gearbox return on N and FW-BRAKE message on LCD

[STAN RX7]

Hi
My name is STAN I'm new her, i'm french sorry for my english
I have RX7 FD3S with complet swap 2JZ. i have change my gearbox for 8HP70 bmw shifter 10 pins with turbolamik tcu.
I'm her for help and informations cause mecanic is good but tune the TCU is complicated for me
I'm equiped AEM V2 but communication can is realy complicated... i see for anolog with MAP sensor but it's not my real problem to day..
My first problem was target blocked on 6. i have change parametre inside the TCU for analog and erase code 33. but to day i have new problem
when i shift on drive my gearbox jerk and then goes to neutral and blocked on neutral, on my LCD i have message FW-BRAKE impossible to found the problem about this message on forum, manual, or internet...
please help me
if anyone has base map set to analog i'm happy to take it, or solution to help me
Kind regards

[M4comp]

For a standalone TCU the following signals are required and must be connected to the TCU. Use Sensor Call. -> Sensor Input: Brake Switch, Map Sensor, TPS, RPM analog inputs.

Sensor Call. -> Sensor Input -> 'Engine RPM Input' Change to '2' (RPM INPUT). Sensor Call. -> Sensor Input -> Analog engine speed will allow you to set the trigger wheel tooth count or RPM tacho pulse count to correct the RPM value.

The MAP and TPS will require their calibration to be set in the TCU under 'Sensor Cal.' All sensor inputs must be correct and match the engine sensors.

Torque Calculation -> Torque calculation input needs to be set to '0'.

Torque Calculation -> Cal:Pres/Torque must be set. This is the engine torque needed to allow the trans to shift properly. You will need to fill this table out.