RDX AWD L4-2.3L Turbo (2010)
7. Using a jumper wire, connect terminal No. 1 of the dashboard wire harness 20P connector to body ground.
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If the horns sound, check these items:
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Cable reel.
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An open in the wire (cable reel subharness).
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If the horns do not sound, check these items:
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MICU
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Horns
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An open in the wire.
