My 1990 JD 9500 has the variable fan speed not working. I removed the motor from the gear, the gear moves freely. I tested the motor by hooking it to a 12v battery, and it spins forward and reverse by hooking it normal and also reversed polarity so I know it's ok. I removed the fan switch from the right arm console, the switch ohm checks good for fast and slow speeds so it's ok. I checked the circuit breaker in the main fuse/relay panel, the circuit breaker has power through it. I cannot identify which relays are for the variable speed fan, the circuit panel only shows circuit numbers under the relays, and the owners manual does not show what each relay is for. Any help will be appreciated, I will probably be going to the JD dealer for a wiring schematic.