Block assembly blown again immediately after replacement

2013 TOYOTA HIGHLANDER
85,000 MILES • V6 • 4WD • AUTOMATIC
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EMAGIER
  • MEMBER
  • 1 POST
Problem started with a reverse jump. Blower motor no longer worked and could smell something burnt. I replaced the blower motor but no luck. I didn't replace the resistor since I found the block assembly was blown in the first circuit. Ordered that and replaced it, but it blew again immediately. Car works fine other than the blower motor in the front doesn't function at all. Is it resistor? Wiring potentially?
Apr 6, 2019 at 5:58 PM
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ASEMASTER6371
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 52,796 POSTS
Good evening,

You have an amplifier that controls the blower speed. There should be power to the blower with the key on. Is that fuse holding?

I attached a diagram for you to view of the circuit. Check for power to the blower motor.

Roy
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Apr 6, 2019 at 7:57 PM
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