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Home >> Saturn >> 2002 >> LW200 Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 312 (Automatic Transaxle - 4T40-E/4T45-E - Diagnosis (DTC P0719 To DTC P0757)) >> Diagnostic Trouble Codes >> DTC P0730 >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 Saturn LW300, 2003 Saturn LW200, 2003 Saturn L300, and 2003 Saturn L200. However, it is still accessible from the selected car via links, so may be relevant.

The PCM calculates gear ratio based on the transmission input and output speeds. The PCM compares the known transmission gear ratio to the calculated ratio for the selected gear range.

When the PCM detects an unknown transmission gear ratio, then DTC P0730 sets. DTC P0730 is a type C DTC.

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