2013 Land Rover LR2 No Start

Bernie Diagnostician Albuquerque, New Mexico Posted   Latest   Edited  
Case Study
ATS - Automotive Test Solutions
Driveability
2013 Land Rover LR2 HSE 2.0L 6-spd (AWF21)
No Crank / No Start

Here is a case study that I have just completed. This Land Rover has a no crank condition after the cylinder head was replaced, I hope this helps. 

diag​.​net/file/f5soxk1a6…

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Phil Technician
Tewksbury, Massachusetts
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Another great video showing a logical diagnostic path. Looks like this one made you work a bit to find the bad module. :-) As I was watching I got to thinking about a vehicle that may have for whatever reason more than one bad module. Perhaps a lightning strike or some other issue taking out the CAN transceiver in more than one module. Can you recall running into that ever? Just thinking about…

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Bernie Diagnostician
Albuquerque, New Mexico
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Phil I have worked on multiple vehicles that were hit by lighting. In some cases only several modules were damaged. In other cases most all the modules in the vehicle were damaged. If you go through the modules that are represented in the wiring diagram and the signal is still pulled down, first check other diagrams to see if there is a module that is not shown. Next unplug all known modules…

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Rahul Technician
Upper Hutt, New Zealand
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You’re a Legend Bernie👍

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Edwin Mobile Technician
Charleston, South Carolina
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Bernie...another great case study. When you came to the steering wheel module and you talked about the incorrect wiring colors that was a great test method. Do you think that an incorrect wiring schematic can throw the technician down the wrong path? Sometimes I check another source for accuracy if possible. Also, why did you use a 5 volt source on the ttl output? Is it that you just wanted to…

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Bernie Diagnostician
Albuquerque, New Mexico
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Edwin An incorrect wiring schematic can definitely make it much harder to diagnose the problem. The TTL is a 5 volt signal that is built into the Escope for circuit testing. Therefore by design it works very well for this task. This circuit is more about the current than the voltage. The TTL signal is a low current signal . In this case study the TTL signal is used so one can determine if the…

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Jonathan Diagnostician
Hooksett, New Hampshire
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Thanks for another great video. I'm curious, without using tts is there another way to safely send a voltage signal through a can network? Would a sensor simulator work? Is there a rule of thumb for max current to send through a can network? Thanks for your time.

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Bernie Diagnostician
Albuquerque, New Mexico
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Jonathan Yes a sensor simulator will work well.

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Nolan Technician
Nassau , Bahamas
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Thank you for your time Sir , it's very good to be able to see someone going through the steps of a diagnostic process such as this and at the end truly understanding it without having to be there with the usual hands on experience this is what is going to be truly needed with things that are going on globally right now . I commend you Mister Bernie Thompson .

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Jacob Diagnostician
Sandy, Utah
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Thanks for another great video Bernie! They are amazing and extremely helpful! Can't wait for more!

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Uzuorji Technician
Lagos, Nigeria
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Thanks for this great video. Sometime when vehicles come in for a fix, hearing it had been to another shop, make us think its a difficult one. Thanks for proving that wrong.

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