Power Door Locks not working

Discussion in 'Interior' started by Kevinmac, Nov 9, 2010.

  1. Kevinmac

    Kevinmac TYF Newbie

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    Does anyone know if there is more than one fuse that goes to the Power Door Locks on a 1997 Tahoe LT. I know that the A circuit is for the power seats and for the power locks and my power seats work. It states in the owners manual that number 13 fuse is for the cigarette lighter and Door Lock Relay but my number 13 fuse has a short in it and its been like that since I've had the vehicle for six months and my power locks just stopped working last week. If there is anyone with the same vehicle would you mind pulling your number 13 fuse and still see if your power locks work. If anyone has any other ideas could you please get back to me.
     
  2. 99Yuk

    99Yuk Full Access Member

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    Your right, there are two fuses that run directly to the power door lock relays.
    I pulled this from a 1997 tahoe wiring diagram that I had found.
    [​IMG]
    I don't know the fuse number of the second fuse though, or which one it is in the fuse panel. You might have to look that part up.
     
  3. 95slowhoe

    95slowhoe Member

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    When my fuse for my cigarette lighter was blown my power door locks did not work either. I replaced the fuse and all was good.
     
  4. Kevinmac

    Kevinmac TYF Newbie

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    Fuse keeps blowing

    I put two different fuses in the Fuse 13 slot and the fuse blew both times. Just wondering what I should do, when I pulled the fuse there was a 25 fuse in there but it calls for a 20 so I tried a 20 and then a 25 and it blew both times.
     
  5. SunlitComet

    SunlitComet OBS Jedi-Do Good

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    Fuse 13 cover, If installed, Power Amp, Rear Lift gate(release switch I believe), Cig lighter, Door lock relay, and power lumbar seats. You Could unplug each component at its connector to isolate it form the bunch to dee if it still blows. But since you not would activate anything intesionally yet start with about 5-10 fuses first.

    These might help:

    http://www.sunlitcomet.com/images/automotive/162464694.gif

    http://www.sunlitcomet.com/images/automotive/62392105.gif


    Let me know if you need connector locations.
     
  6. Kevinmac

    Kevinmac TYF Newbie

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    Yes could you please let me know the connection locations.
     
  7. SunlitComet

    SunlitComet OBS Jedi-Do Good

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    Match number below with diagram. By doing C212 first you can disabble about evereything except the cigar lighter and liftgate hatch(if installed) at once from your fused supply wire.

    CONNECTORS LOCATION
    C100 LH rear of Engine Compartment at Bulkhead
    C101 LH rear of Engine Compartment near Fuse Relay Center
    C102 LH rear of Engine Compartment near Fuse Relay Center, Mounted on Fender
    C103 LH rear of Engine Compartment, under Brake Master Cylinder
    C104 LH rear of Engine Compartment, under Brake Master Cylinder
    C105 (VIN J) Rear of Intake Manifold, near Center
    C106 Top of Engine near LH Valve Cover
    C107 LH front side of Transmission
    C108 (VIN J) RH side Intake Manifold, near Throttle Body
    C110 LH rear of Engine Compartment, near C100
    C111 LH rear of Engine Compartment, below Master Cylinder
    C114 At Convenience Center
    C116 LH front of vehicle, near Core Support
    C120 Rear of Engine, near Transmission
    C200 Behind RH portion of I/P, near Heater Motor, in Foam Wrap
    C202 Under Steering Column
    C203 Behind RH portion of I/P, near Heater Motor, in Foam Wrap
    C204 Behind RH portion of I/P
    C205 At Convenience Center
    C206 Inside LH "A" Pillar, lower portion
    C207 Inside LH "A" Pillar, lower portion
    C208 Inside LH "A" Pillar, lower portion
    C209 Inside LH "A" Pillar, lower portion
    C210 At Convenience Center
    C211 Under Driver's Seat
    C212 Under Driver's Seat
    C213 Inside RH "A" Pillar, lower portion
    C214 Inside RH "A" Pillar, lower portion
    C215 Inside RH "A" Pillar, lower portion
    C218 At Convenience Center
    C219 At Convenience Center
    C220 At Convenience Center
    C221 At Convenience Center
    C222 At Convenience Center
    C224 LH rear of Engine Compartment, under Brake Master Cylinder
    C225 LH rear of Engine Compartment, under Brake Master Cylinder
    C227 Under LH side of LP, near Stoplamp Switch
    C230 Behind RH side of LP, above HVAC Evaporator Housing
    C240 In cross body harness, 100 cm into Seat Belt Switch Breakout
    C241 Seat jumper harness under LH Front Seat
    C266 LH side of Steering Column, near Bulkhead
    C298 Behind LH side of I/P, near Convenience Center
    C299 Behind RH side of I/P, above HVAC Evaporator Housing
    C300 In Overhead Console
    C301 LH front Kick Panel
    C302 LH front Kick Panel
    C304 Under Driver's Seat
    C305 In Headliner at #1 Roof Bow
    C306 Under front Seat
    C400 RH rear of vehicle, above Auxiliary Blower Motor
    C401 RH rear of vehicle, above Auxiliary Blower Motor
    C402 Top center rear of vehicle
    C403 LH "D" Pillar, top
    C404 LH "D" Pillar, top
    C405 RH "D" Pillar, top
    C406 RH "D" Pillar, top
    C407 Beneath LH rear Edge of Bed
    C408 (03, S3) Beneath center rear Edge of Bed
    C408 (06, 16) Lower center outside portion of Endgate
    C409 Beneath rear center of Bed, near Bumper
    C410 Top center rear of vehicle
    C411 LH rear of Cab
    C413 LH rear of Cab
    C414 In line to front Dome Lamp
    C415 In line to rear Dome Lamp
    C496 RH "B" Pillar
    C497 RH "B" Pillar
    C498 LH "B" Pillar
    C499 LH "B" Pillar
     
  8. Kevinmac

    Kevinmac TYF Newbie

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    I'm going to have a friend of mine look at these diagrams, not to electrically inclined. When I look at the diagram I see that the Power amplifier relay is in the Suburban only. The reason that I'm asking is that my son had a new head unit put in his truck and it seemed that the power locks stopped working after that I believe, just wondering if that could have been a problem. I also see that these diagrams are from 1996 but I imagine that they would be the same for a 1997 Tahoe. The cigarette lighter has never worked in the vehicle since he's owned it and it doesn't have the liftgate hatch. Why would I start with 5, 10 fuses after I unplug C212 because then there would be nothing active on the circuit. Also where is the convenience center located. Thanks for your help.
     
    Last edited: Nov 16, 2010
  9. 99Yuk

    99Yuk Full Access Member

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    The convienence center is located under the dash by your left foot. it looks like this.
    [​IMG]
     
  10. SunlitComet

    SunlitComet OBS Jedi-Do Good

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    I forget where exactly but there is supposed to be a power door lock reley in the dash. Perhaps it messed with the radio install?

    I recomended small fuses becuase if it shorts out as soon as you plug it in I was concerned that with high amp fuses that it may stress the wire to much and too many times with those high amps and may eventually cause a fire.

    When the problem gets fixed where it does not blow any more I would be safer to go back to the original fuse.

    Just trying to find a safe way.
     

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