Fault phenomenon
     For a small number of Toyota VIA cars, the use of remote control can not control the door lock and unlock, that is, remote control failure.
     cause of issue
     The cause of the malfunction is that the anti-theft system (TVSS) control unit is working poorly. The anti-theft control unit on the circuit board to measure the high-frequency board and found a capacitor is working poorly, resulting in no data output, can not receive the remote control signal.
     solution
     To the system control unit suppliers in the production line on the finished product aging test, the high-frequency printed circuit board (PCB) re-wiring design. After the improvement of the part number 5K26 (part number meaning: 5 - 2005, K - November; 26-26, please refer to the anti-theft system control unit shell surface white label), vehicle VIN code LTVBA423650105217 ,Troubleshooting.