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The BMW Range
3 Series
E30
Some electrical questions for my E30
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<blockquote data-quote="evilnickwong" data-source="post: 519539" data-attributes="member: 2510"><p>Yeah it's 0 for sure when key is off. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Anyway, I poked around the car earlier. Turns out the Kenwood HU is only friction fit, so some cajoling with the flat head screwdriver popped it out. I disconnected the HU and measured current again, it was 61mA. A drop of 4mA from earlier. Next thing I tried, disconnected the ECU. A drop of a further 2mA down to 59mA total.</p><p></p><p>Finally, I disconnected my instrument cluster (removed the blue and white plugs behind the cluster. Lo and behold, the current drain dropped to 1mA.</p><p></p><p>So the question now is, why is my instrument cluster taking up so much current?!? No lights in the cluster remain on and the dials are all lifeless, so I don't know what is draining the battery.</p></blockquote><p></p>
[QUOTE="evilnickwong, post: 519539, member: 2510"] Yeah it's 0 for sure when key is off. :) Anyway, I poked around the car earlier. Turns out the Kenwood HU is only friction fit, so some cajoling with the flat head screwdriver popped it out. I disconnected the HU and measured current again, it was 61mA. A drop of 4mA from earlier. Next thing I tried, disconnected the ECU. A drop of a further 2mA down to 59mA total. Finally, I disconnected my instrument cluster (removed the blue and white plugs behind the cluster. Lo and behold, the current drain dropped to 1mA. So the question now is, why is my instrument cluster taking up so much current?!? No lights in the cluster remain on and the dials are all lifeless, so I don't know what is draining the battery. [/QUOTE]
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Some electrical questions for my E30
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