Essentially, it won't start under it's own steam. I have to jump start it to get it going. However, the battery seems fine, and I think the alternator is probably OK (?) as the battery measures 11.5v with the engine off and 14v with the engine running idle. I took the battery out and put it on a charger to double-check but the charger said the battery was fine and charged pretty much immediately.
If the car has been off for a while there is basically no power at all when I first turn the ignition to switch the electrics on. Maybe a tiny flicker, but usually nothing. If the car has just been running a while (but then switched off) I usually get electric power to the dash and interior lights, but as soon as I try to switch on the engine the electrics immediately die and nothing happens. When the engine is running idle I notice that the dash and interior lights tend to flicker a bit.
To me it sounds like a poor battery - 11.5v is too little plus your symptoms makes me suspect this.
What's more: if I drive the vehicle, the speedometer remains at zero and the total mileage recorder doesn't count up. That doesn't sound too good. I also had the ABS dashboard light come on permanently, but that appeared to be because the ABS fuse had blown (replacing that fixed it).
Firstly the ABS system is sensitive to low voltage - so i would fix that issue first.
The speedometer also gets its speed information from the ABS computer in this one, and blown fuse in addition to zero speed means either
A - faulty computer
B - poor connection on the ABS computer (mounted on the ABS pump) - check for signs of corrosion and clean
C - faulty wiring in the ABS system
A proper diagnose would tell more about this, by reading the ABS system you can read the speed from ABS system. If that shows zero and all wheel sensors etc is okay you probably have a computer fault.
I would however try to re-program the speed index value first to see if that helps (software is software)
If speed shows fine on diagnostics i would look on connectors and wiring.
Speed signal is a square LO-HI signal and is wired like this:
ABS --> ECU --> BII unit -->(CAN Bus)--> Instrument cluster