Excess wear at the lockup relay control sleeve in Aisin AW and Toyota/Lexus units with casting code 9132 prevents proper TCC operation and can result in various adverse symptoms. TCC apply and release concerns often develop, coupled with overheated fluid, inadequate lubrication, bushing and solenoid failure, RPM fluctuation, and converter codes. Installing Sonnax lockup relay control valve kit 77741-02K restores critical hydraulic clearances, allowing renewed TCC and lube operation.

• Sleeve manufactured from highly wear-resistant billet aluminum
• Sleeve design incorporates grooves and cross-slots to maximize valve support while maintaining proper flow
• Hardcoat anodized valve combats premature wear