My mechanic friend is trying to fit a replacement airbag module into a 2002 Fabia. Apparently the new module will not talk to the system, and will also not accept the soft coding from the old module.

Anyone know the usual protocol with installing a replacement airbag module? It is the same part number too.

Hope the following helps, but it's not 100% clear, as it's copied from a PDF file. It also refers to Skoda Diag kit and not VAGCOM.

Coding airbag control unit

Coding is necessary if a new airbag control unit is used.

Conditions:

• Warning lamp for airbag -K75- flashes continuously.

• Airbag control unit -J234- was replaced.

Readout on display:

– Enter function 07.

Readout on display:

– Confirm the entry with key .

Readout on display:

– Enter code number in accordance with the table and

confirm with .

Vehicle system test →

→ The fault memory is erased

Note

Caution! →

Fault memory was not interrogated

Vehicle system test

Select function XX

Vehicle system test Q

06 End output

Q

Vehicle system test HELP

Enter address word XX

Note

Vehicle system test HELP

Select function XX

Vehicle system test Q

Coding control unit

Q

Coding control unit

Enter code number XXXXX (0-32767)

Q

Vehicle equipment Parts No. Control unit code

number

Driver airbag

belt tensioner (electrically ignited)

side airbags

6Q0 909 605 H 011) 12337

6Q0 909 605 H 072) 12343

1C0 909 605 H 073) 12343

1C0 909 605 K 044) 12340

FABIA 2000 􀂳 Body Work

Edition 01.05 Self-diagnosis for Airbag System I

S00.5319.15.20

01-5 page 9

01

– If the following message is displayed, the coding is

done:

The control unit identification number, the control unit

code number and the workshop code are displayed.

– Press key.

Readout on display:

– Ending output ⇒ 01-5 page 8.

– If the following message is displayed after entering the

code number, the coding is incorrect:

In this case the control unit was not coded with the data

required for the vehicle. Check whether the right control

unit was fitted on the vehicle (compare part number and

Driver and front passenger airbag

belt tensioner (electrically ignited)

side airbags

6Q0 909 605 H 021) 12338

6Q0 909 605 H 082) 12344

1C0 909 605 H 083) 12344

1C0 909 605 K 054) 12341

Driver airbag

belt tensioner (electrically ignited)

6Q0 909 605 H 031) 12339

6Q0 909 605 H 092) 12345

1C0 909 605 H 093) 12345

1C0 909 605 K 064) 12342

Driver and front passenger airbag

belt tensioner (electrically ignited)

6Q0 909 605 H 041) 12340

6Q0 909 605 H 0A2) 12353

1C0 909 605 H 0A3) 12353

1C0 909 605 K 074) 12343

Driver airbag

belt tensioner (mechanically ignited)

6Q0 909 601 C 012) 12337

1C0 909 601 C 013) 12337

1C0 909 601 A 0T4) 12372

Driver and front passenger airbag

belt tensioner (mechanically ignited)

6Q0 909 601 C 022) 12338

1C0 909 601 C 023) 12338

1C0 909 601 A 114) 12593

Driver and front passenger airbag

belt tensioner (mechanically ignited)

switch for front passenger airbags

1C0 909 601 A 0S4) 12371

Driver and front passenger airbag

belt tensioner (mechanically ignited)

side airbags

switch for front passenger airbags

1C0 909 605 K 014) 12337

Driver and front passenger airbag

belt tensioner (electrically ignited)

switch for front passenger airbags

1C0 909 605 K 024) 12338

1) Valid for vehicles 􀂳 11.00

2) Valid for vehicles 12.00 􀂳 02.01

3) Valid for vehicles 03.01 􀂳 07.02

4) Valid for vehicles 08.02 􀂳

Vehicle equipment Parts No. Control unit code

number

6Q0909605 H 02 AIRBAG VW5 0003 →

Coding 12338 WSC XXXXX

→

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Fault →