1. Remove key from car and DO NOT put back in the ignition until you have finished this procedure
3. Remove the small black circuit board from inside the steering wheel.
4. Remove casing from circuit board.
5. Inspect circuit board and you will find that the red +ve track across the board is corroded and open circuit.
6. Solder a wire from the red lead to the horn push to second terminal from the left on the top row of pins on the right hand side of the board (see picture) The tight U turn from the pin is the best solution to stop the wire going through the other pins and still getting it in the existing casing without anything shorting out.
7. Refit the circuit board into its case.
