For 1990-2009 cars only
- Adjust the horn current until the current is between 4.5 -5.5 Amps at 12 Volts.
- Adjustments should be made in one quarter turn (90 degree) increments.
- Loosen the adjusting screw locknut.
- Turn the adjusting screw counterclockwise in order to increase the current.
- Turn the adjusting screw clockwise in order to decrease the current.
- The current limit may be set too low if the horn fails to sound in cold weather. The current limit may still be within the amperage limit (4.5 -5.5 Amps at 12 Volts).
- Turn the adjusting screw clockwise in order to increase the current draw until the horn sounds.
Important: Do NOT make the adjustment unless the horn fails to sound in cold weather. A current increase on a properly functioning horn could result in damage to the horn.
