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Jeep Wrangler JK
JK General Discussion
Troubleshoot Wheel Speed Sensors with JScan
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<blockquote data-quote="JerryD" data-source="post: 438186" data-attributes="member: 17662"><p>I see a lot of threads asking for help troubleshooting symptoms, which is good. We can all learn from each other. A recent thread had someone using a code reader that actually indicated the problem was a speed sensor and which one it was. Nice! However, at $90, it still cost more than a $25 scanner and the app at $24. Now, there is a lot to be said for having a dedicated scan tool... portability, convenience, etc. but for those that have this particular app and are wondering how exactly to use it, I took some screen shots of HOW to show the wheels speed sensors when you get the the common symptoms: ABS Light/Traction Control Light on. There may be other symptoms, too. Can't recall... Its been a while since my last speed sensor went out, but here is the quick check you can do with the jScan app.</p><p></p><p>Start the app...</p><p></p><p>[ATTACH=full]118915[/ATTACH]</p><p></p><p>Select "Modules"</p><p></p><p>[ATTACH=full]118918[/ATTACH]</p><p></p><p>Select "Anti Lock Brakes"</p><p></p><p>[ATTACH=full]118919[/ATTACH]</p><p></p><p>Then "Live Data"</p><p></p><p>[ATTACH=full]118920[/ATTACH]</p><p></p><p>Click the orange circle with "..." to search for the appropriate PIDs. Type "wheel speed" in the search bar and select the LF (left front), LR (left rear), RF (right front), & RR (right rear) Wheel Speed sensors (mph) as shown below.</p><p></p><p>[ATTACH=full]118917[/ATTACH]</p><p></p><p>And you'll get this...</p><p></p><p>[ATTACH=full]118916[/ATTACH]</p><p></p><p>If this was a live shot (sorry, not that ambitious), it would show values as your are driving. A bad sensor would be zero as the others would have a value.</p><p></p><p>I wrote this to show what can be done with apps like these. I also use AppCar FCADiag, Torque and OBDLink, the latter really just for monitoring. Anyway, whatever product you use, learn HOW to use it. And when you are successful, post up the steps so that others can learn.</p><p></p><p>Chris, if this is too long or irrelevant, it won't hurt my feelings if you delete. I just want to encourage people to learn the tools that are available.</p></blockquote><p></p>
[QUOTE="JerryD, post: 438186, member: 17662"] I see a lot of threads asking for help troubleshooting symptoms, which is good. We can all learn from each other. A recent thread had someone using a code reader that actually indicated the problem was a speed sensor and which one it was. Nice! However, at $90, it still cost more than a $25 scanner and the app at $24. Now, there is a lot to be said for having a dedicated scan tool... portability, convenience, etc. but for those that have this particular app and are wondering how exactly to use it, I took some screen shots of HOW to show the wheels speed sensors when you get the the common symptoms: ABS Light/Traction Control Light on. There may be other symptoms, too. Can't recall... Its been a while since my last speed sensor went out, but here is the quick check you can do with the jScan app. Start the app... [ATTACH type="full"]118915[/ATTACH] Select "Modules" [ATTACH type="full"]118918[/ATTACH] Select "Anti Lock Brakes" [ATTACH type="full"]118919[/ATTACH] Then "Live Data" [ATTACH type="full"]118920[/ATTACH] Click the orange circle with "..." to search for the appropriate PIDs. Type "wheel speed" in the search bar and select the LF (left front), LR (left rear), RF (right front), & RR (right rear) Wheel Speed sensors (mph) as shown below. [ATTACH type="full"]118917[/ATTACH] And you'll get this... [ATTACH type="full"]118916[/ATTACH] If this was a live shot (sorry, not that ambitious), it would show values as your are driving. A bad sensor would be zero as the others would have a value. I wrote this to show what can be done with apps like these. I also use AppCar FCADiag, Torque and OBDLink, the latter really just for monitoring. Anyway, whatever product you use, learn HOW to use it. And when you are successful, post up the steps so that others can learn. Chris, if this is too long or irrelevant, it won't hurt my feelings if you delete. I just want to encourage people to learn the tools that are available. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Troubleshoot Wheel Speed Sensors with JScan
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