# Bad ECU or BAD TPS?

**URL:** <https://forums.speedlife.net/t/bad-ecu-or-bad-tps/155129>\
**Category:** SON240sx Automotive\
**Created:** [May 17, 2010, 6:20am UTC](https://forums.speedlife.net/t/bad-ecu-or-bad-tps/155129 "2010-05-17T06:20:07Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![prozac3ne2nr](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/prozac3ne2nr/32/5581_2.png) [@prozac3ne2nr](https://forums.speedlife.net/u/prozac3ne2nr)\
**Post date:** [May 17, 2010, 6:20am UTC](https://forums.speedlife.net/t/bad-ecu-or-bad-tps/155129/1 "2010-05-17T06:20:07Z")

</div>

The light green/red wire gives 12 volts on startup(not 5v!!)- If I understand this correctly this is power sent to the TPSensor

The Consult shows .06 volts coming from the TPsensor and stored Fault code #43 - TPS

_Is my issue with the ECU sending the incorrect voltage?_  
_What is this controlled by though?_  
Why with the TPS unplugged do I get 5 volts on the white wire?

Zac