How to troubleshoot battery operated Toys Car?

How to troubleshoot Toys Car? Toys Car Troubleshooting Tips :

Battery_Operated_Toys_CarIn this post let us discuss about how to resolve the problem in a china made battery operated Toys car.

If your child's battery operated toys car/bike is not working, we would like to recommend to do the following steps one by one.

You need basic tools like screw driver set, basic multimeter.

  1. Check the charger.
    Connect the charger to the mains, turn on it. Using multimeter at the output pin check 9V is coming from the charger.
  2. If the charger is ok, then the problem will be inside the car. Open the plate which covers the PCB, battery etc.
  3. The common circuit flow for all battery operated vehicles are as follows:
    [1] Convert the 230V AC into 9V ( which the external Charger does)
    [2 ]Send this 9V to the controller PCB
    [3] From the controller PCB wires will go for battery, motor, any headlights (depends upon the model)
           6V, 4.5Ah battery  has been connected to the PCB.
  4. Check for any loose contacts. Ensure that the wires are properly connected to the battery. Due to rough use by kids, some times it may get loose. Fix it rigidly and once again charge for some time. Check whether the problem is resolved.
  5. Using multimeter ( Continuity mode) check the continuity of the wires connected from controller PCB to battery.
  6. Check the voltage across the battery during charging condition. The voltage should be around 7 during that time. If not, it is not getting charged.  The problem might be inside the controller PCB.
  7. Check the voltage across the battery after charging for some time.
  8. If the voltage is still less than 5.8V even after charging for  a while then the battery might have gone bad. Replace the battery. It is available in the market for around Rs.200/-
  9. In the controller PCB various functional blocks are available like
    [1] Battery charging part
    [2] Relay circuit part for giving initial high current to the motor
    [3] Programming part to store the music etc
  10. Check the continuity in the battery charging part.
  11. Sometimes if you use 9V, 1A (9V, 500mA rating charger is the right choice for 6V, 4.5Ah type Lead Acid rechargeable batteries)  rating charger some of the soldering may gone bad. Identify that and do soldering.

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Thanks for reading.... Please leave your comments below...

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10 Responses

  1. Hrishi says:

    Hi...the car s not moving front when pedal is used...reverse is working..when remote is used both is working.pls tel hw to repair

    • ADMIN says:

      Thanks for asking... it is working with remote and going no motor issue... It will be only connection issue... check the connection when the car is in the front side mode

  2. Faruque says:

    Can you please give circuit diagram of pub board with two relays 12v with r/f reciever

  3. Sally says:

    Hi, Did you ever find a solution to this? I have the same issue

  4. Richard says:

    Hi. My ride on works in normal mode but stops and starts when using the remote unless the remote is right next to the car. Anyone know what could be the problem

  5. April Bryant says:

    I purchased a Polaris S2588 from big toys green country. It worked for the first 10 minutes and the made a pop/click sound and all power stopped working. I can’t find a fuse anywhere on this thing even though it says there is one. I’ve checked all the wires but I have no clue what else to do and no one will help me till Tuesday which is AFTER Christmas so the kids will be so disappointed 😔

  6. Stephanie Spedding says:

    Hi I have the 12 v Mercedes amg and everything is working fine music light s ect but when my daughter goes t accelerate the car cuts out and re starts only bought for Christmas and used twice. Can it still be battery problem even though lights and music are working fine

  7. Pawan says:

    Hi, everything is working fine but car only moves 15-30cm. After that stops. No issue with motors. Plz reply. Only used for few days.

  8. Alan says:

    12v kids Audi TT . With the remote,
    The wheels turn to left and right but the car won’t go forward or backward by the remote, however I can I hear a click click. I have changed the batteries but still no difference.
    With pedal, can be used with out problem.

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