This is mounted right next to the horn and there are 2 wires hooked to it? If so, you need a 154-010-233. Terminals 1 and 6 are used ( holding it with the contacts facing up, 1 is on the left and 6 on the right). Terminal 1 will be positive and 6 will be negitive. To test it you should get 20K-60k ohms between 1-6. Switching the test leads should get 20k-60k also.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.