# Ground wiring for PMU16

**URL:** <https://community.ecumaster.com/t/ground-wiring-for-pmu16/2971>\
**Category:** PMU\
**Created:** [December 27, 2024, 7:26am UTC](https://community.ecumaster.com/t/ground-wiring-for-pmu16/2971 "2024-12-27T07:26:48Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![leon36](https://dub1.discourse-cdn.com/flex013/user_avatar/community.ecumaster.com/leon36/32/3523_2.png) [@leon36](https://community.ecumaster.com/u/leon36)\
**Post date:** [December 27, 2024, 7:26am UTC](https://community.ecumaster.com/t/ground-wiring-for-pmu16/2971/1 "2024-12-27T07:26:49Z")

</div>

Hi, could you possibly explain to me whats happening with pin 25 Ground on a PMU16. Its labeled as device ground in the pinout and you recomend connecting sensor grounds to this as well. I assume there is no dedicated sensor ground. How much current is expected on this wire as a device ground? I assume that seeing as you have specified a 2A fuse for switched 12V, that pin 25 would be expected to be less than 2A?

---

<div class="post-metadata">

**Author:** ![yotam](https://avatars.discourse-cdn.com/v4/letter/y/c0e974/32.png) [@yotam](https://community.ecumaster.com/u/yotam)\
**Post date:** [December 29, 2024, 5:13am UTC](https://community.ecumaster.com/t/ground-wiring-for-pmu16/2971/2 "2024-12-29T05:13:17Z")

</div>

The power consumption of the device itself is very low. I don’t think.it has to be fused, just make sure it has good ground contact. Actuall power consumption? Maybe 0.5 amp…

---

<div class="post-metadata">

**Author:** ![derUltraTT](https://avatars.discourse-cdn.com/v4/letter/d/ba8739/32.png) [@derUltraTT](https://community.ecumaster.com/u/derUltraTT)\
**Post date:** [December 29, 2024, 9:15am UTC](https://community.ecumaster.com/t/ground-wiring-for-pmu16/2971/3 "2024-12-29T09:15:53Z")

</div>

U should fuse every wire cause with the fuse u don’t protect the device but the wire and ur car from burning down in case of shortcircuit.