Checking the output signal

Activate the horn.

HINT: Listen for a click from the relay to determine whether the fault is in the relay circuit or in the wiring for the horn itself. 

1. The horn is functioning.
2. The relay clicks.
3. The relay does not click.

Fig 1: Identifying VCT2000

Courtesy of VOLVO CARS OF NORTH AMERICA.

• 1 

  OKAY:  Troubleshooting has been completed.

• 2 

  Refer to Checking the wiring for the horn 

• 3 

  Refer to Checking the cable for the relay