I would check for corrosion or looseness of the front panel plug of the radio. The whole panel plugs into the main radio board on the left side as you face the unit. Do the buttons on the radio light up? Is this only the center backlight?titoboy said:2002 model 4runner the backlight wasn't turning on? i don't know whats the problem.
solutions????any???
drmorbius said:I would check for corrosion or looseness of the front panel plug of the radio. The whole panel plugs into the main radio board on the left side as you face the unit. Do the buttons on the radio light up? Is this only the center backlight?
Is your radio a double din type with CD and cassette all in the same unit?DaveKerwin said:I am having the same problem with my OEM radio in my 01Runner.
The backlight of the screen read out is on a bit when the headlights are off, but the readout goes off when the lights are on, and it occationally flickers.
Can you define front panel plug?
drmorbius said:Is your radio a double din type with CD and cassette all in the same unit?
You have to remove the radio from the instrument panel. You will see that the front panel is held on to the radio with little clips that are part of the front panel plastic. Carefully lift the plastic off of each metal latch all the way around the front plate. This is all it takes to remove the front panel. On the rear of the front panel right side(looking at it from the back) is an 18 pin female connector which plugs in to an 18 pin male connector on the radio main board. All signals from front panel controls, lighting, power switch, etc. are routed through this connector. I would also check the radio plugs in the back of the radio for corrosion etc.DaveKerwin said:
drmorbius said:You have to remove the radio from the instrument panel. You will see that the front panel is held on to the radio with little clips that are part of the front panel plastic. Carefully lift the plastic off of each metal latch all the way around the front plate. This is all it takes to remove the front panel. On the rear of the front panel right side(looking at it from the back) is an 18 pin female connector which plugs in to an 18 pin male connector on the radio main board. All signals from front panel controls, lighting, power switch, etc. are routed through this connector. I would also check the radio plugs in the back of the radio for corrosion etc.
titoboy said:How would you remove the stock radio out from the panel i have a double din stock stereo,,do you need a special tool for removing the panel????
pnc1luv said:Ever get yours fixed titoboy? I've got the same problem with my 2000 4runner lmtd 2wd. I've literally got this deng thing taken apart and the radio apart sitting on my table. I've tried cleaning the plugs, and have re-installed 3x now. Sometimes it works, sometimes it doesn't, when plugged in, I can move the radio around or just give it a tap, and sometimes it will flicker or stay on for a short time...Otherwise, radio and everything else works fine, it's just a pain at night, when can't see the buttons or screen...let me know if you get a solution. I want to keep the stock, but if can't fix tonight, getting a different unit tomorrow!
My theory is that they are designed to stop lighting at 100k. When you take it out there is no obvious way to open it and replace bulbs. I got a used one off eBay and it worked a few months and then the lights went out. I finally got a Kenwood with the added advantage that I can play my Iphone on it. For the early months that the stereo was burned out I stashed a small LED flashlight in the cup holder. Classy.