Testing and Inspection of Horn Component for Escape 4WD V6-30L VIN 1
A8-A9
Normal Operation
The horn relay B+ power is supplied through circuit 1682 (RD/LB). The horn relay is controlled by the horn switch. The horn relay is grounded
through the horn switches by circuit 6 (YE/LG). When the horn switch is pressed, the horn relay control circuit 6 (YE/LG) is grounded through circuit
57 (BK). The relay is then closed causing B+ voltage to be applied to circuit 1 (DB), sounding the horns.
Possible Causes
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circuit 1 (DB) open
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circuit 6 (YE/LG) open
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circuit 57 (BK) open
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circuit 1682 (RD/LB) open
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clockspring
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horn relay
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horn
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horn switch
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SJB
Test B: The Horn Is Always On
PINPOINT TEST B: THE HORN IS ALWAYS ON
B1