Battery - CCS Issue

[Mocko1962]

Battery drained so low when on holiday .. less than 10V so knackered .. was a dodgy MOLL EFB. .. Have since changed new 70ahr like for like… but noticed CCS error / exclamation mark when used this week .. No Cruise Control .. The CCS was retrofit when I installed MFSW and has been fine for 3+ years. .. Will the ECU have possibly lost some coding for the CCS .. I had the wheel coded when installed .. horn and stereo still function from wheel

 

[roadtripper]

I don't think I've heard of coding being lost due to power issues - only during software updates - but I'm not the expert in that area.

If you've had a power loss or low power have you tried the trick of a full ECU reset - possibly you have issues because everything hasn't powered up in a good state.

 

[Dundee_Kev]

Have you given the van a good run? I know that other VW's don't like flat batteries and cause the adaptive cruise systems to through errors and not work. Usually once the system is happy all voltages etc are fine, then all starts working again.

Failing that, you'll need to get it code read

 

[Mocko1962]

Yes run it over to Derbyshire last weekend .. no change .. I’ll have a look at the code on VCDS