Where exactly is the timer unit located on the 1990 Honda Accord? I have tried to follow the wires from the fan switch on the thermostat housing to the timer unit with no luck. Once I do find the timer unit, if the yellow wire is grounded with the fan switch disconnected, does this mean there is a short. On the other hand, if it is not grounded would this mean that the timer unit is bad.

As a side note, when I start the car with the condensor fuse removed, there is a buzzer that sounds near the driver fender. Could this be a possible location for the timer unit? Thanks for any advice in advance.