Fault-tracing information

Check whether the rheostat function is working on the hazard warning flasher button by increasing and lowering the instrument lighting.

HINT: If the rheostat function is not working in the hazard warning flasher button, the fault is in the head unit/audio module. 

Is the rheostat flash warning button working? 

• YES 

  Refer to Replacing head unit / audio module 

• NO 

  FAULT NOT FOUND:  Troubleshooting has been completed.