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.
Upon receiving throttle valve opening angle signal, ECM controls line pressure by sending a predetermined duty cycle to SLT solenoid. Throttle pressure applied to primary regulator valve, which modulates line pressure, causes SLT solenoid to precisely modulate and generate line pressure according to accelerator pedal effort, or detected engine power output. This reduces line pressure and provides smooth transmission shifting. DTC is set when open or short circuit occurs. Possible causes are:
- Open or short circuit in SLT solenoid circuit.
- SLT solenoid malfunction.
- ECM malfunction.