5 codes no crank no start 2011 LR4

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9ineballer

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Hello and thanks for considering my issues. 2011 LR4 109k mi. No crank. Single click when start button pressed. No CEL.
Upon scan I get 5 codes. C0031 -(left front wheel speed sensor) P0019 P0017 P0018 (crankshaft pos. bank 1,2 B +1A) and U0100 (lost communication w/ engine control mod A)

So would that point to timing chain damage or engine damage? Anything else it could be? Any tips on how to confirm my problem would be so very appreciated.
Should I take belts off and see if the engine turns manually? I had some battery issues and it sat for awhile. I put a new battery in. It said low battery rather quickly after I installed it.
The voltmeter said 12.6
Any help would be awesome. Thanks
 

ftillier

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Can you have someone check the battery voltage while you try to crank it over? The other codes might be from things getting wonky due to low voltage. Wheel speed sensor is totally unrelated to the timing chain.

I'd guess your battery is a dud, or your battery connections are loose or corroded.
 

BigBriDogGuy

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When my alternator went out, my 2011 LR4 incrementally showed increasing warning and error messages until it eventually lit up like a Christmas tree. Charged the battery and replaced the alternator and never looked back.

What I have learned from being a member of these message boards is that most electronic issues wind up being a battery or grounding issue. Occasionally, it's a sensor. Could also be a fuse, but rarely turns out to be the case.

When you start hearing hoofbeats don't immediately think zebras. Good luck. :)
 

ugmw177

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the concerning codes are p0018,19,17...indicating possible timing chain issue. do a preliminary chain test through oil fill cap to see if visibly loose then use a large socket and breaker bar to attempt to turn engine manually. If it will not move, probably chain isssue. If it turns fairly freely, you should be good to continue other troubleshooting
 

9ineballer

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On the mega-fuse, no connectivity between battery terminal connection on top and red wire coming from bottom. I used my voltmeter to test. Does it require an ohm test? I checked oil cap and chain seems tight. Thanks for the help. I am amazed how little information I found via google so I do appreciate the help!
 

greiswig

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On the mega-fuse, no connectivity between battery terminal connection on top and red wire coming from bottom. I used my voltmeter to test. Does it require an ohm test? I checked oil cap and chain seems tight. Thanks for the help. I am amazed how little information I found via google so I do appreciate the help!
Just to be clear, if you’re using a voltmeter, you should see the same voltage on each end of that fuse relative to ground. If you see 12V on the battery side and less than that on the other side, your fuse may have blown.
 

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