ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Interior Lighting Module > < Horn Relay|Locations|Page 10968
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3. Use a jumper wire to apply ground to terminal 86. Measure the  voltage at terminal 87. If the voltage is less than 10 volts,  replace the relay.

Otherwise, return to the pinpoint tests.

Interior Lighting Module > < Horn Relay|Locations|Page 10968