C4 Grand Picasso - While Driving Cut-out - P2291

[Dormouse]

not too bad/good but lower than I recommend @ 12.2v to avoid mis reads in the system ( Bitter Experience ). Could explain a few things. Anyway, charge the battery up and start over again.

[findmak]

Thanks, will do and report back

[findmak]

Finally got round to charging my battery, and cleared the codes, they all stayed off, then while driving I had the engine fault come up with ECO flashing, then after a restart the lights went out.

Plugged in the digabox and had the codes:
B1175 15 - Status: Temporary

And the 3 old codes.
Status: Intermittent
U1133
U1134
U1400


Does this relate to faulty brake switch? or do I need to drive it more and see if the errors come back?

[Dormouse]

11.9v
If this is at the battery as is without cranking , you have issues. Anything below 12.2v can give issues with comms reading. Even low cranking voltages can give issues in readings with a "healthy" battery.

Test both static and cranking voltages after you charge the battery up. If a steady cranking voltage can't be maintained then you have Battery/ Cabling / Earthing issues. I can't say which it is but Battery is the usual one but not always.

It is worth remembering on start up that a healthy alternator will kick in quite quickly with a charging voltage around 14v 14.3v so that power supply will mask the battery condition reading.

[Dormouse]

going back to this test report with the 0183 rpm, the battery voltage is at 8.5v!!!

This on it's own gives comms reading faults and may or may not be the major issue with recurring faults. Battery supply voltage in this report is definitely low and needs to be addressed as one of the faults.