P2015

Purge control system has leak (function chain) (P0440)

Test 1: Check component B4/3 (Fuel tank pressure sensor). ( Valid for (USA) )

1. Check component B4/3 (Fuel tank pressure sensor). ( Valid for (USA) )

Test 1.1: Check component B4/3 (Fuel tank pressure sensor) by means of actuation.

Test 1.2: Check power supply of component B4/3 (Fuel tank pressure sensor).

1.1. Check component B4/3 (Fuel tank pressure sensor) by means of actuation.
Figure legend

- 019Vacuum tester
- bPurge line from activated charcoal canister to component Y58/1 (Purge control valve)
- Y58/1 (Purge control valve)
Test sequence

- Switch off ignition.
- Detach purge line to activated charcoal filter at component Y58/1 (Purge control valve) and connect vacuum tester to purge line.
- Switch on ignition.
- Actuate component Y58/4 (Activated charcoal canister shut-off valve).(Operate pushbutton F2.)







Component M4/7 (Engine and AC electric suction fan with integrated control) runs with an on/off ratio of 30 % during the actuations for safety reasons.

Use the vacuum tester to set a vacuum of 20...25 mbar.Question

- Is the vacuum achieved?


YES
Warning!Communication with ECU required.


NO
Warning!Communication with ECU required.


1.2. Check power supply of component B4/3 (Fuel tank pressure sensor).
Test prerequisite

- The actual value is not o.k.
- The power supply of component N3/10 (ME-SFI [ME] control unit) is OK.
Test sequence

- Switch off ignition.
- 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).
- Measure direct voltage with multimeter between socket (5.5) 5 of the 35-pole socket box tester and socket (4.10) 95 of the 126-pole socket box tester.
- Switch on ignition.
Specified value

- Voltage[4.7...5.3] V
Question

- Is the measurement value OK?


YES
The measurement value is OK.Further possible causes of fault

- Check lines from component N3/10 (ME-SFI [ME] control unit) to component B4/3 (Fuel tank pressure sensor).
- B4/3 (Fuel tank pressure sensor)
End of test

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

- Check lines from component N3/10 (ME-SFI [ME] control unit) to component B4/3 (Fuel tank pressure sensor).
- N3/10 (ME-SFI [ME] control unit)
End of test