Manufacturer Code Charts: 2281

The input for the digital crash signal has a short circuit to positive.


Possible cause:

- Test voltage level on crash signal wire.
Affected functions:

- Airbag / SRS supplemental restraint system

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Test 1: Test voltage level on crash signal wire.

1. Test voltage level on crash signal wire.
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).







Test prerequisite

- Fault code 'P2281' present
Test sequence

- Measure direct voltage with multimeter between socket [F.4] 100 of the 126-pole socket box tester and socket [F.52] 22 of the 35-pole socket box tester.
Specified value

- Voltage<1 V
Question

- Is the measurement value OK?


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

- Fault in control unit AB: Read out fault memory of control unit N2/7 (Restraint systems control unit).
End of test

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

- Line from component N2/7 (Restraint systems control unit) to component N3/10 (ME-SFI [ME] control unit)
- Read fault memory from control unit AB and rectify faults.
End of test