rodney Posted November 19, 2005 Share Posted November 19, 2005 okay, 1994 lexus sc300 bought this car in 2002 with 112,000 miles on it...drove it for about a week and notice every time i put on brakes or use my turn signal, my lights dim and my dash goes out, also for 2 seconds or more my radio cuts out ..then all is fine unless i use my brake or turn signal again. But what puzzled me is that it does it only once in a while. WHAT IS IT........ Also, today i went to unlock my car with the key it only locks and unlock my drivers door, but everything on my passenger side door works on the side......HELP ME!!!!!!!!!!!!!! read everything please someone help me....... I am the 2nd owner bought it used from a dealer in Richmond, VA :cries: Quote Link to comment Share on other sites More sharing options...
SC300Drifter Posted November 21, 2005 Share Posted November 21, 2005 I am having this problem as well, except my dash/stereo lights dont cut out. Any time I push my brake pedal the headlights will flicker or dim momentarily. I have also noticed low voltage warning (on my passport escort radar detector) when i turn my blinker on. I have a 93 SC300 with a 5-speed. Any info would be appreciated. Could it be altenator failure? Quote Link to comment Share on other sites More sharing options...
94BLKSC400 Posted November 24, 2005 Share Posted November 24, 2005 I am having this problem as well, except my dash/stereo lights dont cut out. Any time I push my brake pedal the headlights will flicker or dim momentarily. I have also noticed low voltage warning (on my passport escort radar detector) when i turn my blinker on. I have a 93 SC300 with a 5-speed. Any info would be appreciated. Could it be altenator failure? ← I had the same issue with my 1994 SC400. It eventually got worse, when I put the stereo on, it dimmed the headlights. I first thought it was a ground issue, but not... It was the positive battery terminal contact being corroded. Clean both battery terminals and cables and it will be gone. Quote Link to comment Share on other sites More sharing options...
sjc6765 Posted November 24, 2005 Share Posted November 24, 2005 My '93 sc300 had the lights dim when the brake pedal thing going on, I also noticed that the dome light and head lights were flickering. I checked the alternator,, it was putting out 15 volts. I changed it anyway, and the problem is gone. I think that one of the diodes in the regulator was bad. I got the alternator from ebay for about $100.00 and changed it myself. Quote Link to comment Share on other sites More sharing options...
Sluggo Posted November 26, 2005 Share Posted November 26, 2005 Take a look at the hoses on your power steering pump (or is it the ABS pump?). In any case, one of those two may be dripping onto your alternator. This happened to my 92 SC400 and eventually shorted out the stator in the alternator. This problem is not uncommon in these cars. Cleaning and re-crimping the battery cables may also work if they are corroded near the battery. Quote Link to comment Share on other sites More sharing options...
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