If there are components of an additional passive safety system nearby, during the execution of work see ch. Additional passive safety system (SRS).
1. Remove the steering column cover (see ch. Steering).
2. Disconnect the 4-pin connector from the coiled wire.
3. Check for continuity between pin #2 of the 4-pin connector and «weight» in each switch position and check that continuity is present only in the case indicated by the line in the table.
If there is continuity, the horn switch is OK.
If there is no conductivity, proceed to step 4.
4. Check continuity between track #2 of the 4-track connector and the horn switch pin on the steering wheel.
If there is no continuity, replace the coiled wire.
If there is continuity, replace the steering wheel.
5. After completing the work, check the following:
The airbag warning light on the instrument cluster comes on after turning the ignition key to the ON position (II) and goes out after 6 seconds.
The klaxons are working.