Heater control output

1990 TOYOTA PICKUP
311,072 MILES • 2.4L • 4 CYL • 2WD • MANUAL
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KEITH DONALD
  • MEMBER
  • 1 POST
When I move control lever for low, medium, high air flow the high air flow is the only one that works, I have changed the blower control unit and air control switch but the low and medium control does not work.
Aug 19, 2016 at 11:15 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check to see if blower resistor is getting and sending power the resistor may be bad.
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Aug 20, 2016 at 1:10 AM
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