Horn doesn't work on my 2012 when pressing the steering wheel. Debugged and quickly arrived at the culprit:
For steering wheels with audio control, the part number is 84306-0E010.
For steering wheels without audio control, the part number is 84306-04080 (costs almost $100 less).
Lucky for me I discovered this today while the 4th of July 20% of sale was still in effect (I ordered from Serra Toyota).
- Horn works when I use the buttons on the key fob, so the horns and their connections are fine.
- Horn works when the steering wheel is turned far to the left but not in any other position, so the fuse and relay are fine.
For steering wheels with audio control, the part number is 84306-0E010.
For steering wheels without audio control, the part number is 84306-04080 (costs almost $100 less).
Lucky for me I discovered this today while the 4th of July 20% of sale was still in effect (I ordered from Serra Toyota).