U01B0, U1501, U1510 DTC codes, please help.

[rafaluk11]

Hi to all,

I have got Insignia 2017 1.6 D and I have 3 DTC codes: U01B0, U1501, U1510.

Can someone point me to right direction what exactly those codes means, how to properly diagnose them and resolve?

Any help would be much appreciated.

 

[rjenkinsgb]

This is for some US cars, but looks relevant - U01B0 is a battery current sensor communications fault on a Vauxhall Insignia & the others look to be indirectly related.

https://static.nhtsa.gov/odi/tsbs/2019/MC-10154631-9999.pdf

 

[rafaluk11]

Thanks for that rjenkinsgb.

It seems to be relevant, as start/stop function doesn`t work and A/C cooling doesn`t work.

Do you have any practical tips how to start dealing with this issue?

​

 

[Diver300]

The battery current sensor is often on the negative terminal, and communication to that often uses LIN.

I would start by looking for the current sensor and seeing what communication lines connect to it.

 

[rjenkinsgb]

Do you have any practical tips how to start dealing with this issue?

Work through the checks in the document?

Also, stop-start systems can be extremely sensitive to the battery condition. If it's more than three years old, or ever been fully discharged, it may need replacing even if it tests OK.

That may involve resetting the stored battery age and type using a scanner.

With vehicles that need such settings, replacing the battery without also resetting the parameters will not work - the new battery gets treated as if it's aged and lost capacity regardless!

It MUST also be the correct type, usually AGM, rather than a generic battery.