sonds like battery is bad or there is a parasidic drain on the battery like an item plugged in the cigarette lighter overnight or long periods of time with car off
a couple of things you might want to check the bulbs on your vehicle if they are all good then consider the fuses which control your lights if they are in good working order then the only other problem it could be is a bad earth
JustAnswerhttps://www.justanswer.com > Truck Repair
Jan 13, 2021 - SA 16 DTC P245700. D13 VOLVO 2016. Driver sent me the code. SA 16 DTC P040100 - Answered by a verified Technician.
1 answer · Top answer: On your question. These faults are both related to egr flow. This is usually caused by a biased ...
JustAnswerhttps://www.justanswer.com > Truck Repair
May 23, 2021 - The code is usually caused by a plugged up EGR valve cooling system, defective EGR valve, or the EGR sensor being bad. The shop needs to start ...
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volvofaultcodes.comhttps://p245700.volvofaultcodes.com
P245700 DTC Fault Code. Code Meaning. Coolant efficiency of the exhaust gas recirculation system is below the threshold value. Type Of Malfunction. No subtype ...
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Year of vehicle may help you get an answer as there were many radio changes. Mine has BlueTooth and many don't etc etc etc.
Why not pop into your Volvo Dealership for help.