How do I know this is working? The power light comes on and a yellow light for the "car" comes on. After about two minutes, the yellow light goes
1961458
Without knowing the state of your battery it would be hard to say. Try the recondition button to see if you can get the battery to work, press the large button until recond light is lit. It takes a while to recondition the battery. Modern battery chargers will not charge bad batteries. If you started with a dead battery, then recondition may help. If the battery was okay then you have a bad unit. I would try it on a good battery before sending it back
1961459
With everything hooked up, select the type of battery (in your case car). The charger immediately starts diagnosing the battery. The yellow light will come on and sometimes 3 depending on the condition of the battery. It can take as long as 8 hours before you see any change. Check in you instruction manual but it can take as long as 20 hours to get up to the green light. I would say if it goes longer than that with no change then chances are the battery is completely dead. Best of luck.
1961460
The yellow lights should stay on an increment along the light path until full. If you are stating the light goes out and there are no lights on the unit at that time (even though still plugged in) then that sounds like an issue
1671253
could be a malfunction. I had a unit doing that and also turning the interior light on by itself. after discussion with Haier customer service I was told the unit was defective and needed repair.
1762659
If it is the same as mine, the light is only on when it is providing charge to the car. It is not on all the time.
1533120
It should power on automatically when inserted into the powerpoint or cigerette lighter of your car, there are a few things you can try.1.) Test if other things power up plugged into the outlet (eg. cellphone chargers) if they don't work eather then you may have a blown fuse, depending on your vehicle there may be a fuse for your powerpoint under your hood as well as in your dashboard.2.)the device itself has a fuse that can be accessed by unscrewing the end, if it's blow you can replace it. (but the device itself costs less than a box of replacement fuses.3.) try plugging it into another car, if it still doesn't work and the fuse is good then it's broken. It should power on automatically when inserted into the powerpoint or cigerette lighter of your car, there are a few things you can try.1.) Test if other things power up plugged into the outlet (eg. cellphone chargers) if they don't work eather then you may have a blown fuse, depending on your vehicle there may be a fuse for your powerpoint under your hood as well as in your dashboard.2.)the device itself has a fuse that can be accessed by unscrewing the end, if it's blow you can replace it. (but the device itself costs less than a box of replacement fuses.3.) try plugging... » Read More It should power on automatically when inserted into the powerpoint or cigerette lighter of your car, there are a few things you can try.1.) Test if other things power up plugged into the outlet (eg. cellphone chargers) if they don't work eather then you may have a blown fuse, depending on your vehicle there may be a fuse for your powerpoint under your hood as well as in your dashboard.2.)the device itself has a fuse that can be accessed by unscrewing the end, if it's blow you can replace it. (but the device itself costs less than a box of replacement fuses.3.) try plugging it into another car, if it still doesn't work and the fuse is good then it's broken. « Show Less
287325
Check your fuse. It came with several extras. There's a switch on it also I beleive. Both of mine worked great. Good luck
697218
if it was installed correctly, the backlit showed be on. There is a wire that is connected to the power, that should be properly inserted into the small connector on the circuit board.
1267670
I did not have that problem. It should have switched to green by now. Are you sure you are using the right power cord? Maybe it is not getting enough juice. Let me know how it works out for you. I keep mine in my car and it gets powered there as I am using it. Have never had a problem with the green light showing.
2201933
If your dashboard security light is coming on, then start with this as this is most likely the problem and you can avoid paying for a diagnosis. If the security light is not coming on, it could still be this part, however a proper diagnosis should be done to verify for sure to prevent replacing parts that are working fine. You can go to most part stores and they can test the battery and starter to make sure no problem exists in that system and that test is usually free. The only other part we sell often that is related to this is the headlight switch, even if the headlights are working ok, the security circuit uses the same circuit. If your dashboard security light is coming on, then start with this as this is most likely the problem and you can avoid paying for a diagnosis. If the security light is not coming on, it could still be this part, however a proper diagnosis should be done to verify for sure to prevent replacing parts that are working fine. You can go to most part stores and they can test the battery and starter to make sure no problem exists in that system and that test is usually free. The only other part we sell often that is related to this is the headlight switch, even if the headlights are working ok,... » Read More If your dashboard security light is coming on, then start with this as this is most likely the problem and you can avoid paying for a diagnosis. If the security light is not coming on, it could still be this part, however a proper diagnosis should be done to verify for sure to prevent replacing parts that are working fine. You can go to most part stores and they can test the battery and starter to make sure no problem exists in that system and that test is usually free. The only other part we sell often that is related to this is the headlight switch, even if the headlights are working ok, the security circuit uses the same circuit. « Show Less
237030
Kathy,Turn off the engine. Wait 15 seconds, turn the engine back on. Check to see if the Green and Red lights on the unit are on. If not push the middle button until you hear the computerized voice say "Language". If that does not do it, something has come diconnected from the power source. Check the in line fuse and then the power conncetion to the battery.
1227096
The yellow light is indicating a chargeimg state. This will be the norm of coming on and going off as a charge is required.
1876669
There will be 2 wires to connect to the battery, then the rest run to the lights. I don't recall wiring a yellow wire.. Try connecting the 2 power ones and seeing if it works, if it does just discard the yellow one
655592
Ours did that too at first, what I did was I pushed the car back and forth. It started working after like 10 mins of me pushing it. Lol hope this helps?
922885
It's supposed to light up. Check to make sure it's getting power from the cigarette lighter socket, before you decide to return it.
2027501
Return it would be my best suggestion, get your money back now while you still can. According to the user manual the closest issue that it covers to the one you are describing is: 2. What to do if it can't start up? Answer: Please check whether you have installed the OBD II connector correctly, and whether you have turned on the power supply. So try it on another OBDII car if you can and verify it is not something wrong with your vehicle, then return it when you are certain it is a piece of junk.
391064
If the power cord connections are all tight, and the outlet it's plugged into works, it should turn on. Possibly you got a defective one.
2152169
If it is charged up, then hold the on button down until it lights. If it doesn't, it is likely faulty.
925036
My advice is to turn the car on first then turn this on and make sure you turn this off before you turn the car off....