System Description

WARNING: This page is about a different car, the 2004 Suzuki XL-7. However, it is still accessible from the selected car via links, so may be relevant.

TCM turns TCC solenoid OFF under any of the following conditions.

Engine coolant temperature is lower than 50 °C (122 °F).
Lock-up off signal by cruise control module is ON.
4WD LOW switch is turned ON. (4L mode)
Brake light switch is turned ON. (Brake pedal is depressed)
TCM detects the following DTCs.
P0741, P0962, P0963, P0966, P0967, P0970, P0971, P0973, P0974, P0976, P0977, P0985, P0986, P1701, P01703, P2763 and P2764