Circuit Description
WARNING: This page is about a different car, the 2002 Nissan Sentra, 2002 Infiniti G20, 2001 Nissan Sentra, and 2001 Infiniti G20. However, it is still accessible from the selected car via links, so may be relevant.
TCC solenoid valve is activated in 4th gear by TCM in response to signals sent from vehicle speed and throttle position sensors. Lock-up piston will then be controlled. Lock-up is prohibited when ATF temperature is too low.