Airbag B05 911 Turbo (996)69 · Diagnosis/troubleshooting

Airbag B05 911 Turbo (996)69 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check coding ♦Check the belt buckle coding in Only in USA vehicles Correct coding, the menu item "Extract coding " must the belt buckle switch off ignition be coded "active" and remove key. ⇒ Step 2 Then switch on igni- tion, read the fault memory again and erase → End 2 Check belt buckle ♦Switch off ignition approx. 400 Ω ⇒ Step 7 ⇒ Step 3 ♦Disconnect the plug connection X16 ♦Driver’s belt buckle not con- nected ♦Measure resistance in plug to driver’s seat between pin 7 and pin 8 3 Check belt buckle ♦Connect belt buckle approx. 100 Ω ⇒ Step 7 ⇒ Step 4 ♦Measure resistance in plug to driver’s seat between pin B 7 and pin B 8 4 Check belt buckle wiring ♦Switch on ignition 0 V Repair wiring har- for short circuit to B+ ⇒ Step 5 ness ♦Check the voltage in plug to → End driver’s seat between pin B7 and ground 5 Check the belt buckle wir- ♦Check the resistance in plug to ∞ Ω Repair wiring har- ing for short circuit to driver’s seat between pin B7 ⇒ Step 6 ness ground and ground → End ♦Driver’s belt buckle not con- nected 6 Inspect the wiring harness to the airbag triggering unit for ⇒ Step 8 Repair wiring har- pinches and chafing damage. ness → End 7 ♦Replace driver’s belt buckle → End 8 ♦Replace triggering unit for airbag → End 69-16 page 2 6901 Fault codes 44, 45, 46, 50 44xxxB05 Printed in Germany – 20, 2002