: Check internal resistance of component Y62y12 (Fuel injector cylinder 12).

Test 1.1.3: Test leaktightness and ejection pattern of component Y62y12 (Fuel injector cylinder 12).

1.1.1. Test actuation of component Y62y12 (Fuel injector cylinder 12).
Warning!Communication with ECU required.

1.1.2. Check internal resistance of component Y62y12 (Fuel injector cylinder 12).
Test prerequisite

- Fault code '20BA' present
Status of relevant fault code:Test sequence

- Switch off ignition.
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Measure resistance with multimeter between sockets (2.24) 33 and (3.4) 37 of the 126-pole socket box tester.
Specified value

- Resistor[11...17]ohms
Question

- Is the measurement value OK?


YES
The measurement value is OK.Note

- 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..


NO
The measurement value is not OK.Test sequence

- Switch off ignition.
- Connect shop-made test cable set to component Y62y12 (Fuel injector cylinder 12).
- Measure resistance with multimeter between pins (Y62) 1 and (Y62) 2
Specified value

- Resistor[14...20]ohms
Question

- Is the measurement value OK?


YES
The measurement value is OK.Possible cause and remedy

- Lines to component Y62y12 (Fuel injector cylinder 12)


NO
The measurement value is not OK.Possible cause and remedy

- Y62y12 (Fuel injector cylinder 12)


1.1.3. Test leaktightness and ejection pattern of component Y62y12 (Fuel injector cylinder 12).
Inspect component Y62y12 (Fuel injector cylinder 12) for leaks.
Test sequence

- Switch off ignition.
- Remove fuel rail together with component Y62y12 (Fuel injector cylinder 12).
- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).
- Connect socket box (35-pin) to component N3/10 (ME-SFI [ME] control unit).
- Switch on ignition.
- Carry out actuation of component M3 (Fuel pump).
Specified value

- Component Y62y12 (Fuel injector cylinder 12) must not drip.
Proceed to 'Actuation' with F2

Warning!Communication with ECU required.