1. Welcome to 4Runners.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 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site
    Quick Links: Liners: Weathertech or Husky? Cheap 4runner mods, emphasis on cheap Tablets & cameras Sealing holes in roof How to prevent my 4Runner TRD Sport 2023 from stealing?! Tire Size Question

Battery light on. Flickers when accelerating. Steady when idle

Discussion in 'General 4Runner Talk' started by Mick4Yota, Mar 2, 2024.

  1. Mar 2, 2024 at 4:27 PM
    #1
    Mick4Yota

    #1
    Mick4Yota [OP] New Member

    Joined:
    Dec 25, 2020
    Member:
    #18731
    Messages:
    45
    Gender:
    Male
    First Name:
    Mike
    New York
    Vehicle:
    2006 Black Limited 4Runner V8
    Bilstein 5100's, Toyo At2 tires
    Mechanic installed new alternator and myself put in new car battery prior. Cars at 285k. alternator was coming up as worn etc plus battery during reading
    However, battery light is on now all the time. Flickers when accelerating and steady when idling. Any idea why?
     
    Mick4Yota, Mar 2, 2024
    #1
  2. Mar 2, 2024 at 5:05 PM
    #2
    backpacker

    #2
    backpacker New Member

    Joined:
    Apr 22, 2023
    Member:
    #32515
    Messages:
    2,187
    Gender:
    Male
    Vehicle:
    2023 TRD ORP
    RSG sliders, Falken Wildpeak 265/70R/17 E
    How long ago were the new alternator and the new battery installed?
     
    backpacker, Mar 2, 2024
    #2
  3. Mar 2, 2024 at 5:10 PM
    #3
    Mick4Yota

    #3
    Mick4Yota [OP] New Member

    Joined:
    Dec 25, 2020
    Member:
    #18731
    Messages:
    45
    Gender:
    Male
    First Name:
    Mike
    New York
    Vehicle:
    2006 Black Limited 4Runner V8
    Bilstein 5100's, Toyo At2 tires

    Just today as in 30 miles ago. So very recently.
     
    Mick4Yota, Mar 2, 2024
    #3
  4. Mar 2, 2024 at 5:33 PM
    #4
    backpacker

    #4
    backpacker New Member

    Joined:
    Apr 22, 2023
    Member:
    #32515
    Messages:
    2,187
    Gender:
    Male
    Vehicle:
    2023 TRD ORP
    RSG sliders, Falken Wildpeak 265/70R/17 E
    Is the alternator turning OK? Any belt slippage or sounds? Are the cable connections all solid and none reversed?
     
    backpacker, Mar 2, 2024
    #4
  5. Mar 2, 2024 at 5:52 PM
    #5
    backpacker

    #5
    backpacker New Member

    Joined:
    Apr 22, 2023
    Member:
    #32515
    Messages:
    2,187
    Gender:
    Male
    Vehicle:
    2023 TRD ORP
    RSG sliders, Falken Wildpeak 265/70R/17 E
    My guess is that if everything is hooked up right and there's no slipping, there's a bad cable involved.
     
    backpacker, Mar 2, 2024
    #5
  6. Mar 2, 2024 at 5:55 PM
    #6
    steelevo

    #6
    steelevo Not so new anymore...

    Joined:
    Nov 29, 2022
    Member:
    #29845
    Messages:
    2,518
    Utah
    Vehicle:
    2023 4Runner TRD Pro Solar Octane
    When the mechanic did a load test on the system, did it show a bad alternator and/or battery?
     
    steelevo, Mar 2, 2024
    #6
Register FREE to Reply!

Products Discussed in

AWALITED 16pcs 4RUNNER Interior LED Lights Kit Super Bright LED Map Dome Light Bulbs for 2010-2019 2020 2021 2022 2023 Toyota 4Runner all models
$22.99
Battery Tender Plus 12V 1.25 AMP Car & Motorcycle Battery Charger and Maintainer, Float Charger for Automotive, and ATVs - Smarter Than a Trickle Charger
$59.95
TOOENJOY Universal Fit Car Door Step, Foldable Roof Rack Door Step Up on Door Latch, Both Feet Stand Pedal Ladder, Easy Access to Rooftop for Most Car, SUV, Truck, Max Load 400 lbs(Orange
$35.99
Red Edge Trim Medium Size, Fits Edge up to 0.15", Length 10 Feet (3.05 Meter)
$17.98
APSG Locking Oil Funnel | Compatible with Select Toyota Lexus Scion | No-Spill Tool Screws Directly INTO Filler | Fast & Easy Oil Change/Fill with No Mess !
$15.21
JDMCAR Center Console Organizer Set Compatible with 2010-2024 Toyota 4Runner Accessories Insert ABS Black Compartment Divider Armrest Tray (2-Pack)
$29.99
Govee Car LED Lights, Smart Interior Lights with App Control, RGB Inside Car Lights with DIY Mode and Music Mode, 2 Lines Design for Cars with Car Charger, DC 12V
$16.98
Rotopax Heavy-Duty Mount Backing Plate Kit for Off-Road Ladder with Hardware
$29.99
(Update) CPVAN Indoor Motion Sensor Alarm with Siren, Remote Control Wireless Infrared DIY PIR Motion Detector Burglar Alarm System, 125dB Adjustable, Battery Operated, for Home/Shed/Garage/Van etc.
$29.99
KAYCENTOP Car Steering Wheel Lock, Seat Belt Lock, Anti-Theft Device, Max 17" Length, Small and Light-Weight, Multi-Functional, Fit Most Vehicle, SUV, Golf Cart Security (Yellow)
$28.99
Viair 00032 Air Down Gauge
$22.99
Voodonala for 4Runner Side Door Storage Box Glove Organizer Tray Door Handle Storage Compartment Bin for 2010-2024 Toyota 4runner Accessories, ABS Black 4pcs(Doesn't fit limited)
$19.98
Blue Sea Systems 2300 150 Amp Common BusBar with 10 screws and a cover
$19.73
THINKWORK Lug Nut Remover, 5 Pieces Wheel Lock Removal Kit for Removing Stripped, Damaged, Frozen, Rusted, Rounded-Off Bolts, Nuts & Screws
$22.97
4 AWG Gauge Fully Assembled Battery Cables, 1-15ft Lengths, Positive or Negative Wire, Pure Copper Battery Replacement Cables, Solar Car Truck RV Camper (2ft, Single Red, 3/8” Lugs)
$14.99
DEWALT DWMT74737 Tough Box 7PC mm 1/2 Deep Drive Impact Socket Set
$29.33
Quick Release Fire Extinguisher Holder - Car Fire Extinguisher Mount Bracket Aluminum for Vehicle UTV Jeep Truck Polaris Ranger Cam-Am X3 - Quick Clamps Fire Extinguisher Mounting Bracket Heavy Duty
$24.95
Zippo 65827 Butane Lighter Insert - Double Torch, 1.4"L x 0.5"W x 2.1"Th
$17.01
AUTOMOTIVE OIL FUNNEL + Oil Filter DRAIN HOSE | Compatible with Toyota, Lexus, Scion Vehicles | No-Spill Tool Screws Directly into Filler Neck | Fast & Easy Oil Fill & Drain with No Mess
$19.22
Thule T-Track Accessory KIT
$34.95
Vailge Dog Seat Cover for Back Seat, 100% Waterproof Dog Car Seat Covers with Mesh Window, Scratch Prevent Antinslip Dog Car Hammock, Car Seat Covers for Dogs, Dog Backseat Cover,Standard
$32.54
Tevlaphee Steering Wheel Lock Anti Theft Car Device Universal Theft Prevention Car Lock Adjustable Double Hook Emergency Hammer Window Breaker Self Defense Heavy Duty Secure (Black)
$33.99
ARB ARB705 2-3/8" x 30' Recovery Strap - 17500 lbs Capacity
$70.00
Shackle Hitch Receiver 2", 41918 Lbs Break Strength Never Rust Receiver Shackle Bracket Heavy Duty and Solid with 3/4'' D Ring Shackle, Towing Accessories Compatible with Trucks Jeeps
$30.60
CLICIC 0.75 Gallon Pressure Sprayer with 7 Spray Modes, Camping Shower with Removable Hose and Shower Head for Camping Outdoor Traveling Hiking and Pet Bath
$33.99
CarQiWireless 2024 Upgrades Wireless Charger/Center Console Organizer Tray for Toyota 4runner 2010-2024 2023, Wireless Phone Charging Pad for Toyota 5th Gen SR5 TRD Truck Accessories 2021 2020
$49.98
AVAPOW Car Jump Starter Battery Jumper Starter Portable Jump Boxes Car Battery Jump Starter Battery Pack with Jumper Cable 2000A for Vehicles (12V 8L Gas/6.5L Diesel Engine), LED Light/USB QC3.0
$59.99
Fluid Film 11.75 oz. Spray 6 Pack, Spray Can Extension Wand, Number 1 in Service Wallet Size Tissue Pack
$74.98
Lift Supports Depot Qty (2) Fits Toyota 4Runner 2010-2023 Liftgate Supports Models with Added Lifting Pressure for Ladder Shocks Struts
$69.94
BIG RED T46002A Torin Steel Jack Stands: Double Locking, 6 Ton (12000 lb) Capacity, Red, 1 Pair
$56.64
Hi-Lift Sport Utility Vehicle Jack LM-100 Lift-Mate, 5000 pound capacity
$51.26
LockNLube Grease Gun Coupler locks onto Zerk fittings. Grease goes in, not on the machine. World's best-selling original locking grease coupler. Rated 10000 PSI. Long-lasting rebuildable tool.
$32.99
Bubba Rope Gator-Jaw PRO Synthetic Shackle, 7/16” – Heavy-Duty Vehicle Tow Shackle: 52300 lbs. Capacity - Yellow
$50.00
Coleman Lighted Tent Fan, Fan & Light Combo for Tents/Cars/RVs, Illuminates and Keeps You Cool, CPX 6 Compatible, 2 Light Modes & 2 Fan Speeds
$34.99
Energy Suspension - 8.9104G REAR BUMP STOPS
$37.99
Camco FasTen Camper / RV Leveling Blocks - Features Interlocking Design for Customizable Height - Carrying Handle Twists to Secure Blocks for RV Storage - 8.5” x 8.5” x 1”, Yellow, 10-Pack (21022)
$36.47
Rhino USA Recovery Gear Storage Bag - Ultimate Recovery Kit Bag for Organization in Your Vehicle - Use With Your Tow Strap, Shackles, Snatch Block or Anything You Desire - Guaranteed For Life!
$44.90
Matchbox Toyota 4RUNNER Outdoor Sportsman Series (#1 of 10) 2010 Basic Die-Cast Vehicle (#74 of 100)
$49.99
Bingfu Vehicle Ham Radio Mobile Radio Antenna VHF UHF 136-174MHz 400-470MHz Car Truck Amateur Radio Two Way Radio Antenna with Lip Mount Fixed Bracket PL259 Male 5m 16.5 feet RG58 Cable
$39.99
SmittyBilt SOFT SHACKLE ROPE - SB13051-B
$32.99
Audiovox FLCAN Multi-Platform Canbus Enabled Doorlock Interface
$69.02
Automotive Spray-On Rubberized Undercoating Material, 1-Gallon RUS-1020F6
$37.92
To Top