System: Transmission · Standard: SAE J2012 generic code · Severity: Repair soon
The car will usually keep running, but continued driving risks secondary damage or an emissions failure. Book the repair.
Check fluid level and condition first. A genuine ratio fault usually means internal wear.
Start by reading every stored and pending code, not just this one. A single fault frequently sets three or four codes at once, and the first one in the freeze-frame data is usually the cause while the rest are consequences.
The controller calculates a gear ratio that does not match the gear it commanded. Incorrect Gear Ratio is a generic transmission code defined by SAE J2012, so it carries the same meaning on every OBD-II vehicle.
Repair soon. The car will usually keep running, but continued driving risks secondary damage or an emissions failure. Book the repair.
In rough order of how often they turn out to be the problem: Low transmission fluid; Worn clutch packs or bands; Valve body fault.
P0700 Transmission Control System MalfunctionP0715 Input/Turbine Speed Sensor Circuit MalfunctionP0720 Output Speed Sensor Circuit MalfunctionP0740 Torque Converter Clutch Circuit MalfunctionP0741 Torque Converter Clutch Circuit Performance or Stuck OffP0750 Shift Solenoid A MalfunctionCode number, system and definition follow the SAE J2012 / ISO 15031-6 generic diagnostic trouble code standard. Symptoms, causes and severity are the standard generic diagnostic logic for that fault. This page does not contain manufacturer-specific procedures, part numbers or pricing.