Internal damage to the key fob's circuitry.
The Mitsubishi B1A10 was a single-engine, two-seat biplane fighter-bomber with a mixed construction of wood and metal. Its design featured a number of innovative elements, including a streamlined fuselage, a staggered wing configuration, and a robust undercarriage. The aircraft was powered by a Hiro Type 91 12-cylinder liquid-cooled W-12 engine, which produced 620 horsepower. This powerful engine enabled the B1A10 to achieve a maximum speed of 367 km/h (228 mph) and a range of approximately 1,200 km (750 miles). mitsubishi b1a10
: Use a diagnostic scan tool to erase the code and then cycle the ignition to "ON" to see if it returns. Internal damage to the key fob's circuitry
Understanding the Mitsubishi B1A10 Fault Code: Keyless/KOS Key 1 Low Battery including a streamlined fuselage