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No start no crank when turning key, all normal lights on dash

Discussion in '4th Gen 4Runners (2003-2009)' started by Santidelart43, Jul 9, 2024.

  1. Jul 9, 2024 at 5:31 PM
    #1
    Santidelart43

    Santidelart43 [OP] New Member

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    2003 4runner 4x4 v6 4.0 sr5
    No start no crank when turning key, all normal lights on dash, new battery, new starter, new neutral position sensor, new ignition switch. If i send direct power to exciter on starter cranks but no start (key on acc). I dont hear click or nothing just plain no start no crank.
    I opened the ecu to see any visible damage and all i see “out of normal” is that one square (idk the name of it) a bit swollen. I dont know if its been like that forever or if its related to my issue at all. so im attaching a photo of it to not leave anything out of the drama.
    thank you everyone in advance!
    I did check all the fuses and relays related to starter/ignition
    i forgot to add, my scanner that always worked just fine on my runner, now loads up to 92% and then tells me “error communicating”, so my scanner CANT access the 4runner anymore.

    IMG_5022.jpg
     
    Last edited: Jul 10, 2024
  2. Jul 10, 2024 at 5:40 AM
    #2
    grumpy 02

    grumpy 02 New Member

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    "If i send direct power to exciter on starter cranks but no start (key on acc)." I don't think the engine will start unless the ignition is ON.
     
    Santidelart43[OP] likes this.
  3. Jul 10, 2024 at 7:39 AM
    #3
    McSpazatron

    McSpazatron New Member

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    Dobinson IMS Warn Bumper CaliRaised Sliders 285/70 K02s
    If the starter works with power directly on it, that suggests its not getting 12v from the battery. Have you checked for corrosion on the chassis ground wiring, and any fuse associated with the starter? I would also look for damaged wiring that goes to the starter.
     
  4. Jul 18, 2024 at 2:43 PM
    #4
    Santidelart43

    Santidelart43 [OP] New Member

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    2003 4runner 4x4 v6 4.0 sr5
    UPDATE: installed a new ecu and worked
     
  5. Jul 22, 2024 at 4:14 AM
    #5
    Bluesky 07

    Bluesky 07 Not a New Member

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    Russell
    Northern Georgia
    Vehicle:
    Silver ‘07 Sport V6 4WD @ 258K miles
    “Deep” Satoshi grille | X-REAS delete / TRD Offroad front springs & Bilstein 4600 shocks + FJC rear springs | Weathertech front & rear mats | Tinted front windows | Floor Armor cargo mat | TPMS bypass | LED interior, tag, & reverse lights | BlueSea Systems console USB power ports | Gentex 453 autodim mirror w/Homelink & compass | Kenwood DDX373BT HU + Audiovox backup camera | Fumoto F-103S | Bazooka tube subwoofer | Kenwood speakers & KAC-M1804 amp | Philips H9/9011 headlight bulbs | Rexing V1 Gen3 dash cam | Map light mod | Breather mod | Off-road Nav Setup | Power Stop Z36 brakes | OBD Fusion diagnostics
    Glad you got it working. If you don’t mind sharing, where did you source the ECU and at what cost?
     
  6. Jul 22, 2024 at 6:51 AM
    #6
    Santidelart43

    Santidelart43 [OP] New Member

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    This site contains affiliate links for which the site may be compensated.
    #6
  7. Jul 22, 2024 at 6:53 AM
    #7
    Bluesky 07

    Bluesky 07 Not a New Member

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    First Name:
    Russell
    Northern Georgia
    Vehicle:
    Silver ‘07 Sport V6 4WD @ 258K miles
    “Deep” Satoshi grille | X-REAS delete / TRD Offroad front springs & Bilstein 4600 shocks + FJC rear springs | Weathertech front & rear mats | Tinted front windows | Floor Armor cargo mat | TPMS bypass | LED interior, tag, & reverse lights | BlueSea Systems console USB power ports | Gentex 453 autodim mirror w/Homelink & compass | Kenwood DDX373BT HU + Audiovox backup camera | Fumoto F-103S | Bazooka tube subwoofer | Kenwood speakers & KAC-M1804 amp | Philips H9/9011 headlight bulbs | Rexing V1 Gen3 dash cam | Map light mod | Breather mod | Off-road Nav Setup | Power Stop Z36 brakes | OBD Fusion diagnostics
    Thanks. No issues here (knock on wood) but I like to have a reference just in case.
     

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