Test Point 9

Fault Code 21

Ignition pill circuit 1 resistance too high/too low.

1. Remove driver airbag - unit.





2. Attach Special Tool 9516 in place of airbag unit.

3. Erase fault memory.

4. Check if fault is still present.

a) Replace airbag unit if the fault is no longer present.





b) If the fault is still present, disconnect the contact unit wiring and attach Special Tool 9516/1.

5. Erase fault memory.

6. Check if fault is still present.

a) Replace contact unit if the fault is no longer displayed.

b) If the fault is still present, check wiring harness for squeezed sections and chafing. Replace if required.

c) If no fault is detected in the wiring harness, replace the control unit.