What is a line pressure solenoid?
The line pressure solenoid is a variable force-type solenoid and is an integral part of the solenoid pack. The TCM controls the variable force solenoid by increasing or decreasing the duty cycle to obtain the pressure necessary. When duty cycle is at its lowest range (5% or solenoid off) pressure rises to maximum.
How do I fix code P0745?
What Repairs Will Fix P0745?
- Changing the fluid and filter.
- Replace faulty pressure control solenoid.
- Repair or replace a faulty transmission pump.
- Repair or replace defective transmission valve body.
- Transmission flush to clean passages.
- Cleaning corrosion from connectors.
- Repairing or replacing wiring.
What is the code P0778?
P0778 is a diagnostic trouble code (DTC) for “Pressure Control Solenoid B Electrical”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does P0745 mean?
When the code P0745 appears in your powertrain control module (PCM), it means that the PCM is not reading the correct electrical voltage drops from the Pressure Control Solenoid as it does its job.
How much does it cost to replace a transmission solenoid?
To replace the solenoid in your transmission, you will pay anywhere between $150 and $400. The labor should take 2-4 hours and cost you $60-$100 per hour. The parts can be as little as $15 or as much as $100 for each solenoid.
Is there a fuse for shift solenoid?
Most modern vehicles have some sort of transmission control module that monitors the transmission through various sensors, such as the shift-position sensor and the transmission speed sensor. Additionally, the TCM and solenoid wiring are protected by fuses.
Can I drive with a bad solenoid?
The short answer is that, yes, you can usually drive a car with a bad shift solenoid. Fluid pressure control should continue to function in the gear with the working solenoid, but you should avoid putting any serious stress on the transmission — towing or drag racing — just in case.
How much does it cost to fix a pressure control solenoid?
The replacement will cost you about $60-$140 for one hour. Generally, it cost you $150-$400 to get your vehicle inspected and the system replaced on the diagnosis of any fault. Single solenoids are around $15-$100 to buy. The entire pack will be a bit more expensive and range between $50-$300.
What is a pressure control solenoid B?
In order to shift gears, the ECU has to control the fluid pressure inside the transmission, using small plunger devices called pressure control solenoids. If a mechanical fault has been detected with the solenoid using the ‘B’ designation, a P0776 diagnostic trouble code will be stored.
What does P0776 mean?
pressure control solenoid circuit
Code P0776 is an indication that your vehicle’s PCM has found an abnormality related to the electronic pressure control solenoid circuit or simply the solenoid itself.
Where is the pressure control solenoid located?
In most cases, solenoids are located inside of the oil pan, connected to the valve body. Depending on what you drive, the technician may be able to replace just the failed shift solenoid.
What is P0744 engine code?
P0744 is a diagnostic trouble code (DTC) for “Torque Converter Clutch Circuit Intermittent”. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.
What does a line pressure solenoid valve do?
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
What does the p0746 code on a Nissan mean?
P0746 NISSAN Meaning The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port.
What causes a transmission solenoid to go bad?
When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body.
What are the symptoms of a p0745 Nissan transmission failure?
Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced. The cost to diagnose the P0745 NISSAN code is 1.0 hour of labor.