test heat sensor

[olgeezer]

Hello All,<br />I have a 1988 Johnson 50 hp and would like to know how to check the temp sensor and see if the warning horn works. I have moved the rubber sleeve that covers the wire splice, attached a "jumper wire", and then tried to ground out the sensor but nothing happened (no warning horn). I was hoping that someone here could tell me what I am doing wrong, or does this mean that the sensor is bad?

 

[reeldutch]

Re: test heat sensor

turn your ignition key in running position<br />then try again.<br />If not may be the horn is broken

 

[reeldutch]

Re: test heat sensor

you have to ground out the wire not the sensor.<br />the sensor normaly grounds the horn. If the sensor works of course.<br />what you are testing is if the horn works, not if the sensor works.<br /><br />reeldutch

 

[olgeezer]

Re: test heat sensor

Thanks Reeldutch, <br />I tried it with the key on and still nothing so I guess the horn might be bad. Now all I have to do is find the horn!