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Home >> Lexus >> 2007 >> SC 430 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission System >> DTC P0729 Gear 6 Incorrect Ratio >> Monitor Description
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Monitor Description

The ECM commands gear shifts by turning the shift solenoid valves "ON/OFF" and switching oil pressure to the valves in the valve body.

The DTC indicates that the sequence valve is locked in the direction the spring stretches and that shifting to the 6th gear is impossible.