the light on the screen is comining on, but no reading.
903789
Did you turn your ignition switch (key) to the on position. This will allow the scanner to connect to the cars computer.
2245456
The light is more mood lighting than reading light. It would have to be extremely close to even attempt to read!
691803
There are two possibilities. 1) the display assembly is losing calibration and the device can be reset to calibrate it. 2) the display assembly is defective and requires replacement.
1202066
In the middle over the screen. A blue light should come on when it's working.
370922
There is no light/visual feedback from the device when buttons are pressed.
1008905
There's a light that turns off or a different color. Don't remember exactly.
1657966
No light , but it displays on the screen as a symbol as to whether its caps lock on or caps lock off.
1538096
Try holding the power button for a couple of seconds. The light cycles they 3 light settings.
1298973
It has a turn switch and if not turned up there is no light. A light occurs if switch moved up at all.
314433
The light is only visible to the eye when you are looking strait at it. Even just a little angle and your not able to see it.
1500640
There is a battery indicator on the main screen when on. The light stays on when plugged in
647500
Possibly the display is frozen. Removing and reinstalling the battery is worth a try.
1650505
I have this same problem. Do I need to replace the main circuit board or the display board. I can get all readings, just no lighted buttons such as power, generating etc.
806030
Yeah, a light comes on, indicating that the unit isn't working as intended.
1825226
There are basically three components 1) bulb 2) light sensor 3) transformer/ballast. Take a look at the bulb to see if it has any darkness on the glass --- light sensors are somewhat inexpensive and try changing it. The last piece is the transformer/ballast --- normally if the bulb does not light that is a possibility.
1288213
It does not have a light other than the tiny green one that indicates it's running.
373581
Sounds like it may be defective, mine has a faint light when it is working. Check to see if files are transferring.