P240B

Actuation of the heater in the diagnostic module of the evaporative emission control system has a short circuit to ground.


Possible cause:

- A101 (Tank leak diagnostic module)
Affected functions:

- Fuel system

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

Test 1: Check component A101 (Tank leak diagnostic module).

1. Check component A101 (Tank leak diagnostic module).

Test 1.1: Test current consumption of heating of component A101 (Tank leak diagnostic module).

1.1. Test current consumption of heating of component A101 (Tank leak diagnostic module).
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

- Measure direct current with multimeter between socket [F.4] 100 of the 126-pole socket box tester and socket [F.45] 15 of the 35-pole socket box tester.
- Switch on ignition.
Specified value

- Amperage[0.15...0.45] 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

- Test voltage supply of circuit 87.
- Check lines from component N3/10 (ME-SFI [ME] control unit) to component A101 (Tank leak diagnostic module).
- Inspect connector at component A101 (Tank leak diagnostic module) for damage, loose contacts and corrosion, repair if necessary.
- A101 (Tank leak diagnostic module)
End of test