LEAR BCB Cloning TC1782 – Zoe Twingo 453EQ #202606018545636

• Coolant ingress and HW damage
• No communication
• Normal Tear&wear

• Different alert codes - HVIL Interlock
• Current error
• Overheat
• Different Inverter internal failure errors with BCB preffix

• 296H50132R HW D2.2,
• 296H50128R HW D2.1,
• 296H50047R HW D2.1,
• 296H50130R HW D2.1,
• Other 296H5

• Tricore flasher tool (tool name visible in purchased operation manual)
• Soldering iron
• OBD2 brakeout cable
• 12V lab power supply

1- We assume that you took out DRIVETRAIN from vehicle, dissaesmbled everything and you took out Valeo inverter. Remove cover bolts and bolts holding the main inverter tricore board

 Before performing any work on the Smart 453, it is mandatory to prepare a controlled and safe working environment in accordance with high-voltage safety protocols. Lvl 3 HV Access license needed.

Read error codes with diagnostic tool and confirm you have same error codes and faults.

Secure the work area – The workspace must be clean, dry, clearly marked as an HV zone, and equipped with proper safety gear (HV gloves, face shield, insulating mat).

Disconnect the 12V system 

Perform safe high-voltage system shutdown – Using approved tools and following OEM procedures, disconnect the HV connectors and wait the required cool-down period for capacitor discharge.

Verify absence of voltage (Zero Voltage Verification) – Use an appropriate HV tester to ensure that no voltage is present in the system before proceeding

 First thing is to remove 12 V battery by disconnecting (-) terminal 

Now disasemble BCB box and locate Tricore TC1782:

And according to this Miniwiggler pinout connect...