2001 Toyota Sequoia horn works sometimes

Question

2001 Toyota Sequoia horn works sometimes. I changed the fuse. Is it possible that the relay is bad? How would I know?

Are the connections to the horn loose?Check the connecting wires it should be firm — DhKo, Sep 20, 2017 at 6:41
@Pᴀᴜʟsᴛᴇʀ2 thanks, might be in over my head though! — Rod, Sep 20, 2017 at 16:07

Solar Mike · Accepted Answer · 2017-09-20 06:25:20Z

1

You will have to test the system logically :

1 supply - is it intermittent

2 switch for operation

3 supply to relay

4 relay

5 supply to horn

6 horn

7 earthing of horn but you can do this first as it is a common issue.

For testing use a test lamp or multimeter : lamp probably better in this case as it gives a more "visual" response when power is there...

answered Sep 20, 2017 at 6:25

Solar Mike

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This is a great list of things to check. How would the OP go about checking any single part you've mentioned? A list of bad parts is great, but instructions would make this answer great!
– Pᴀᴜʟsᴛᴇʀ2 ♦
Sep 20, 2017 at 18:49

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