Mustang Electric Child/teen Wheelchair Rise And Tilt With Semi Autonomous Kit

The wheelchair works, but have a error code, blinks 2 times and is in limp mode . The manual states accessories fault. Visually I can't find any issue. The chair stayed a couple of years stored and the batterys went flat, it developed the fault then. Maybe a easy fix. Is being sold without batteries. This was a very expensive piece of kit 10k plus. Only what's in the photos. No cushion or head rest. The chair also has a anti collision system and line following capabilities. (SSS) smile smart system. It shows light on all sensors and it seems to be working but needs someone that knows to assess it properly. This is collection only. Any questions I will try my best to answer.

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