996 Turbo diagnostic manual — Turbo applicability only / PAGE 215
69-9Fault codes 4, 5, 20, 21, 36 · Ignition circuit, driver
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911 Turbo (996) Airbag B05 69
69-9Fault codes 4, 5, 20, 21, 36
Ignition circuit, driver
Diagnostic conditions
• Ignition on
Possible cause of fault
♦Short circuit to B+/ground or open circuit in the wiring between
the driver’s airbag unit and the airbag triggering unit
♦ Driver’s airbag unit faulty
♦Triggering unit for airbag faulty
Affected terminals
Terminals 10 and 11
Note!
If the fault memory is cleared, the ignition must be switched off, the
ignition key removed and the ignition switched on again in order to
check the fault path. Only in this way is another self-test carried out.
Diagnosis/troubleshooting
Work instruction Display OK If not OK
1 Remove driver’s airbag unit. ⇒ Step 2
2 Check driver’s airbag unit ♦Attach the test tool Replace airbag unit ⇒ Step 3
No. 9516 instead of the air- → End
bag unit.
♦Erase fault memory
♦Switch off ignition
♦Remove ignition key
♦Switch on ignition
♦Read out fault memory
6901 Fault codes 4, 5, 20, 21, 36 69-9 page 1
Printed in Germany – 20, 2002 4xxxxB05
This is a source reference. Confirm exact model applicability in the original material.
