How to check the automatic transmission shock shifting

This is the first case we have on Genesis (BH) 4.6 litters shock shifting. since this kind of model for example if the gear box has a problem the only thing we do is to diagnose where does the problem and there are only three option to replace to Mechatronics E module + valve body,check the engine system and to replace the automatic gear box assembly.
How to check automatic transmission shock shifting
Model: Genesis (BH)
Year Model: 2009
Fuel: Gasoline
Displacement: 4600cc
Subject: Shock shifting  then car cannot be move forward,you have to off the  engine then restart and shift to drive to move.
1) Condition

1. Automatic transmission shock shifting during driving.
2. Automatic transmission not shifting.

2) Cause

• Mechatronic e module + valve body.
• Transmission assembly.

3) Diagnosis

1. Scan tool check
   = P0729 Gear 6 incorrect ratio.
   TCM sets this code if the value of input speed (Turbine speed) is not equal to the value of output speed,when multiplied by the 1st gear ratio, while the transaxle is engaged in 1st gear. if this code is outputted,check the engine system first
   Possible Cause
   1) Engine System
   2) Mechatronic E module + valve body
   3) Transmission assembly
2. since we have no part available for this transmission.and it is not advice sable overhaul replace transmission with assembly.

3) Replace Guides

• Replace transmission with assembly

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