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Jeep Wrangler JK
JK General Discussion
Traction control light flashing or staying on
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<blockquote data-quote="WestCoastDan" data-source="post: 455787" data-attributes="member: 23120"><p>Broken record chiming in again…</p><p>The factory clamp on the negative battery terminal is a piece of shit.</p><p>It LOOKS like it is tight, but it isn’t.</p><p></p><p>Remove the nut, bend the ‘fingers’ down & back a bit, then clean the post and put it back together.</p><p>Bending the fingers back actually allows the clamp to effectively tighten onto the battery post.</p><p></p><p>The fluctuations in voltage caused by this loss of ground is enough to mess with the ecu & cause all kinds of phantom errors and codes that will make you chase your ass to fix.</p><p></p><p>I literally just had this issue on my ‘15 JKUR a week ago, and at least 3 others have also solved their issues by fixing this connector.</p><p></p><p>I plan on replacing it in the near future for one that has a better engagement with the post.</p></blockquote><p></p>
[QUOTE="WestCoastDan, post: 455787, member: 23120"] Broken record chiming in again… The factory clamp on the negative battery terminal is a piece of shit. It LOOKS like it is tight, but it isn’t. Remove the nut, bend the ‘fingers’ down & back a bit, then clean the post and put it back together. Bending the fingers back actually allows the clamp to effectively tighten onto the battery post. The fluctuations in voltage caused by this loss of ground is enough to mess with the ecu & cause all kinds of phantom errors and codes that will make you chase your ass to fix. I literally just had this issue on my ‘15 JKUR a week ago, and at least 3 others have also solved their issues by fixing this connector. I plan on replacing it in the near future for one that has a better engagement with the post. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Traction control light flashing or staying on
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