1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

ABS Light On / Process to Correct

Discussion in '1st Gen. Tacomas (1995-2004)' started by jammer, Jun 16, 2020.

  1. Jun 16, 2020 at 10:00 AM
    #1
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    2003 Toyota Tacoma Pre-Runner 3.4l /Double Cab/Auto
    Just recently finished installing the add-a-leaf and polyurethane bushings in the rear leaf springs.
    Took the Yota out for a test drive yesterday and the ride was awesome. BUT, the ABS light is now on. When I got back to the house, I checked the rear just to make sure the wires were not pinched, etc., but didn't notice anything that threw up a red flag.
    I searched last night on how to pull the ABS codes, and most of what I found was for models that have the connector to check located near the manifold. That must have been on earlier models, because my '03 and friends '04 doesn't have that.
    My plan this afternoon is to remove the rear sensors, clean, and reinstall. I'll also check the wiring again.
    Question -
    Can someone please post how to check the codes on the '03? Need to determine which pins to jump under the dash.


    Appreciate any suggestions and help.

    https://www.tacomaworld.com/threads/assistance-with-add-a-leaf-install.669522/
     
    GQ7227 likes this.
  2. Jun 16, 2020 at 2:41 PM
    #2
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Inspected the wires and no issues. Plenty of slack in the wiring.
    Removed both rear sensors and cleaned off. Also used electrical cleaner to clean the connectors. Applied just a dap dielectric grease
    The rear passenger sensor had a little bit of oil residue on the tip which I cleaned off.
    ABS light is still on!
    Any suggestions?
     
    GQ7227 likes this.
  3. Jun 16, 2020 at 3:08 PM
    #3
    Ritchie

    Ritchie Well-Known Member

    Joined:
    Dec 24, 2012
    Member:
    #93649
    Messages:
    1,622
    Gender:
    Male
    San Diego (North County)
    Vehicle:
    RC Step side Pre-runner
    2.7 w/auto, 4WU 3 link, F & R Diamonds, ARB's F/R w/ Yukon 5.29's, Inchworm 4.7 Lefty, Deavers, ARB OBA, Schrockworks up front.
    Remove ABS system and pull the bulb in the dash.
    There is a write-up on TW.
    I removed mine when I did my SAC and have zero regrets.

    Good luck.
     
    ToyotaDriver likes this.
  4. Jun 16, 2020 at 4:38 PM
    #4
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Used a jumper to get the code (video results below).
    ABS light blinks in the following pattern: III pause III pause III pause IIII.
    Long pause and repeats.
    From what I can find this is the left rear sensor.
    If you think it’s something different please let me know.
    So, again, removed the tire, removed the sensor and re-installed insuring to make sure the mating surface was clean.
    Damn light is still on!



    https://youtu.be/TTWwPDtfl0M
     
    Last edited: Jun 16, 2020
    GQ7227 likes this.
  5. Jun 17, 2020 at 1:54 PM
    #5
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Bumping this back up to the top in hopes someone can help. If I can’t get it to go off I’ll be taking it to the Toyota Dealer to get them to let me know what’s wrong.
     
    GQ7227 likes this.
  6. Jun 17, 2020 at 2:51 PM
    #6
    frizzman

    frizzman Well-Known Member

    Joined:
    Sep 25, 2013
    Member:
    #113212
    Messages:
    4,468
    Gender:
    Male
    Pittsburgh, PA
    Vehicle:
    04 XCab 4x4 TRD/OR
    OME 3", Tundra 17's, Cooper S/T Maxx 255/75-17, hitch w/ 7-pin, Leer cap, JVC head unit w/BT, LED lights
  7. Jun 17, 2020 at 5:38 PM
    #7
    TacomaEli

    TacomaEli Well-Known Member

    Joined:
    Jul 5, 2019
    Member:
    #298355
    Messages:
    323
    Gender:
    Male
    First Name:
    Eli
    Roanoke, Virginia
    Vehicle:
    2000 Tacoma XtraCab SR5 TRD 3.4L Auto
    I just took the bulb out of the dash and forgot about it. If I had the money I’d probably fix it right though. Mine threw like 6 or 7 codes though so I figured it might be the abs control module itself.
     
  8. Jun 18, 2020 at 11:14 AM
    #8
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Wasn't going to post at first, but maybe this will help someone in the future.
    What I know -
    • ABS light was not on before replacing add-a-leaf / poly bushing install
    • before removing the springs, I unbolted the hard brake line, parking brake attachments, and the bolts/clips securing the abs sensor wiring. This was all done to prevent any lines becoming strained when lowering the diff.
    • Didn't mention this in the first post...When I removed each spring, I removed and inspected each sensor on the rear diff. The sensors were clean. Passenger side sensor had a small amount of oil residue on tip. I did shine a light where the sensor inserts, but there was no gear oil to see.
    What I've done to try and correct
    • Inspected the rear abs wiring. No kinks, no fraying, etc.
    • Removed each sensor, and reinserted. Used electrical spray on the connectors and applied a light coat of dielectric grease.
    • Adjusted the rear drums. Did this just to make sure something wasn't binding, etc.
    Used the jumper mod to pull the codes. I "think" it's a 34 (Rear Left Sensor) based on the ABS light blinks. **Provided a video in thread.

    Here is my dilemma. The rear LH Sensor (part #89546-35020) from ToyotaPartsDeal.com is $182. I hate to order it and it not fix the problem because I'm reading the code wrong.
    So, I wanted to take it by the Toyota Dealer to get them to read the codes and verify what I'm interrupting. I figured it would cost maybe $80 for them to check...Wrong.

    06.18

    I called the Toyota Dealership and they charge $129 to pull the code....ridiculous. BUT they wave the charge if you have them fix it.
    So, I order the sensor from ToyotaPartsDeal this morning, and order the Autel Autolink AL619 code reader (engine/srs/abs). I've wanted one and I can use this for not only my truck but other vehicles.
    The OBD2 reader should be here Monday, so I'll provide a follow up post after plugging it in.

    https://www.amazon.com/gp/product/B00652G4TS/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1





     
    Last edited: Jun 20, 2020
    GQ7227 and Black DOG Lila like this.
  9. Jun 22, 2020 at 9:53 AM
    #9
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Does anyone know if the ABS light clears itself once the issue is corrected?
    I read many post on the 2nd Gens where you have to press the gas pedal several times while the jumper wire is in place.
     
    GQ7227 likes this.
  10. Jun 22, 2020 at 7:52 PM
    #10
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    I ran a diagnostic for the engine and abs system. Came back with the two codes below which is for the left rear and right rear sensors. So, using the "Clear Antilock Brake System Codes" I cleared them just to see if they would immediately come back on and they didn't. Shut the truck off and now when you move the ignition to on, the ABS light comes on for the normal 3 seconds and goes off.
    So, I'm hoping it was just a fluke from having the rear diff moved around....fingers crossed!!

    3AD9AAC0-174E-4C10-8AF2-397A7279AE12.jpg
     
    Last edited: Jun 22, 2020
    GQ7227 and cruiserguy like this.
  11. Jun 22, 2020 at 7:56 PM
    #11
    ToyotaDriver

    ToyotaDriver Well-Known Member

    Joined:
    Nov 23, 2017
    Member:
    #236721
    Messages:
    419
    Gender:
    Male
    First Name:
    Jason
    Idaho
    Vehicle:
    ‘04 V6 5 Speed SR5 TRD downward spiraling project, ‘15 V6 6speed TRD daily
    The 1st Gen: All pro 3” lift (650 lbs coils, expedition rears with bilstiens),Timbren rear bumpstops, ubolt flip, diff drop, carrier bearing drop, 33’s on beadlocks ,ARB Bumper, winch, hand throttle, ARE canopy, roof bars, poly bushings all around minus the body mounts. The 2nd Gen: Leveling kit, roll up tonneau cover. 265/75/16’s
    The abs system is so jenky in the first gen, that you’re better off without it in my opinion. I’m really happy I disabled mine.
     
  12. Jun 25, 2020 at 11:10 AM
    #12
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Update....ABS light back on. On a positive note, it's consistent....same two error messages. I've actually cleared it 2x now. I was trying to determine if the light was coming on when braking, backing up, etc., to narrow down the issue. Basically coming on about 1 to 2 miles after being driven.
    In doing my research, I've made an observation. Not allot posts on ABS issues for the first gens. Most just either disable or put a piece of black electrical tape over the light. Hey, I get it. Sometimes the cost to repair doesn't warrant the $.
    So after reading several posts on the 2nd Gen forum, 4Runner forums, Tundra Forums, and even...dare I say it...Ford forums, most abs sensor issues are due to either a bad axle seal or bad bearing (abs ring wobbles).
    Again, the rear passenger side had some oil on the sensor. Shining a light into where it inserts, there is no visible gear oil.
    The drivers side rear sensor didn't have as much oil on the sensor. Just a dab.

    I'm really doubtful it's the sensors. I just can't see how two sensors are throwing a code, when all that was done was the springs removed and reinstalled.

    Next Plan of Action:
    Last night I ordered a pair of cheap abs sensors off of Ebay. Did this just to see if the sensors are truly the issue. I'll do this once they arrive from Cali.
    I also plan on checking the rear passenger side axle seal to see how bad of a leak there is or is it just seeping through. Regardless, I'll probably replace with an OEM seal.

    More to come!!!!!!!!!!!!

    https://www.ebay.com/ipp/264442832289?transactionId=2613474287016

    upload_2020-6-25_11-31-43.jpg

    upload_2020-6-25_11-23-37.jpg
     
    Last edited: Jun 25, 2020
    GQ7227 and cruiserguy like this.
  13. Jun 29, 2020 at 9:42 AM
    #13
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Small update.....
    The past Saturday I cleared the codes again before running an errand. ABS light came on in nearly the exact same place of the trip. But, this time there was an additional code which may support the seal being bad.
    New Code: C1238 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR RH.

    Also on Saturday I ordered the following parts from ToyotaPartsDeal.com
    2 Type S rear axle oil seals Part #90310-50006
    2 Dust O-Rings Part #90301-88077
    2 Drain Plug Gaskets (rear diff) Part #12157-10010
    1 Breather Plug Part #90930-A3001
    Additional order from Amsoil
    3 quarts of Amsoil Synthetic Severe Gear 75W-90

    upload_2020-6-29_11-33-34.jpg
     
    GQ7227 likes this.
  14. Jun 30, 2020 at 8:45 AM
    #14
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    06/30
    Okay guys. The $14 Ebay sensors arrived yesterday. Haven't installed yet. Wanted to post some pictures of them in case someone considers ordering these. Again, I know these are Chinese knock offs. It clearly states in the pics below......"Made in China". This is to rule out or confirm that it's actually a sensor. Also, the "Made in China" sensors have no markings or numbers on them. I have the new oem sensor but I'm not opening the sealed package unless I have to. Just wanted to show the visible differences between the OEM one and the cheaper alternative.

    upload_2020-6-30_10-28-48.jpg

    upload_2020-6-30_10-29-39.jpg

    upload_2020-6-30_10-39-34.jpg

    upload_2020-6-30_10-41-5.jpg

    upload_2020-6-30_10-43-39.jpg

    upload_2020-6-30_10-45-27.jpg
     
    Last edited: Jun 30, 2020
    GQ7227 likes this.
  15. Jun 30, 2020 at 3:14 PM
    #15
    Jeremy Martin

    Jeremy Martin Well-Known Member

    Joined:
    Mar 14, 2019
    Member:
    #286666
    Messages:
    93
    Vehicle:
    1st Gen Taco
    I haven't been able to solve mine either. Please keep us updated.
     
    jammer [OP] likes this.
  16. Jul 1, 2020 at 8:29 PM
    #16
    jammer

    jammer [OP] 2003 Toyota PreRunner 3.4L

    Joined:
    Jan 23, 2014
    Member:
    #121272
    Messages:
    892
    Gender:
    Male
    First Name:
    Ben
    Bentonville, AR
    Vehicle:
    2003 Lunar Mist Tacoma PreRunner 3.4l
    OME Coils/Bilstein 5100's front / 5125's rear 105 Amp Denso Alternator
    Well, I shouldn’t be surprised...the $14 Chinese sensors didn’t fit. It’s like a millimeter to big. Would have taken a hammer to drive it in.
    I did go ahead and pull the passenger side drum in preparation to replace the axle seal. Got the parking brake undone but I’ve got to go in the morning to pick up an assortment of vacuum plugs for when I remove the brake line.
    There was no gear oil inside the drums.
    Since I’m not replacing the brake shoes, I’m going to leave everything in place when removing the axle. Hardest part was removing the bottom 12mm bolt that secures the parking brake mechanism. No room with the brake shoe attached.

    E839CB21-A6C9-4146-9101-15D9B789467A.jpg
    49C0DABC-9F94-46CF-9235-DDC6B331AC0F.jpg
    9737E8C4-8B4E-4833-B223-C939AAD01EF8.jpg
    942F0E5C-9B89-47D3-9F59-99F971E086AA.jpg
    0B781906-9BC7-427E-906C-F59847285DCC.jpg
    pic of the parking brake with rubber boot being removed. I’m going to get it cleaned up while I got it off.

    11DD6D5E-A45E-4C52-926E-563C5EF0EFDF.jpg

    BCEA1974-8611-4FBF-A63E-5044CC318391.jpg
    5F484D74-C561-4A52-B0BE-C2D0E7C0B51C.jpg
    452D033A-A731-4180-B84C-CB7D7C0A5E50.jpg
    5E2C2820-3995-400C-9E42-1221988D1E49.jpg
     

    Attached Files:

    Last edited: Jul 2, 2020 at 8:24 AM
    GQ7227 and cruiserguy like this.
  17. Jul 1, 2020 at 9:04 PM
    #17
    Glamisman

    Glamisman Well-Known Member

    Joined:
    Oct 22, 2016
    Member:
    #200436
    Messages:
    2,673
    Gender:
    Male
    the error setting conditions are listed in the matrix, how you are going to test them... I dont know.
     

    Attached Files:

    jammer [OP] likes this.
  18. Jul 1, 2020 at 10:16 PM
    #18
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

    Joined:
    Dec 2, 2016
    Member:
    #203828
    Messages:
    8,964
    Gender:
    Male
    First Name:
    Jon
    Scottsdale Arizona
    Vehicle:
    04 Tacoma 4dr SR5 TRD Prerunner
    Fabtech AAL, Billie's wrapped with 880's , Tundra big brake conversion, bully bars and Pioneer DDin Stereo/dvd with exterrnal usb ports. 240K and going strong.
    Possibly a pinched wire somewhere in the harness. Have you checked the sensors with an ohm meter?
     
  19. Jul 1, 2020 at 10:23 PM
    #19
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

    Joined:
    Dec 2, 2016
    Member:
    #203828
    Messages:
    8,964
    Gender:
    Male
    First Name:
    Jon
    Scottsdale Arizona
    Vehicle:
    04 Tacoma 4dr SR5 TRD Prerunner
    Fabtech AAL, Billie's wrapped with 880's , Tundra big brake conversion, bully bars and Pioneer DDin Stereo/dvd with exterrnal usb ports. 240K and going strong.
    Check resistance of each sensor at the BN7 CONNECTION UNDER SEAT.
    SEE ATTACHED PDF WIRE FOR SCHEMATIC. sorry about caps.
     

    Attached Files:

  20. Jul 1, 2020 at 10:25 PM
    #20
    mechanicjon

    mechanicjon They call me "Jonny Stubs"

    Joined:
    Dec 2, 2016
    Member:
    #203828
    Messages:
    8,964
    Gender:
    Male
    First Name:
    Jon
    Scottsdale Arizona
    Vehicle:
    04 Tacoma 4dr SR5 TRD Prerunner
    Fabtech AAL, Billie's wrapped with 880's , Tundra big brake conversion, bully bars and Pioneer DDin Stereo/dvd with exterrnal usb ports. 240K and going strong.
    Try swapping sensors left to right and see if the code changes with it.
     

Products Discussed in

To Top