# Test 1 complete **URL:** \ **Category:** SON240sx Automotive\ **Created:** [November 5, 2003, 5:34am UTC](https://forums.speedlife.net/t/test-1-complete/80240 "2003-11-05T05:34:48Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Doba](https://avatars.discourse-cdn.com/v4/letter/d/a8b319/32.png) [@Doba](https://forums.speedlife.net/u/Doba)\ **Post date:** [November 5, 2003, 5:34am UTC](https://forums.speedlife.net/t/test-1-complete/80240/1 "2003-11-05T05:34:48Z")
And successful, last night i finished all the wiring on my SR put in the battery and turned the key 2 clicks, everything lit up from AC to HUD, everything looks great 1 question, any of these parts run off of the ECU? im still wondering if it will work. ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [November 5, 2003, 8:44am UTC](https://forums.speedlife.net/t/test-1-complete/80240/2 "2003-11-05T08:44:49Z")
Yes they all run off the ECU. ---
**Author:** ![MRWmotorsports](https://avatars.discourse-cdn.com/v4/letter/m/f14d63/32.png) [@MRWmotorsports](https://forums.speedlife.net/u/MRWmotorsports)\ **Post date:** [November 5, 2003, 12:15pm UTC](https://forums.speedlife.net/t/test-1-complete/80240/3 "2003-11-05T12:15:32Z")
> [@SHIFT\_SR20DET](#): > > Yes they all run off the ECU. As far as I know the only one that get’s a signal directly from the ECU is the check engine light. Just having all the warning lights come on and your dash light up when you turn the ignition on is no indication that your ECU is good or bad. Do yourself a favour, make sure you get oil pressure up before starting the engine. -Martin. ---
**Author:** ![SHIFT\_KA24DET](https://avatars.discourse-cdn.com/v4/letter/s/b9bd4f/32.png) [@SHIFT\_KA24DET](https://forums.speedlife.net/u/SHIFT_KA24DET)\ **Post date:** [November 5, 2003, 12:18pm UTC](https://forums.speedlife.net/t/test-1-complete/80240/4 "2003-11-05T12:18:38Z")
All the sensors like the Speed Sensor, RPM Pulse Sensor all run through your ECU then to the gauge cluster.