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Old 03-04-2008, 10:57 AM
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NissanTech NissanTech is offline
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2004 Xterra
 
Join Date: Jun 2005
Location: California
Age: 52
Posts: 12,536
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The Pressure solenoid is inside the transmission and it helps regulate the pressure from the trans fluid pump.

There is also a "Dropping resistors", that controls the voltage from the ECM to the solenoid. If the resistor fail, it can also trigger the same code. The resistor is located in the engine compartment.

Before removing the transmission valve body to inspect the solenoid, you should inspect the resistor and replaced if necessary.
Attached Thumbnails
P0745 Pressure Control Solenoid Malfunction-figure1-gif   P0745 Pressure Control Solenoid Malfunction-figure4-gif   P0745 Pressure Control Solenoid Malfunction-figure6-gif  
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