Based on the code, there is a high current going to the leak detection pump. In these cases, it is usually the leak detection pump itself that is bad and requires replacement.
Here is what I suggest. First, access the leak detection pump. Disconnect the one electrical connector to it and inspect the plug for damage or corrosion. Remember, this is a high current, so make sure to confirm there is nothing shorting.
If the wiring is good, the pump is likely stuck in the open or closed position causing the code.
As far as location, the leak pump is located on the left side of the vehicle next to the rear left muffler. If you look at pic 1, I circled the area that will need to be removed. The pump is above the plastic shield and that is the location it will be lowered through.
Next, the easiest way to access the connectors is by removing the lower portion of the inner fender. Remove the two or three lowest screws holding it in place, and gently bend it back to access the pump. Once you have access, remove the plastic (3) vacuum hoses and the one electrical connector.
If you look at pic 2 below, I highlighted the LDP. That view is through the inner fender.
The component is screwed into plastic, so be careful when removing it. Once it is out, you will need a 10mm Torx to remove the pump from the canister.
The installation is the reverse of removal. However, make sure the hoses are properly secured when reinstalling the unit. Also, it is a good idea to use dielectric grease at the connector to improve the connection and prevent corrosion.
I hope this helps. Let me know if you have other questions.
See pics below.
Images (Click to enlarge)
Tuesday, July 13th, 2021 AT 7:16 PM