Code result
P0743
Torque Converter Clutch Circuit Electrical
High severity
What it means
An electrical fault in the torque converter clutch solenoid circuit — open, shorted, or out-of-range driver current. The transmission usually inhibits TCC apply when this code is active.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
TCC solenoid electrically failed
highOne of the most commonly reported causes for this code — check this first.
Wiring/connector fault
mediumA plausible cause — test and verify before replacing parts.
Related help
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