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If the fan on a 1994 Honda Civic does not come and you have checked fuse box tested with 12v what else could be wrong?

- Faulty radiator temperature sensor: This sensor sends the engine temperature to the fan control module, which tells the fan to turn on when needed. If the sensor gives incorrect readings, it may cause the fan to not come on.

- Faulty fan control module: This module controls the fan speed based on the temperature reading it gets from the radiator temperature sensor. If the fan control module is defective, it may not send the correct signal to the fan, causing it to not come on.

- Broken or disconnected wiring: Check the wiring that goes from the radiator temperature sensor, fan control module, and fan. Make sure the wires are not broken, loose, or corroded.

- Faulty fan: The fan itself may have a problem causing it not to come on. To check this, you can try connecting the fan directly to a 12-volt power source. If the fan does not come on, it is faulty and needs to be replaced.