Jamie1st Posted April 11, 2012 Share Posted April 11, 2012 Hi guys, well as some of you might have seen, my car is up and running at 1.4bar on the old TD04.However, we couldn't activate launch control because the ECU isn't picking up that the car is at 0 mph when stationary.Now I'm lead to believe that there is a cable, running from the back of the clocks to the ECU which gives it the signal.Ever since I got the car, this hasn't been working, as the car has never been restricted to 112mph, and I know that the cowboy way of de-restricting it is by cutting this cable. However, I've had the clocks off, as-well as looking around the ECU and I can't see where anyone has cut the cable.Which pin is the VSS picked up on the ECU? And where a bouts is it behind the clocks? I was hoping I could just run a fresh cable.Extra Info: It chucks up an engine check light due to this, fault 42. Its triggered when the ECU notices that theres no change in speed, when the car is revving above 3k for more than 3 seconds.Thanks! Quote Link to post Share on other sites
Idrees Posted April 11, 2012 Share Posted April 11, 2012 If your speedo works then the cable is fine.I'll see if I can find out a Glanza ECU pin out diagram, that will show the speed wire on the ECU. These car's don't have a VSS though. Quote Link to post Share on other sites
Jamie1st Posted April 11, 2012 Author Share Posted April 11, 2012 Yeah the speedo works fine, nothing to do with the cable. There's 100% a wire going from the clocks to the ECU. And yeah there's not a vss, only a sensor for the ABS, but that's what they call it on the diagnostics for fault 42. I found which pin it was on the ECU, but not sure where it goes to on the clocks.Think I'll just have to follow it up through the loom, or trick it by sending a valtage to it off of a button, but then it wouldn't de activate when I start moving. Hmmm... Quote Link to post Share on other sites
Lukew360 Posted April 11, 2012 Share Posted April 11, 2012 http://www.toyotagtturbo.com/forums/showthread.php?20491-EP82-EP91-ECU-Pinout-DiagramIs that what your looking for mate? Quote Link to post Share on other sites
enzo_e492901 Posted April 11, 2012 Share Posted April 11, 2012 (edited) Using the cable from the gearbox the speedo in the back of the dials generates a SPD signal (aka VSS) and passes it to the ECU.Someone has kindly put together a comprehensive wiring/connector document. Wiring Document I know it's EP82 but it might help. Page 14 and 15 in the document.Gavin Edited April 11, 2012 by enzo_e492901 Quote Link to post Share on other sites
Jamie1st Posted April 12, 2012 Author Share Posted April 12, 2012 Cheers for the links both of you, I'll take a look after work. Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.