OK - the 2x4 AA model (A03CB32AA) had the indicator lights and the FC model (A03CB32FC) had the speedo - also, the 4x4 models A03CD32AB, AC & FB models used the indicator lights while the 4x4 AA model used the speedo and the 6x6 C10CL50AA used the indicator light s as well - I initially looked a wiring diagram for the FC model. Wiring harnesses were different also - 2461050 was for the FC while 2461051 was for the AA model.
The bad news is that part was only used on the 2003 models previously listed - the good news is it is still available.
Never the less, none of the models had any fuses other than the main circuit breaker. My first suspicion is a faulty ground affecting the lights and fan and if not a ground, a faulty SSCB module 4010697 (which was also used on the 250 Trail Boss and the 04 330 ATP) - on the TB, the module only controls the fan and hot lamp while the Neutral and Low indicators were controlled by the transmission switch.
The transmission switch 3233835 was used on various models 03 to 18 - on none of the models I checked was there any fuses in the wires from the transmission switch to the termination (light or display). The transmission switch is simply a switch which connects to ground. The ground turns on a light or digital indicator when the circuit is completed by closing of the switch.
Therefore, look for a bad ground to affect the indicator lights and test the control module for the fan issue if fixing the ground issue does not fix the fan also.