Circuit Description
WARNING: This page is about a different car, the 2002 Toyota Land Cruiser, 2002 Lexus LX 470, 2001 Toyota Land Cruiser, and 2001 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
SL solenoid is turned on and off by signals from ECM to control hydraulic pressure affecting lock-up relay valve. Lock-up relay valve controls operation of Torque Converter Clutch (TCC). If ECM detects a malfunction, fail-safe function is enabled. See Figure. DTC is set when a open or short circuit occurs. Possible causes are:
- SL solenoid open or short circuit.
- SL solenoid malfunction.
- ECM malfunction.