shaun786 Posted September 16, 2007 Share Posted September 16, 2007 Hi, I have a 1996 LS400 with about 152k and the outside temp reading seems to not be working. It is stuck at a tempreture of -22 degrees... What can I do to fix this? Quote Link to comment Share on other sites More sharing options...
SKperformance Posted September 16, 2007 Share Posted September 16, 2007 The sensor behind the bumper is not connected or damaged. 22 degrees is the not connected reading. Quote Link to comment Share on other sites More sharing options...
shaun786 Posted September 16, 2007 Author Share Posted September 16, 2007 I think I might have found this sensor in the pics below... Is that it? How would I go about fixing or replacing it? Quote Link to comment Share on other sites More sharing options...
shaun786 Posted September 17, 2007 Author Share Posted September 17, 2007 Does anyone know if thats the outside temperature sensor? And how I can fix it? Quote Link to comment Share on other sites More sharing options...
SKperformance Posted September 18, 2007 Share Posted September 18, 2007 Looks like it , are the wires in good shape? If not check and fix them , otherwise just buy a new sensor and mount it properly again. Quote Link to comment Share on other sites More sharing options...
shaun786 Posted September 20, 2007 Author Share Posted September 20, 2007 Well if you look at it closely you can see one of the wire is not connected... I guess that is the problem but it wont go in to its socket easily I might havent open the top part of the sensor and see if it will fit then... Thanks for the help.. Quote Link to comment Share on other sites More sharing options...
gordonw Posted September 20, 2007 Share Posted September 20, 2007 Looks like you would need to replace the terminal inside the connector socket. You can get from the Lexus dealer, probably even Toyota, and it will come with a short length of wire. You just have to remove the old terminal, insert new one and the splice the wire to main wiring. Quote Link to comment Share on other sites More sharing options...
dominica Posted November 4, 2007 Share Posted November 4, 2007 is there anyone that has an idea of where the temp sensor is on a 1996 ls 400 Quote Link to comment Share on other sites More sharing options...
dominica Posted November 4, 2007 Share Posted November 4, 2007 am having problem with my heat it comes on for 5 mins then goes offf completely Quote Link to comment Share on other sites More sharing options...
dominica Posted November 4, 2007 Share Posted November 4, 2007 i have changed the coolant , the thermostart no diference yet, need some help to get heat for the winter Quote Link to comment Share on other sites More sharing options...
wwest Posted November 4, 2007 Share Posted November 4, 2007 Well if you look at it closely you can see one of the wire is not connected... I guess that is the problem but it wont go in to its socket easily I might havent open the top part of the sensor and see if it will fit then... Thanks for the help.. Remove the sensor from its socket, solder two wires to the sensor connections and then use butt splices to connect back into the wiring harness. Insulate WELL... While you're at it you might consider relocating the sensor since in its OEM position it is often influenced by radiant heat from the condensor/radiator stack when idling or moving slowly in stop and go traffic. I moved mine into the right front just behind the bumper. Later models have added DSP, Digital Signal Processing, to "filter out" these radiant effects. Quote Link to comment Share on other sites More sharing options...
wwest Posted November 4, 2007 Share Posted November 4, 2007 i have changed the coolant , the thermostart no diference yet, need some help to get heat for the winter Have you tried the MAX HEAT, highest heat setting, position? In that mode ALL sensors are ignored, the servo motors are "blindly" driven to the maximum heat position. If that should work then there is a simple diagnostic procedure the owner can use to determine which sensor has failed, is failing. Quote Link to comment Share on other sites More sharing options...
SKperformance Posted November 5, 2007 Share Posted November 5, 2007 The temp sensor we are talking about is the one for ambient (outside) air temp not coolant temp . Quote Link to comment Share on other sites More sharing options...
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