dlash Posted March 21, 2005 Share Posted March 21, 2005 about to buy a sensor tester but not quite sure if i need....----trac----(light) comes on after driving a mile or so and stays on until car is shut off.(thats the only light that comes on) i can not get any readout codes. sometime car will go a little farther before light again but usually a mile consistently. i think a rear wheel speed sensor is the culprit but not real sure. any sensors on throttle body or engine that might affect this? '94 gs300 135k Quote Link to comment Share on other sites More sharing options...
TurboGS300 Posted March 22, 2005 Share Posted March 22, 2005 I believe the brake pedal may be your culprit, look for a sticky or broken switch. There are 2 or three switches on it. Quote Link to comment Share on other sites More sharing options...
dlash Posted March 26, 2005 Author Share Posted March 26, 2005 I believe the brake pedal may be your culprit, look for a sticky or broken switch. There are 2 or three switches on it. ← I see only one switch (brake light switch) seems to be functioning ok..today drove car in wet conditions,trac light lit , wheel started spin, trac control started working with trac light flickering then light was out the rest of the drive. however, back on the next trip....??? Quote Link to comment Share on other sites More sharing options...
TurboGS300 Posted March 26, 2005 Share Posted March 26, 2005 Could the "flickering" be blinking, as in a trouble code? Quote Link to comment Share on other sites More sharing options...
GuyTelefunken Posted March 26, 2005 Share Posted March 26, 2005 Here's how to check the codes. The "special tool" mentioned is simply a piece of wire to short the appropriate terminals. Hint: Don't short the wrong ones! :whistles: Trac_System_Code_Retrival.pdf DLC2_Pin_Locations.pdf Code_Descriptions.pdf Clearing_Codes.pdf Quote Link to comment Share on other sites More sharing options...
dlash Posted March 26, 2005 Author Share Posted March 26, 2005 Could the "flickering" be blinking, as in a trouble code? ← not trouble codes........flickering occurs when trac system is actually functioning for the condition. Quote Link to comment Share on other sites More sharing options...
dlash Posted March 26, 2005 Author Share Posted March 26, 2005 Here's how to check the codes. The "special tool" mentioned is simply a piece of wire to short the appropriate terminals. Hint: Don't short the wrong ones! :whistles: ← no trouble codes are currently existing in system.(check has been done) Quote Link to comment Share on other sites More sharing options...
TurboGS300 Posted March 26, 2005 Share Posted March 26, 2005 Ok then, it's pretty simple system, I'll post more when I get home, however, these are the 3 main steps to repairing it. B) check cut switch check for wires shorting check TRAC ECU and replace Quote Link to comment Share on other sites More sharing options...
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