Location of Horn Relay in the RSX L4-20L (2005) Model - Page 154
Normally-open type A
Check for continuity between the terminals.
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There should be continuity between the No. 1 and No. 2 terminals when power and ground are connected to the No. 3 and No. 4 terminals.
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There should be no continuity between the No. 1 and No. 2 terminals when power is disconnected.
