da.murf Posted July 20 Share Posted July 20 Need help! Was at a Trackday yesterday and at end of the day when I started the car again to go home the esp and tsc lights came on and won’t go off. The ABS light isn’t on and throwing no codes with basic code reader. Tsc was enabled all day and working fine right until car was turned off, I’ve watched GoPro footage and the slip light was popping on and off coming out of bends etc. Fluids all ok Brake light switch seems ok as rear brake lights come on when pedal pressed. Any ideas? Pedal dance for ecu reset didn’t sort it and battery out overnight didn’t fix it either. Any ideas?? Thanks Quote Link to comment Share on other sites More sharing options...
davey_83 Posted July 20 Share Posted July 20 Nice one for the track day, seems like you've done all the necessary checks. Maybe try a battery disconnect and reconnect. Quote Link to comment Share on other sites More sharing options...
Stewal Posted July 21 Share Posted July 21 After a track blast things like the yaw sensor will have been thrown about a bit. On some cars a spurious fault indication takes 5 or 6 cold/hot engine cycles to reset, if not, then I would get the obd read by a more sophisticated reader. Quote Link to comment Share on other sites More sharing options...
da.murf Posted July 21 Author Share Posted July 21 Ok I’ll have a look at that thanks. It’s not showing anything on basic obd code reader. Going to link it to a more sophisticated one asap. battery disconnect 12hrs didn’t do anything or the ecu pedal dance. all fuses seem ok. brakes where proper proper hot by end could brake disc/pad/rear shoe issues cause a tcs and esp light but not abs? Quote Link to comment Share on other sites More sharing options...
Jeff E Posted July 23 Share Posted July 23 Hi,every track day my ecu esp and tcs lights come on. Think gets overheated. Peddle dance or Ob gets rid of ecu and usually esp/tcs goes off after cooled down. At Cadwell my car started bogging and I struggled to get off. After cooled down it was ok. Think esp was so overheated it kept slowing the engine. Had a track day crash and afterwards,after a short distance the skid light would flicker and then both lights came full on Steering wheel not central. Had car tracked and no lights since. Perhaps your stressful use has damaged a sensor. Suspect if my esp had been working i wouldn’t have crashed. Poor excuse. Good luck Jeff 1 Quote Link to comment Share on other sites More sharing options...
da.murf Posted November 11 Author Share Posted November 11 On 23/07/2024 at 20:49, Jeff E said: Hi,every track day my ecu esp and tcs lights come on. Think gets overheated. Peddle dance or Ob gets rid of ecu and usually esp/tcs goes off after cooled down. At Cadwell my car started bogging and I struggled to get off. After cooled down it was ok. Think esp was so overheated it kept slowing the engine. Had a track day crash and afterwards,after a short distance the skid light would flicker and then both lights came full on Steering wheel not central. Had car tracked and no lights since. Perhaps your stressful use has damaged a sensor. Suspect if my esp had been working i wouldn’t have crashed. Poor excuse. Good luck Jeff thanks for the info, peddle dance hasn't shifted the esp and tcs lights and 3 months later they still come on with each drive. in terms of overheating, im guessing you mean wheel speed sensors or perhaps yaw sensors? beginning to create a list of things to swap out/replace lol Quote Link to comment Share on other sites More sharing options...
Keith D Posted November 11 Share Posted November 11 Sounds like the car thinks one wheel is continually slipping. I'd stick a multimeter on the wheel speed sensors, first check they have battery voltage, then disconnect and check resistance across them. If its not the same left to right or resistance is zero, its a fault with the wheel speed sensor / wiring. If its not at battery voltage to begin with its a fault upstream, maybe in the ABS module. Quote Link to comment Share on other sites More sharing options...
da.murf Posted November 11 Author Share Posted November 11 58 minutes ago, Keith D said: Sounds like the car thinks one wheel is continually slipping. I'd stick a multimeter on the wheel speed sensors, first check they have battery voltage, then disconnect and check resistance across them. If its not the same left to right or resistance is zero, its a fault with the wheel speed sensor / wiring. If its not at battery voltage to begin with its a fault upstream, maybe in the ABS module. thank you input and thoughts, if it was the ABS module would the ABS light also not be on? Quote Link to comment Share on other sites More sharing options...
Keith D Posted November 11 Share Posted November 11 (edited) Not necessarily, depends on the fault. If the speed sensors check out I'd probably next do a continuity check between the speed sensor plugs and the ABS module plug to rule out that part of the harness (loose plug, pins, broken wire etc). Then personally I'd move on to testing the yaw rate sensor and the steering angle sensor. JMHO others might have a different approach. Edited November 11 by Keith D Quote Link to comment Share on other sites More sharing options...
ZaneDylan Posted November 12 Share Posted November 12 On 20/07/2024 at 12:01, da.murf said: Need help! Was at a Trackday yesterday and at end of the day when I started the car again to go home the esp and tsc lights came on and won’t go off. The ABS light isn’t on and throwing no codes with basic code reader. Tsc was enabled all day and working fine right until car was turned off, I’ve watched GoPro footage and the slip light was popping on and off coming out of bends etc. Fluids all ok Brake light switch seems ok as rear brake lights come on when pedal pressed. Any ideas? Pedal dance for ecu reset didn’t sort it and battery out overnight didn’t fix it either. Any ideas?? Thanks This happened to my 350 before and I know it sounds silly but try a new set of pads - fixed it for me at least Quote Link to comment Share on other sites More sharing options...
da.murf Posted Monday at 14:29 Author Share Posted Monday at 14:29 On 12/11/2024 at 14:17, ZaneDylan said: This happened to my 350 before and I know it sounds silly but try a new set of pads - fixed it for me at least thanks will do, will have a look, I know the rear pads and handbrake shoes will need sorting. front pads look like they have some life left Quote Link to comment Share on other sites More sharing options...
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