Has anyone encountered a B1A00 code? I am getting conflicting data on what it actually is

I am getting it on my 2010 XKR

 

The workshop manual is your friend. Actual Jag codes look like B1A00-XX. You have system voltage low (or high) (or restraint module) at ECM. Can't tell you which circuit as that's not the complete code.

 

Guy,

Thank you! advise on where to find a workshop manual?

If I recall, at one time there were several inks here but not accessible.

 

Send me a pm

 

I just purchased a new scan tool and now have different codes,

B1B74-00, U3000-87

I am picking up a new battery today and then will recheck to see what is going on

 

Guy,

I have just updated to an Autel MaxiCheck with JLR specific software. The most troubling code is U200d-14 Control module output power A. Is show as a permanent issue.
I have found a part and will install and then rerun everything.

Thoughts?

 

There is the U200D-14, Troubleshooting includes:
NOTE: This monitoring is based on detecting that the supply voltage from the ABS modulator is out of range (4.5V – 5.3 V)

 Refer to the electrical circuit diagrams and check the power and ground connections to the Anti-Lock Braking System Control Module.

Check the circuits between the steering angle sensor and the Anti-Lock Braking System Control Module, in particular check the steering angle sensor ground at the Anti-Lock Braking System Control Module connector pin.
If no wiring harness faults are found and the power and ground supplies to the vacuum boost pressure sensor, steering angle sensor and Anti-Lock Braking System Control Module are ok then suspect (1) the vacuum boost pressure sensor, (2) the steering angle sensor, (3) the Anti-Lock Braking System Control Module.

 

Guy,

And where does one find a wiring diagram?

 

https://charm.li/Jaguar/2010/

 

New site associated with charm:

https://lemon-manuals.org.ua/Jaguar/2010/

 

Thank you so much!!