GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Skylark 🢒 Body and Accessories 🢒 Horns 🢒 Horn Current Adjustment

    Object Number: 280046 Size: SH
  1. Adjust the horn current to 4.5-5.5 amperes.
  2. Turn the adjusting screw (1) clockwise in order to increase the current.
  3. Turn the adjusting screw (1) counterclockwise in order to decrease the current.
  4. Turn the adjusting screw 1/4 turn at one time. Do not turn the adjusting screw (1) too far. If the adjustment excessively loosens the adjusting screw, stake the adjusting screw with a punch.

Cold Weather Adjustment
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Object Number: 280046 Size: SH
  • If the horn fails to operate in cold weather, the current limit may be set too low.
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  • The horn settings are 4.5-5.5 amperes at 12 volts for each horn.

    • Important : This adjustment should not be made unless the horns fail to operate. A current increase on a properly operating horn can result in complete malfunction of the horn.

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  • In order to increase the current, rotate the adjusting screw (1) in a clockwise direction
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  • In order to decrease the current, rotate the adjusting screw (1) in a counter-clockwise direction.
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  • The current limit is 4.5-5.5 amperes at 12 volts.
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  • The adjustment should be made at 90-degree intervals.