Question about Jeep Cars & Trucks
Posted by Anonymous on
2011 , no jeep stated, they have names, what is it ,
is it in USA> and is it with automatic trans.
in usa there are 5 jeep models, pick on?
is engine gas (petrol or diesel)
my guess that was TPS, P0869
ill now pretend you said, Grand Cherokee, usa.
and i look in the book and it shows.
P0869-LINE PRESSURE HIGH you can read the words , in the book (JEEP)
"Theory of Operation
Line pressure is measured by the Line Pressure Sensor (LPS) and regulation is achieved by changing the duty cycle of the Pressure Control Solenoid (PCS) controlled by the Transmission Control System. (5% duty cycle = solenoid off = max line pressure, 62% duty cycle = solenoid on = min line pressure). The Transmission Control System calculates the desired line pressure based on inputs from both the engine and transmission.
The Transmission Control System calculates torque input to the transmission and uses it as the primary input to the desired line pressure calculation. This is called Torque Based Line Pressure. In addition, the line pressure is set to a preset level 827 or 931 kPa (120 or 135 psi) during shifts and in Park and Neutral to ensure consistent shift quality. The desired line pressure is continuously being compared to the actual line pressure. If the actual line pressure is consistently higher than the highest desired line pressure ever used in the current gear, the line pressure high DTC P0869 will set."
means get car serviced.
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Posted on Jan 02, 2017
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