B1A00

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Mar 28, 2026 | 08:00 AM

slb07jagxk

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From: flint

B1A00

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

I am getting it on my 2010 XKR

Mar 28, 2026 | 10:05 AM

guy

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From: Ottawa, Ontario, Canada

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.

Last edited by guy; Mar 28, 2026 at 10:09 AM.

Mar 29, 2026 | 08:40 AM

slb07jagxk

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From: flint

B1A00

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.

Mar 30, 2026 | 02:05 PM

guy

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From: Ottawa, Ontario, Canada

Send me a pm

Yesterday | 06:47 AM

slb07jagxk

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From: flint

Update

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