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Blower heater AC motor blower switch shorting

Discussion in '1st Gen. Tacomas (1995-2004)' started by 1997tacomav6, Jan 16, 2023.

  1. Jan 16, 2023 at 9:21 PM
    #1
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

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    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Anyone know why my blower switch is burning up?
    I replaced the fan motor and blower switch 2 years ago with OEM parts,
    I took it out today because it was sticking on high to inspect it and it has burn marks all over the plastic,
    Probably drawing too much current on high,
    Anyone know why this is happening or a fix?
    Switch is 2 years old

    20230116_170908.jpg
    20230116_170914.jpg
    20230116_170922.jpg
     
    Robnik likes this.
  2. Jan 16, 2023 at 9:30 PM
    #2
    Robnik

    Robnik Disciplined Maniac

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    Greenacres, Florida
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    Definitely needs to be replaced. Try cleaning the female connector so it doesn't arc.
    Having the blower on high offers the least resistance :)
     
    1997tacomav6[OP] likes this.
  3. Jan 16, 2023 at 9:33 PM
    #3
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
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    Messages:
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    Gender:
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    First Name:
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    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    I bought a new switch for it and will install it tomorrow,
    with the switch on high as shown it looks like that’s that section that’s getting toasted tho,
    Would it have anything to do with the fan resistor now that I think about it?
     
    Robnik[QUOTED] likes this.
  4. Jan 16, 2023 at 9:46 PM
    #4
    Robnik

    Robnik Disciplined Maniac

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    Just clean the coupler & you should be good to go.
    Mine is white as snow. Cycle it around when your'e driving around.
    Good Luck, John :)
     
    1997tacomav6[OP] likes this.
  5. Jan 16, 2023 at 10:52 PM
    #5
    O'Silver_Taco

    O'Silver_Taco Well-Known Member

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    Last edited: Jan 16, 2023
    1997tacomav6[OP] likes this.
  6. Jan 17, 2023 at 12:39 AM
    #6
    Bivouac

    Bivouac Well-Known Member

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    Northern Lehigh Valley Pa
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    Remains to be seen I bought the tires and wheels the rest came along
    Best guess the connection was just loose enough to get hot.

    Inspect the female side as well for arc marks

    Any long trips with the blower motor on high? For AC or Heat?

    As far as you know other then the switch sticking the blower motor was working correct.
     
  7. Jan 17, 2023 at 2:57 AM
    #7
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,393
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Maybe I need a new connector to the switch then but I bet that’s part of the wire harness
     
  8. Jan 17, 2023 at 3:07 AM
    #8
    Bivouac

    Bivouac Well-Known Member

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    Remains to be seen I bought the tires and wheels the rest came along
    You can buy the plastic connector and new female pin pigtails if needed .

    Part outs are also I good option in any case you will end up splicing the harness
     
  9. Jan 17, 2023 at 3:22 AM
    #9
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,393
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Where do you get a new connector from that goes into the switch?
    Don’t want used
     
  10. Jan 17, 2023 at 3:31 AM
    #10
    Bivouac

    Bivouac Well-Known Member

    Joined:
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    11,580
    Northern Lehigh Valley Pa
    Vehicle:
    2000 Tacoma 5 speed 3.4
    Remains to be seen I bought the tires and wheels the rest came along
    Your Toyota parts vendor of Choice either online or in person.

    Double Check the last 5 digits should be on the female plug #90980-10877 is from the 2003 EWD

    Then you can find the correct pigtails or make your own.
     
  11. Jan 17, 2023 at 8:14 AM
    #11
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,393
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Thanks, I talked to them this morning and that part connector is still available and can be pinned without cutting the harness after depinning it
     
  12. Jan 17, 2023 at 10:18 AM
    #12
    Bivouac

    Bivouac Well-Known Member

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    Remains to be seen I bought the tires and wheels the rest came along
    I figured your pins might have also have been damaged as well.
     
  13. Jan 21, 2023 at 2:16 PM
    #13
    Blkturbo!

    Blkturbo! Well-Known Member

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    08 Tacoma; 05 Seadoo RXP; 94 Turbo Supra
    Icon Coilovers, Downsouth UCAs, rear Icon "2.5" shocks and Toytec single AAL. Still gotta do exhaust, dark headlights and re-gear the rear diff.
    Have you replaced the resistor?? Mine is shorting out and I need to fix it....in other threads, the resistor is replaced (the root cause of the short)
     
    1997tacomav6[OP] likes this.
  14. Jan 21, 2023 at 4:59 PM
    #14
    O'Silver_Taco

    O'Silver_Taco Well-Known Member

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    I got a really dumb question but here goes......is it the connector going to switch thats the problem......or is it the connector going to the motor thats crapping everything out.......
     
    1997tacomav6[OP] likes this.
  15. Jan 21, 2023 at 7:00 PM
    #15
    Bivouac

    Bivouac Well-Known Member

    Joined:
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    11,580
    Northern Lehigh Valley Pa
    Vehicle:
    2000 Tacoma 5 speed 3.4
    Remains to be seen I bought the tires and wheels the rest came along
    OP`s issue was at the switch.
     
  16. Jan 22, 2023 at 9:18 PM
    #16
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,393
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    Yup, ordered a new one too
     
  17. Jan 22, 2023 at 9:20 PM
    #17
    1997tacomav6

    1997tacomav6 [OP] V6 5sp,RegCab,TVS1320 Supercharger,Haltech, 800k

    Joined:
    Oct 5, 2013
    Member:
    #113940
    Messages:
    10,393
    Gender:
    Male
    First Name:
    John
    Denver
    Vehicle:
    97 reg cab, v6 5sp 300hp supercharged, Methonal Injection, 800,001 plus miles, Original Owner
    V6 5sp,RegCab,TVS1320 Supercharger, 56mm pulley, methanol injected Haltech ECU, AC Tvs1320 supercharger,(MUST DO) every 125,000- 150,000 needs rebuild Projector headlights HID 5 speed manual Amsoil for all drive train Smaller 56mm custom pulley, (MUST DO) 2004 DESNO fuel injectors, zero ping ping, 2004 side door mirrors Dick Cepek Rims, Michelin tires LTX, ATM Pathfinders Dynopro ATM ( that last 100,000 miles) Now running Dynopro ATM mud and snow tires KN cold air intake Cat back dual exhaust with ss exhaust tip, Raised exhaust tail pipe to 2" below body line Optima*dry cell battery,red top Alpine sirius radio, 200 watt amp, focal is165 split door pod speakers Focal door speakers Subwoffer behind seat Viper alarm, Electric Locks Dark tinted windows, bucket seats corbeau lg1 Tacoma Rubber floor mats TRD fender extenders, Bilstien shocks, King shocks JBA UCA trailer iv hitch, electric brake control, Drilled slotted brakes, High carbon steel (MUST DO) EBS green stuff 7000 series pads(MUST DO) TRD engine oil cap TRD stick shift, Marlin crawl shift kit. Rear sliding window 2002 4Runner functional hood scoop cut into Tacoma hood, 4Runner dual overhead map light Gentex Auto dim + Compass + Temp, garage,rearview mirror Snow Methonal kit stage 2 Custom 3 core aluminum radiator Linex bed liner Haltech stand alone ECU, Intake supercharger gauge. Stainless steel brake lines, Custom leather wrapped steering wheel, Haltech stand-alone ECU,
    It’s the connector to the dash switch.
    I ordered a new switch, fan, resistor, connector, connector wires that plug into the connector,
    So should be good now
     
  18. Jan 26, 2023 at 9:02 AM
    #18
    Blkturbo!

    Blkturbo! Well-Known Member

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    08 Tacoma; 05 Seadoo RXP; 94 Turbo Supra
    Icon Coilovers, Downsouth UCAs, rear Icon "2.5" shocks and Toytec single AAL. Still gotta do exhaust, dark headlights and re-gear the rear diff.
    its the harness clip that plugs into the resistor that is burning. I think it’s because the resistor goes bad, causing a load on the wires. However, the parts guy at Toyota that I know said it’s the harness’ fault for not being tight enough….I don’t think I believe that version though because I don’t recall anything feeling loose - and if it were a “loose” issue, I don’t think it would’ve taken 13yrs to begin failing.
     
    Last edited: Jan 26, 2023
  19. Jan 26, 2023 at 9:05 AM
    #19
    Blkturbo!

    Blkturbo! Well-Known Member

    Joined:
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    364
    Gender:
    Male
    First Name:
    Sean
    Henderson, NV
    Vehicle:
    08 Tacoma; 05 Seadoo RXP; 94 Turbo Supra
    Icon Coilovers, Downsouth UCAs, rear Icon "2.5" shocks and Toytec single AAL. Still gotta do exhaust, dark headlights and re-gear the rear diff.
    the dash switch becomes faulty because the wire harness is busy burning down below. My initial hot spot was fan speed 3 (my very first symptom a year ago), before burning further and disrupting the other speeds too.
    No smell at first, just speed 3 quit. Ignore it and it gets worse/risky.
     
  20. Jan 26, 2023 at 9:11 AM
    #20
    Blkturbo!

    Blkturbo! Well-Known Member

    Joined:
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    Member:
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    Messages:
    364
    Gender:
    Male
    First Name:
    Sean
    Henderson, NV
    Vehicle:
    08 Tacoma; 05 Seadoo RXP; 94 Turbo Supra
    Icon Coilovers, Downsouth UCAs, rear Icon "2.5" shocks and Toytec single AAL. Still gotta do exhaust, dark headlights and re-gear the rear diff.
    Amazon actually sells the OEM parts too. $10-15 cheaper than the dealer but then you’d be paying shipping and waiting. Toyota knows about Tacoma resistors burning up so they have them in stock.

    https://www.amazon.com/TOYOTA-Genui...mzn1.fos.006c50ae-5d4c-4777-9bc0-4513d670b6bc
     

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