Operation CHARM: Car repair manuals for everyone.

Component Circuits Testing

SIR/CRUISE/TURN COIL ASSEMBLY
1. Check resistance through coil assembly by measuring voltage at horn switch and rotating steering wheel.
2. Check for OPENS/SHORTS.
3. Repair as needed.
4. If this component is good go to the next item indicated on the chart.

HORN SWITCHES (CONTACT PLATES)
1. Check resistance through horn switches. The switch resistance should be less than 1 ohm when the horn pad is depressed and open when the horn pad is not depressed.
2. Check for OPENS/SHORTS.
3. Repair/replace as needed.
4. If this component is good go to the next item indicated on the chart.

HORN
1. Replace as needed.
2. If this component is good go to the next item indicated on the chart.