fan does not run after replacing it on 2003 Toyota Echo

heater motor blower stopped running on all speeds so I replaced it with a will fit replacement. the blower ran but the air flow was too little. I cut wires to reverse;blower would not run again.

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1 answer
It may be the blower control system. Check that. You need to see if there's power and ground to the motor, if so and it doesn't run, it's failed.