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Old 09-15-2020, 08:28 AM   #3
CrankyOldMan
2ZR swap. DO IT! Ask how!
 
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Drives: 09 Meteoric Metallic HB
Join Date: Feb 2011
Location: West Michigan
Posts: 2,333
I've had issues with mine ever since I took the front end apart to swap the engine, still haven't resolved it.

The horn relay is part of the big black fuse/relay device in the engine bay fuse box. Real pain to test that one because the pins are tiny and underneath the fuse block.

The horn earth/ground is connected directly to the unibody. If there isn't adequate continuity between the horn body and the battery through all the bolted connections, it won't work.
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