TCC In DRIVE MODE

This OSC function is used to test whether the torque converter clutch is engaging and disengaging correctly.

The OSC functions for the TCC parameter allows the technician to choose the following:

• TCC - activates TCC OFF and ON.
• ON - turns TCC solenoid ON.
• OFF - turns TCC solenoid OFF.

OSC "TCC OFF" DRIVE MODE operates ONLY when:

• the digital TR sensor is operational and no digital TR sensor DTCs are present.
• the vehicle speed sensor is operational and no VSS sensor DTCs are present.
• the engine is ON.
• the transmission range selector lever is in O/D.
• the vehicle speed is greater than 3.2 km/h (2 mph).

OSC "TCC ON" DRIVE MODE operates ONLY when:

• the digital TR sensor is operational and no digital TR sensor DTCs are present.
• the vehicle speed sensor is operational and no VSS sensor DTCs are present.
• the engine is ON.
• the transmission range selector lever is in O/D.
• the vehicle speed is greater than 3.2 km/h (2 mph).
• the transmission is in 2nd gear or higher.
• the TFT is between 15 and 135°C (60 and 275° F).
• the brake is not applied "OFF" below 32 km/h (20 mph).
• (Not an excessive load on engine (engine lugging).

OSC Command Values

• OFF - turns TCC OFF.
• ON - turns TCC ON.
• XXX - cancels OSC value sent.
• SEND - sends the values to PCM.