The control module detected that the measured gear ratio did not match the commanded gear (Incorrect gear ratio).
Possible causes
- Wiring
- TR sensor/switch
- shift solenoids
- transmission mechanical fault
TuningBot DTC Database · v4.37.14
Generic (OBD-II) interpretation in the TuningBot DTC database.
The control module detected that the measured gear ratio did not match the commanded gear (Incorrect gear ratio).
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Incorrect gear ratio. The control module detected that the measured gear ratio did not match the commanded gear (Incorrect gear ratio).
P0730 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: Diagnostic Strategy and DTC Logic