1. Welcome to Tundras.com!

    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 Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Do I Need a Multimeter?

Discussion in '3rd Gen Tundras (2014-2021)' started by AK 6.7PSD Replacement, May 21, 2021.

  1. May 21, 2021 at 5:07 AM
    #1
    AK 6.7PSD Replacement

    AK 6.7PSD Replacement [OP] New Member

    Joined:
    Dec 22, 2017
    Member:
    #11686
    Messages:
    202
    Gender:
    Male
    IL, MO, KS, DE, IL, AK, SC...
    Vehicle:
    2018 SR5 DoubleCab 4x4
    I replaced my 41-month old OEM battery with an Interstate MTP battery and all is well with the world. Until I started to think…

    What if the OEM battery was fine and it was really a failing alternator that caused its premature demise?

    Should I blow some money on a multimeter and determine voltage/amperage output at start/run or live with blind faith that it was only the battery? I have no idea how to use a multimeter either—I didn’t pay much attention in shop class because Curt Culbertson was too busy telling stories about his dates with the shop teacher’s (Mr Buff) daughter.
     
    Sunnier and Barrett50 like this.
  2. May 21, 2021 at 5:15 AM
    #2
    Bammer

    Bammer I'm disinclined to acquiesce your request.

    Joined:
    May 23, 2019
    Member:
    #30901
    Messages:
    802
    Gender:
    Male
    First Name:
    John
    SW CT
    Vehicle:
    2019 Tundra SR5 TRD Crew Max 4x4
    To check your alternator, start the truck and test voltage at the battery, if higher than 14.2 = good, if not Alt is bad. Having a multi-meter is a good idea and can be had for cheap.
     
    NewImprovedRon, 2mchfun and nhw544 like this.
  3. May 21, 2021 at 5:29 AM
    #3
    ezdog

    ezdog New Member

    Joined:
    Mar 1, 2020
    Member:
    #43363
    Messages:
    2,086
    Gender:
    Male
    Gateway To The West
    Vehicle:
    2001 RCLB V8,4WD 2015 RCLB 5.7,4WD
    Of course you need a Meter!

    Every man that drives a truck does whether it is ever used or not and I think they are free all the time at Harbor Frieght too and likely worth twice the price at that!
     
    Bprose, snivilous, 1lowlife and 6 others like this.
  4. May 21, 2021 at 5:40 AM
    #4
    Stumpjumper

    Stumpjumper New Member

    Joined:
    Sep 15, 2016
    Member:
    #4546
    Messages:
    2,710
    Gender:
    Male
    Fate, Tx
    Vehicle:
    2017 Tundra TSS 4x4
    You should have had the battery load tested. Auto parts stores do it for free. Just because a battery shows good voltage in a resting state does not mean it will start your truck. I went round and round with a Wal Mart associate on a marine battery under warranty. They said they had to keep it overnight to test. I said bird seed get a manager over here. I was going fishing the next day and needed a battery.
     
    rockmup likes this.
  5. May 21, 2021 at 6:03 AM
    #5
    BravoDeltaRomeo

    BravoDeltaRomeo Old Man Blue

    Joined:
    Sep 3, 2019
    Member:
    #35569
    Messages:
    2,726
    Gender:
    Male
    First Name:
    Bruce
    MB Canada
    Vehicle:
    2019 Cavalry Blue Tundra CM
    This. Even if you don't know how to use it by memory, it's a good device to have.

    For battery testing, you need them load tested. This one is easier to use them a MultiMeter, but you can't use it around the house for general testing of voltage etc.

    https://www.amazon.ca/gp/product/B07KP8GCWG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
     
    Last edited: May 21, 2021
    TRDFerguson likes this.
  6. May 21, 2021 at 6:09 AM
    #6
    NoRcptn

    NoRcptn Better than mediocre poster

    Joined:
    Sep 17, 2018
    Member:
    #19520
    Messages:
    1,083
    Gender:
    Male
    NorCal
    Vehicle:
    2017 Platinum/Rock/Warrior Pro CM
    A.R.E. CX HD, Fox TRD Pro's, RW's 285/70/17
    Yep you can find them from 10.00 up to hundreds of dollars.
    I usually review some type of youtube video to reinforce my choice on the correct setting to troubleshoot what i'm looking for. Just recently used my multimeter for Tundra battery and then troubleshooting our Sprinkler controller and sprinkler solenoids.
    https://www.youtube.com/watch?v=RtNMhCzq72M
     
  7. May 21, 2021 at 6:22 AM
    #7
    Dmas

    Dmas New Member

    Joined:
    Jan 5, 2018
    Member:
    #11984
    Messages:
    253
    Gender:
    Male
    First Name:
    Dan
    FTL, FL
    Vehicle:
    2018 SR5 Tundra DC TRD Off Road 4x4
    Everybody should have a multimeter, they are cheap and very useful, just make sure you learn how to use it.
     
  8. May 21, 2021 at 6:55 AM
    #8
    2mchfun

    2mchfun Lead foot, left lane, loud stereo

    Joined:
    Dec 31, 2020
    Member:
    #56879
    Messages:
    1,609
    Gender:
    Male
    First Name:
    Dan
    Vehicle:
    2021 White 4x4 CM Trail Ed.
    Seat covers, dash mat, ext. Trans. Cooler, sumo springs, oem pwr fld tow mirrors
    YouTube is your friend, buy a good multi function meter. You can do a whole lot of troubleshooting if you need to on numerous things. Might get yourself a decent soldering iron too if the budget allows. Learn how to use them and they will pay you back five fold or more.
     
    BravoDeltaRomeo likes this.
  9. May 21, 2021 at 7:16 AM
    #9
    Sunnier

    Sunnier “DO it!”

    Joined:
    Aug 21, 2017
    Member:
    #9171
    Messages:
    9,400
    First Name:
    Sunny
    San Diego, CA
    Vehicle:
    2017 Inferno Tundra DC TRD & Longtravel 1st Gen, Banner/ HulkSmash build
    OP, you might take your truck back to the place you bought it, ask them to check the load (as they’d have done if you’d asked before purchase) then watch what they do. If you’re okay admitting you don’t know what setting and how to check, and want to learn, I’ve had pretty good results, people slowing down to show me what they’re doing to teach me.

    Then, while emboldened, head over to HF (or pay a little more, save the difference in time and gas, and show appreciation for that “free” lesson by buying one at that place you bought the battery)... and practice by repeating the load testing when you get home.... Make sure you have beer on hand. When you’ve accomplished all this, you’ll have earned a driveway celebration!

    Ok, real scoop: I have 2 or 3 multimeters and never remember how to use them.

    But soldering I learned by the monkey see, monkey do method, and I have been adequate at it since. Very cool to be able to solder while I customized lighting harnesses, installed SwitchPro and what-not. Good recommendation, this.
     
    TRDFerguson likes this.
  10. May 21, 2021 at 7:46 AM
    #10
    NewImprovedRon

    NewImprovedRon Hey! Get off my grass!

    Joined:
    Jul 8, 2015
    Member:
    #1501
    Messages:
    13,218
    Gender:
    Male
    First Name:
    Ron
    Bentonville, AR
    Vehicle:
    2015 Radiant Red TSS Doublecab 4X4 Off Road
    Deck rail system, Bed divider, door sill protectors, LED reverse light bars, Aries Bull Bar with 28" 180 watt LED light bar, LED step lights, LED bed lights, driver-side grab handle, TRD Rear Sway Bar, BedRug bed mat and tailgate mat, Morimoto Fog Lights, more to come.....
  11. May 21, 2021 at 7:49 AM
    #11
    crewmaxlmt

    crewmaxlmt New Member

    Joined:
    Nov 12, 2020
    Member:
    #54795
    Messages:
    717
    Gender:
    Male
    First Name:
    scott
    PNW
    Vehicle:
    2020 Crewmax Limited
    Anyone who plays with electricity should have a decent multimeter and know how to do the basics with it. I taught one of my sons how to use my Fluke about a year ago, 12 years old. A nice feature to look for is "record". If set to "min" "record" it will take a snapshot of the battery voltage when starting your truck.
     
  12. May 21, 2021 at 7:54 AM
    #12
    Sunnier

    Sunnier “DO it!”

    Joined:
    Aug 21, 2017
    Member:
    #9171
    Messages:
    9,400
    First Name:
    Sunny
    San Diego, CA
    Vehicle:
    2017 Inferno Tundra DC TRD & Longtravel 1st Gen, Banner/ HulkSmash build
    This is cool, Dad!

    Now, can you teach the rest of us?? :angrygirl:
     
    Barrett50 and Sumo91 like this.
  13. May 21, 2021 at 8:52 AM
    #13
    crewmaxlmt

    crewmaxlmt New Member

    Joined:
    Nov 12, 2020
    Member:
    #54795
    Messages:
    717
    Gender:
    Male
    First Name:
    scott
    PNW
    Vehicle:
    2020 Crewmax Limited
    Multimeter, megohmmeter, or oscilloscope?
     
  14. May 21, 2021 at 9:04 AM
    #14
    Black Wolf

    Black Wolf Where's my popcorn salt? Damnit

    Joined:
    Apr 20, 2014
    Member:
    #378
    Messages:
    35,349
    Gender:
    Male
    First Name:
    Matt
    Aurora CO
    Vehicle:
    2014 Blaaaaack, 5.7L DC Limited TRD 4X4
    Zone UCA's, Fat Bob's Vated, Pro Form Fab shackles, Patagonia M/T's, Ranch Hand Grill Guard, RC steps, SDHQ AIP relocation kit, RetraxONE MX, Jomax ABS armor
    and......spectrum analyzer, function generator, signal generator, audio analyzer, data logger, loop calibrator/tester, and so on......
     
  15. May 21, 2021 at 9:07 AM
    #15
    AZBoatHauler

    AZBoatHauler ASCM#3 Desert Dweller

    Joined:
    Aug 13, 2019
    Member:
    #34576
    Messages:
    1,981
    Gender:
    Male
    First Name:
    Adam
    Arizona
    Vehicle:
    2017 CM LTD TRD 4x4 MGM
    6112 and 5160 w/ CB +2, JL Audio with Kenwood HU, DD 10" Exhaust, RC light bar BD fogs, Platinum LED headlights, RCI skids, WKOR sliders otw
    In my experience, the 3rd gen Tundras do not put out this much voltage. I have an HKB voltage booster and still only see high 13’s to 14.0. It is normal for a stock Tundra to only put out around 13.5v.
     
    1lowlife and Black Wolf like this.
  16. May 21, 2021 at 9:58 AM
    #16
    jeremyd

    jeremyd 2014 Crewmax SR5

    Joined:
    May 9, 2016
    Member:
    #3336
    Messages:
    1,469
    NV
    Vehicle:
    2014 SR5 CM 4X4
    ProComp 7" 35/12.50/18 -11
    Yes, definitely a Multimeter for the tool box. It can be used for several things.. I wouldn't sweat wasting the money on a new battery. Bad OEM batteries are all over this forum..
     
    Last edited: May 21, 2021
  17. May 21, 2021 at 10:01 AM
    #17
    bwh

    bwh New Member

    Joined:
    Oct 15, 2020
    Member:
    #53599
    Messages:
    148
    Gender:
    Male
    Get a good multimeter.

    Buy once, cry once here. You don't want to be trying to trace phantom issues because your meter is cheap and junky - or have it fry itself because it can't handle the load. You can get a Fluke 115 for about $150 on Amazon right now, or if bargain hunting can probably find them on craiglists (115 or 117 would great for 95% of users - you don't need an 87 or anything). They last forever and are built to last.
     
  18. May 21, 2021 at 10:08 AM
    #18
    TundraNYJetFan

    TundraNYJetFan New Member

    Joined:
    May 12, 2021
    Member:
    #62963
    Messages:
    25
    Gender:
    Male
    First Name:
    Sully
    Vehicle:
    2010 TRD Off Road 5.7L
    Funny you brought it up. Just got mine yesterday. Klein is on sale on Amazon right now and comes with a few other pieces always helpful for auto and home.
    https://www.amazon.com/gp/product/B08W1THSM8/ref=ppx_yo_dt_b_asin_title_o01_s01?ie=UTF8
    Good tool to have regardless. I used it to test the ignition system on my riding mower. It was as suspected, the starter.

    Multi.jpg
     
  19. May 21, 2021 at 10:40 AM
    #19
    1lowlife

    1lowlife Toxic prick..

    Joined:
    May 4, 2016
    Member:
    #3296
    Messages:
    3,124
    First Name:
    Boo
    THE GREAT STATE OF TEXAS
    Vehicle:
    2014 MGM DC SR5
    My experience as well with the HKB.
    I pulled the HKB after my bad AGM experience, and buying an Interstate, but I think I'm going to put it back in.
    Around 13.5 without it, around 14.3 with it.

    @AK 6.7PSD Replacement if you got 41 months out of OEM battery you did pretty good.
    Many are lucky to get 36 months out of them.

    As others stated, you need a DDM.
    They are very handy for many different situations.
    I use mine a lot just to find continuity of grounds or circuits.

    My 40 year old Coca Cola wall clock died a few months ago.
    I finally found the clock motor and correct sized fluorescent bulbs.
    Added an on/off switch for the lights.
    Every wire in it was the same color, never could have done it without my DMM.

    f7jine3f_9fd9c6680e681db6ca806a48a06969695fbc811b.jpg
    04uis5wh_975a4c330cf7c959ef5de6448e5411c4c275f6a7.jpg
     
    Last edited: May 21, 2021
  20. May 21, 2021 at 10:58 AM
    #20
    BravoDeltaRomeo

    BravoDeltaRomeo Old Man Blue

    Joined:
    Sep 3, 2019
    Member:
    #35569
    Messages:
    2,726
    Gender:
    Male
    First Name:
    Bruce
    MB Canada
    Vehicle:
    2019 Cavalry Blue Tundra CM
    And by the looks of the Snap-On clock...you took the pic about 12 seconds after replacing the parts. :thumbsup:
     
    panicman, TRDFerguson and 1lowlife like this.
  21. May 21, 2021 at 11:11 AM
    #21
    Sunnier

    Sunnier “DO it!”

    Joined:
    Aug 21, 2017
    Member:
    #9171
    Messages:
    9,400
    First Name:
    Sunny
    San Diego, CA
    Vehicle:
    2017 Inferno Tundra DC TRD & Longtravel 1st Gen, Banner/ HulkSmash build
    He added an on/off switch for the lights, so we’ll never know....
     
    BravoDeltaRomeo likes this.
  22. May 21, 2021 at 11:12 AM
    #22
    Sunnier

    Sunnier “DO it!”

    Joined:
    Aug 21, 2017
    Member:
    #9171
    Messages:
    9,400
    First Name:
    Sunny
    San Diego, CA
    Vehicle:
    2017 Inferno Tundra DC TRD & Longtravel 1st Gen, Banner/ HulkSmash build
    Ahh, I see it now. Doh!
     
    BravoDeltaRomeo likes this.
  23. May 21, 2021 at 12:28 PM
    #23
    tttrdpro

    tttrdpro Former Naval Person

    Joined:
    Jun 1, 2019
    Member:
    #31281
    Messages:
    1,036
    Gender:
    Male
    First Name:
    Chris
    SWGA
    Vehicle:
    2021 Super White TRD Pro
    In progress…
    I agree that a multimeter is a great idea but for the love of all that is holy, please make sure you know not only how to properly use it, but that you understand how to work with electricity safely. I’ve seen people get hurt because they thought they knew what they were doing.
     
    Sunnier and ezdog like this.
  24. May 21, 2021 at 12:36 PM
    #24
    TRDFerguson

    TRDFerguson It’s funny because it’s bigger than a normal hat.

    Joined:
    Oct 18, 2018
    Member:
    #20730
    Messages:
    2,690
    Gender:
    Male
    First Name:
    Jake
    Arizona
    Vehicle:
    2018 MGM TRD Off Road
    TRD Pro suspension, Falken AT3w's, wireless CarPlay, sub/amp, front camera, remote start w/ phone app, DIY pop-n-lock, footwell lighting, USB chargers, center console wireless charger, debadged, stickers and stuff
    I always make sure I set my beer down before I work with electricity. Safety first.
     
  25. May 21, 2021 at 1:37 PM
    #25
    ezdog

    ezdog New Member

    Joined:
    Mar 1, 2020
    Member:
    #43363
    Messages:
    2,086
    Gender:
    Male
    Gateway To The West
    Vehicle:
    2001 RCLB V8,4WD 2015 RCLB 5.7,4WD
    I really only buy Fluke mainly for the quality and features but I use a meter every day too.
    Maybe my favorite feature they have is the Analog like bar graph under the Digital readout!
    I can see voltage swings and trends in a real time way that it can be tough to understand with just the digital readout.
    For some reason not many others offer this but it makes an already better Meter an order of magnitude better for my uses.

    And I can buy an older 20 or 70 series anytime for $50 if I need to which is nice and they are tough to kill too.
     
    Black Wolf, Sunnier and AZBoatHauler like this.
  26. May 24, 2021 at 6:54 AM
    #26
    Sunnier

    Sunnier “DO it!”

    Joined:
    Aug 21, 2017
    Member:
    #9171
    Messages:
    9,400
    First Name:
    Sunny
    San Diego, CA
    Vehicle:
    2017 Inferno Tundra DC TRD & Longtravel 1st Gen, Banner/ HulkSmash build
    Where might one buy one of these older versions at a good price?
     
  27. May 24, 2021 at 7:15 AM
    #27
    ColoradoTJ

    ColoradoTJ So there I was.... Staff Member

    Joined:
    Feb 24, 2016
    Member:
    #2766
    Messages:
    23,983
    Gender:
    Male
    First Name:
    Chris
    Colorado
    I have several DMM’s and they are worth every penny.
     
  28. May 24, 2021 at 7:19 AM
    #28
    ezdog

    ezdog New Member

    Joined:
    Mar 1, 2020
    Member:
    #43363
    Messages:
    2,086
    Gender:
    Male
    Gateway To The West
    Vehicle:
    2001 RCLB V8,4WD 2015 RCLB 5.7,4WD
    They are always on Craigslist and Facebook Marketplace in my area
     
    Sunnier likes this.
  29. May 24, 2021 at 7:31 AM
    #29
    parkerbows

    parkerbows New Member

    Joined:
    Apr 7, 2019
    Member:
    #28783
    Messages:
    344
    Gender:
    Male
    First Name:
    Jack
    Vehicle:
    2017 crew max sr5 trd off road
    Firestone air ride air bags
    Multimeter yes but I use my scan tool for alternator and battery testing. Mine does both
     
  30. May 24, 2021 at 8:04 AM
    #30
    blanchard7684

    blanchard7684 New Member

    Joined:
    Nov 18, 2018
    Member:
    #21856
    Messages:
    496
    Gender:
    Male
    Load tester and decent dvom with good set of leads will get you long ways to handling most battery problems in any car or truck.

    aside from charging issues you can also check battery drains and relay problems.

    very very high returns on investment here
     
To Top