No #1 position on A/C-Heater switch

Discussion in 'Interior/Electronics' started by one2sho, Jun 19, 2015.

  1. one2sho

    one2sho Newbie

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    1987 Toyota Xtra Cab SR5
    Hello, I was wondering if anyone knows what the name of switch that controls the blower speed is actually called? Is it the fan speed switch or heater blower speed switch?? All the other positions work (II, III & IIII, execpt the I position) & also is it hard to replace it?? Thanks in advance for any HELP...
     
  2. MrDinkleman

    MrDinkleman Enthusiast

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    Huh! The #1 position on my switch burned out (a long time ago) too. I wonder if that is a common problem with these trucks. I can't really help except to say that I did buy a used replacement panel from ebay a few years ago but haven't installed it yet. I can tell swapping the panel is going to be a royal PITA because of the cables that need to be connected to the vent dampers and the heater control valve in the engine compartment. I'll check to see if the blower speed controller is easy to replace when I get home...
     
  3. one2sho

    one2sho Newbie

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    @MrDinkleman, Thanks. I think it may be a common problem, I also have seen the cables you mentioned but I hope you don't need to replace all of that.. I'll also search the web for any info on this issue.. Thanks again..
     
  4. first80toyota

    first80toyota Addict

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    As far as I know that switch is part of the entire heater control assembly, which isn't to awful bad to replace. I had to on my 89 4runner and it took about an hour total. I still havnt found where the last cable connects, as all cables were undone before I started..
     
  5. MrDinkleman

    MrDinkleman Enthusiast

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    Thanks, but unfortunately, I do have to replace the panel. :( The temperature control slider on the panel popped apart and the fan speed controller seems loose in the panel in my truck.
     
  6. SloPoke

    SloPoke Member

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    For those with faulty blower switch positions....the likely cause is the blower motor resistor......they run about $15-20 at a Stealership.
    P/N for an 89 truck is
    81138-89103 (3 speed fan)
    or
    87138-89105 (4 speed fan)
    Hope this helps some of ya!
     
  7. one2sho

    one2sho Newbie

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    @SloPoke, I was just about to mention that.. I searched on google & I believe you are correct.. It doesn't seem to much of a hassle to replace either.. Thanks for the response, guy's..
     
  8. SloPoke

    SloPoke Member

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    They can be a PITA to get to...located inside the firewall up behind the blower motor somewhere. Some are low and some are higher up.....not sure if it's a Japan vs USA made thing that makes them in different locations or what. I just know they are not all in the same place.
     
  9. 90DailyDriven

    90DailyDriven Enthusiast

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    SloPoke is correct. Check the resistor first. Very common with tacomas as well.
     
  10. 22R88

    22R88 Veteran

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    It is the resistor. Mine was easy to change in my 88. Near blower under pass side compartment.

    22R88
     
  11. one2sho

    one2sho Newbie

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    Thanks everyone for the info.. Going to get started on that later today.. You guy's are a great help..
     
  12. one2sho

    one2sho Newbie

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    Update: it was the blower resistor.. A little tough to get to, but it is all good now.. Thanks for all the info..
     

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