I shelled out $240 for RSW All Comms III. Plugget it in and got following codes that are shown below as screenshots.

Question I have - where can I get description of RR error codes, as well as what causes them?

Here is the list

1. BCU (Body Contol Unit) - the computer that is under passenger seat:



Now, I am going to remove the BCU and send it for repair. This repair supposed to fix all these codes that also cause other problemes, like unable to unlock rear doors and/or tailgate, stiff steering, etc.

2. Engine Control Module:


I was told that these error are caused by failed mass air flow sensor - engine is getting more fuel that it is needed and the result is also poor fuel economy. In addition to mass air flow senser I am also planning to replace power steeing and all fuids - trasfer case, transmission, front and read diff, coolant, engine oil, break fluid.


3. Instrument pack


I know nothing about these errors. What causes these?


5. Steering Interlock Module. Again, I don't know what these errors are about and what are fixes:



6. Transfer Box Module - same, looking for info about these codes



7. Parking Assist Module, not important



Thanks.

Lists of codes can be found in the workshop manual (download from wiki in red at the top of this page) .

Have you tried clearing the faults to see if they return? They may be faults stored in memory and not cleared John
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Quote:

Have you tried clearing the faults to see if they return? They may be faults stored in memory and not cleared

Can you verify which codes are actually true? For example, it's quite easy to test the car will superlock.

Your diagnostic scanner also doesn't appear to tell you if the codes are present and active or stored.

The earlier L322s are notorious for phantom codes, so I wouldn't believe what it says unless you're experiencing a problem. 2015 Range Rover Autobiography 4.4 SDV8