brake lights and electric fan?

For brake lights, look at the switch on the brake pedal arm. Make sure the switch closes properly.

With the fan, make sure any fuses and relays are up to par. Make sure the connector is plugged into the fan itself and that it does not look burned.

FWIW, Pin 14 on the CCRM should show 12 volts when low speed is on; Pin 17 should show ground when High speed should be on.

During the self test, the puter should cycle the fans.

Good luck.

brakes lights and fan are on same circuit with same fuse under dash. fuse box cavity number 15,replace with a 10 amp. red fuse