The U660E is the Aisin (Toyota) 6-speed automatic fitted to Toyota Camry, Highlander, Alphard, Lexus ES350, plus further applications in the same family. This page covers the switch, sensor & wiring for that platform, supplied by Guangzhou Meishun (TRANSMESUN) — a CE-certified remanufacturing factory in Huadu, Guangzhou, with 20 years in the transmission trade.
Valve-body wear and torque-converter lock-up shudder are the most commonly reported issues; solenoid performance drift appears on higher-mileage units. That failure chain is exactly what our process is built around: the part is inspected against the platform's documented wear points. Electrical function-checked per unit; connector and pin spec verified against the platform. Every order is verified against your transmission code before anything ships.
