Severity: Fix right away. Driving risks expensive damage or a breakdown.
The computer found a fault in the circuit for the torque converter clutch, the lock-up that connects the engine directly to the transmission at cruising speed to save fuel.
Check the fluid level and condition, test the solenoid, and have the converter checked by a transmission shop.
You may feel shuddering at highway speed and use more fuel. Get it checked — a failing converter can contaminate the transmission.
Avoid driving until it is checked — towing is the safer choice. You may feel shuddering at highway speed and use more fuel. Get it checked — a failing converter can contaminate the transmission.
The most common causes are: Failed torque converter clutch solenoid; Damaged wiring; Low transmission fluid; Failing torque converter; Worn clutch material. A scan tool and a visual check of the parts above is where a technician starts.
Check the fluid level and condition, test the solenoid, and have the converter checked by a transmission shop.
