Hydraulic Pressure Sensor 1 -G545- AND Hydraulic Pressure Sensor 2 -G546-, REMOVING AND INSTALLING: Notes

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Special tools and workshop equipment required

Assembly Tool:T40305

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The Mechatronic remains installed.

CAUTION:

The system is under pressure.

Deactivate the ATF pump and drain the hydraulic pressure reservoir before removal.

-- Using the Vehicle Diagnostic Tester, empty the ATF pressure reservoir in the Transmission Control Module -J217- and disable the Transmission Fluid Auxiliary Hydraulic Pump -V552-. Refer to ATF PUMP, DEACTIVATING AND DRAINING THE HYDRAULIC PUMP RESERVOIR .

-- Remove the transmission fluid pan. Refer to TRANSMISSION FLUID PAN, REMOVING AND INSTALLING .

-- Release the catches -arrow A- of the connector for the Hydraulic Pressure Sensor 1 -G545- -1- and Hydraulic Pressure Sensor 2 -G546- -2- and disconnect from the Transmission Control Module -J217-.

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-- Disconnect the connector using the Assembly Tool:T40305 .

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-- Loosen the bolts in the sequence -7 to 1-.

Fig 1: Hydraulic Pressure Sensor 1 And Hydraulic Pressure Sensor 2 - Tightening Sequence

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-- Remove the Hydraulic Pressure Sensor 1 -G545- -1- and Hydraulic Pressure Sensor 2 -G546- with the retaining plate -arrow A- and wiring guide -arrow B-.

Installing

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Replace the wiring guide -2-.

-- Coat the new seal -1- with ATF and install in the valve body as shown.

-- Install the wiring guide -2- with both bolts -arrows- hand-tight.

-- Install the Hydraulic Pressure Sensor 1 -G545- -1- and Hydraulic Pressure Sensor 2 -G546- with the retaining plate -arrow A- and bolts -1 to 5- hand-tight.

Fig 2: Hydraulic Pressure Sensor 1 And Hydraulic Pressure Sensor 2 - Tightening Sequence

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-- Clip in the Hydraulic Pressure Sensor 1 -G545- -1- and the Hydraulic Pressure Sensor 2 -G546- into the wiring guide, then engage the Transmission Control Module -J217-.

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Pay attention that the cable routing is even.
The cables must not stick out or be kinked.
Adapt the cable routing by turning the pressure sensors -arrows- as shown.

-- Tightening specification and sequence. Refer to OVERVIEW - MECHATRONIC .

-- Install the connector with the Assembly Tool:T40305 .

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-- Install the transmission fluid pan. Refer to TRANSMISSION FLUID PAN, REMOVING AND INSTALLING .

-- After replacing the Hydraulic Pressure Sensor 1 -G545- -1- and Hydraulic Pressure Sensor 2 -G546-, the clutch valves must be calibrated in the Transmission Control Module -J217-.