jgksc400 Posted March 5, 2006 Share Posted March 5, 2006 My 93 SC400 will not start; I started it last month and ran it for about 30 min. Tried to start it two days ago and nothing happened. I bought a new battery thinking the battery was bad, Here is a list of what works 1. Headlights work, courtesy lights work, interior lights work, alarm works Here is a list of what does NOT work; 1. car will not crank 2. Shifter will not move out of PARK position 3. Remote key does not not work 4. Dash lights do not work I thought that the security system was disabled but everything I tried had no effect. Does anyone have any ideas ? I thought of towing the car to a dealer but I cannot disengage the shifter from the PARK position! I could call the dealer and ask about my options :cries: HELP Quote Link to comment Share on other sites More sharing options...
Blackstarr777 Posted March 5, 2006 Share Posted March 5, 2006 It sounds like either your ignition switch is bad or your starter is bad i had the same symptoms the other day and it ended up being my starter it cost me about $220 to do. My 93 SC400 will not start; I started it last month and ran it for about 30 min. Tried to start it two days ago and nothing happened. I bought a new battery thinking the battery was bad, Here is a list of what works 1. Headlights work, courtesy lights work, interior lights work, alarm works Here is a list of what does NOT work; 1. car will not crank 2. Shifter will not move out of PARK position 3. Remote key does not not work 4. Dash lights do not work I thought that the security system was disabled but everything I tried had no effect. Does anyone have any ideas ? I thought of towing the car to a dealer but I cannot disengage the shifter from the PARK position! I could call the dealer and ask about my options :cries: HELP Quote Link to comment Share on other sites More sharing options...
Air Force Rascal Posted March 6, 2006 Share Posted March 6, 2006 My 93 SC400 will not start; I started it last month and ran it for about 30 min. Tried to start it two days ago and nothing happened. I bought a new battery thinking the battery was bad, Here is a list of what works 1. Headlights work, courtesy lights work, interior lights work, alarm works Here is a list of what does NOT work; 1. car will not crank 2. Shifter will not move out of PARK position 3. Remote key does not not work 4. Dash lights do not work I thought that the security system was disabled but everything I tried had no effect. Does anyone have any ideas ? I thought of towing the car to a dealer but I cannot disengage the shifter from the PARK position! I could call the dealer and ask about my options :cries: HELP Before you go out and buy a New starter..just test your battery once again..and make sure it reads above 12 and a half volts..if it doesn't then you may have something pulling down your battery just enough not to turn the starter.. like maybe corrosion on your starter leads or believe it or not you may have a BAD battery even though it is new..this happened to me just a couple of months ago..after I just bought a New Optima battery,,the guy was shocked that it was a BAD Optima..he never saw a bad optima before that $^&***& does happen..good luck Quote Link to comment Share on other sites More sharing options...
jgksc400 Posted March 7, 2006 Author Share Posted March 7, 2006 I forgot to mention that the dash lights and radio and temp controls do not work. The weird thing though is that the shifter is locked in PARK and the car cannot be moved. I'm just lucky that this is my Summer car and I don't need to use it. I bought the SC400 with only 37,000 miles and now it has only 41,000 miles. I replaced the P/S pump and alternator myself even though it took a lot of time. I'm not looking forward to more mechanical work and in this instance don't even know where to start. I'll probably end up calling LEXUS and bit the bullit. Will let you know what happens. JGKSC400 Quote Link to comment Share on other sites More sharing options...
jgksc400 Posted March 10, 2006 Author Share Posted March 10, 2006 I found out why SC400 did not start. Three fuses were blown; The 150 AMP ALT , 20 AMP radio and 7.5 Amp TRAC. I was not able to remove the 150A yet! but bent the two leads to establish contact, replaced the 7.5 amp fuse and wonder of wonders, turned the igniition key to ACC and on came the dash lights and I was able to move the shifter. I did not want to start the car until I correctly replace the 150 AMP fuse. I will be visiting the LEXUS or TOYOTA dealer to see if I can get a 150 AMP fuse. Now If I can only find out why fuse's blew but maybe just maybe it was just a fluke ( small chance but hoping ). JGKSC400 Quote Link to comment Share on other sites More sharing options...
jgksc400 Posted March 15, 2006 Author Share Posted March 15, 2006 :) I finally found a 150 amp fuse at the local LEXUS dealer, cost me $11.00. To get the old fuse out was a bit of a chore . Well I cranked the car and it started and I let it run untill the engine warmed up. I hope the fuses don't blow :chairshot: again but next time the first thing I'll check of course are the fuses. I'll keep my fingers crossed :whistles: . Quote Link to comment Share on other sites More sharing options...
calbsc400 Posted October 14, 2006 Share Posted October 14, 2006 Wrong again, it isn't the starter relay. When I retested it, correctly, it works fine. It appears that as soon as the starter relay closes, current flows to the PNP switch (Park/Neutral Postion) and then everything crashes at that time. Quote Link to comment Share on other sites More sharing options...
Travisbbuuu Posted March 5, 2021 Share Posted March 5, 2021 How’d you get the 150 amp alt fuse out it’s impossible Quote Link to comment Share on other sites More sharing options...
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