What does the P0868 trouble code mean?

2 Answers
VanEmma
07/29/25 8:05am
P0868 trouble code, applicable to all automobile manufacturers, means Transmission Fluid Pressure Low. The role of transmission fluid pressure: The shift solenoid valves control the hydraulic pressure to the transmission clutches by opening or closing the transmission fluid control valves to manage their engagement and disengagement, thereby achieving gear shifts. Precise control of transmission fluid pressure is crucial for smooth shifting. The Transmission Fluid Pressure (TFP) sensor sends the transmission fluid pressure as an electrical signal to the Transmission Control Module (TCU), and the transmission fluid pressure control solenoid valve is responsible for regulating the transmission fluid pressure. Notes on clearing the trouble code: After the vehicle's fault is resolved, it is often necessary to clear the trouble code. When clearing the trouble code, it is essential to follow the specified method for the corresponding vehicle model to clear the code. Under no circumstances should the method of disconnecting the negative terminal of the battery be used to clear the trouble code.
Was this review help?
7
1
Share
BraydenLynn
08/12/25 11:17am
I just encountered the P0868 trouble code when my car suddenly had shifting issues on the highway. This code usually indicates communication problems between the transmission control module and the computer, possibly due to loose wiring harness or module failure, causing sluggish vehicle response. In my case, I first checked the wiring connections myself and found a severely corroded connector, which worked fine after cleaning. I recommend scanning with a diagnostic tool immediately - don't delay, otherwise acceleration may become uncontrollable while driving. Regular maintenance of the engine compartment for moisture protection and electrical system checks are essential. As someone who drives frequently, I've found basic troubleshooting makes solutions manageable. If problems persist, it's best to have the module professionally inspected at a repair shop.
Was this review help?
2
5
Share
Expand All
More Forum Discussions

Why Should You Turn the Steering Wheel Earlier for Left Reverse Parking Than Right Reverse Parking?

Because the driver's position is on the left side of the vehicle, the pivot point for left reverse parking is closer to the driver. Here are some key points to note for reverse parking: 1. Pay attention to controlling the steering wheel; avoid unnecessary turns, aim accurately, and move at the right time. 2. During reversing, ensure not to stall or stop midway, as this may result in failure and immediate disqualification. 3. Maintain an appropriate distance between the car body and the corner of the parking space—neither too narrow nor too wide. If one side has distance issues, the other side will likely have problems too. 4. The most crucial aspect of reverse parking is clutch control. Poor control can lead to excessive speed, causing you to cross the line, or insufficient speed, making the system fail to detect movement and resulting in a penalty for stopping, leading to immediate disqualification.
5
0
Share

What is the size of a 500-12 tire?

500 refers to the tread width of 5.0 inches. 12 refers to the rim diameter of 12 inches. Therefore, the size of a 500-12 tire is 12 inches. The 500-12 tire is an inner tube-type rubber tire, generally used for agricultural vehicles or three-wheeled motorcycles. The international standard tire code represents the section width and aspect ratio in millimeters. This is followed by: tire type code, rim diameter (inches), load index (allowable load-bearing mass code), and allowable vehicle speed code. For example, in 215/60R17, the first number 215 represents a tire width of 215MM, 60 indicates that the tire's aspect ratio is 60%, meaning the section height is 60% of the width, and 17 represents a rim diameter of 17 inches. The middle letter R stands for radial tire. If you want to replace the tire yourself, you can follow the steps below: Take out the spare tire and jack, place the jack under the frame of the tire to be replaced, ensuring the jack touches the metal part of the frame; Raise the jack until it supports the car, the jack should be under the vehicle, check and ensure the jack is at a right angle to the ground; Remove the hub cover, loosen the nuts counterclockwise, do not completely loosen the nuts, just enough to eliminate resistance, when loosening the nuts for the first time, keeping the tire on the ground ensures that the nuts turn rather than the tire; turn the nuts counterclockwise until they are loose, repeat this step for all lug nuts, and completely remove the nuts; Place the new tire on the hub, carefully align the tire rim with the wheel bolts, install the lug nuts, tighten the nuts by hand until all nuts are concealed, at this point the tire replacement is complete. In addition to the model, the tire is also marked with the following common data: Tire cord material: represented by Chinese pinyin, such as M-cotton cord, R-rayon cord, N-nylon cord, G-steel cord, ZG-steel radial cord tire. Speed rating: indicates the maximum speed at which the tire can carry the specified load under specified conditions. Letters A to Z represent the certified speed ratings of tires from 4.8km/h to 300km/h. Common speed ratings include: Q: 160km/h; H: 210km/h; V: 240km/h; W: 270km/h; Y: 300km/h.
19
0
Share

What is the range of the Han DM?

The NEDC range of the Han DM in pure electric mode reaches 81km. Below are the relevant details: 1. Exterior: The Han DM features a hexagonal grille design, which is very wide and adopts a honeycomb pattern. The headlights on both sides are connected by a chrome strip, with the Han logo embedded in the middle of the panel, giving the front fascia a very grand appearance. Additionally, the air vents on both sides of the front bumper enhance the sporty atmosphere of the vehicle. At the rear, the taillights adopt a full-width design with a very refined shape, offering a strong sense of technology when illuminated. Moreover, there is a small '4.7s' badge on the lower right of the rear, which is a signature design by BYD, representing its 0-100 km/h acceleration time. 2. Dimensions: The Han DM measures 4960/1910/1495mm in length/width/height, with a wheelbase of 2920mm. It is positioned as a mid-to-large-sized sedan. From practical experience, the Han DM offers excellent space performance. 3. Interior: The interior combines various materials, and the seats feature a diamond-quilted pattern, significantly enhancing the sense of quality and luxury. Additionally, it includes a full LCD instrument panel, a 15.6-inch rotatable central touchscreen, and a very compact electronic gear shifter, all complemented by ambient lighting, giving the interior a strong technological feel. It's worth noting that the 15.6-inch rotatable central touchscreen is not only large in size but also offers very clear display and extremely rich content. 4. Powertrain: The Han DM is equipped with a hybrid system consisting of a 2.0T engine and an electric motor, delivering a combined maximum power of 321KW and a peak torque of 650N.m. Its 0-100 km/h acceleration time is 4.7 seconds, and its NEDC range in pure electric mode reaches 81km. Additionally, all models come with electric all-wheel drive.
14
1
Share

Why Do People Fail the Subject One Test?

Inadequate mastery of knowledge. The Subject One test offers two attempts per session, with a total of 5 sessions, amounting to 10 attempts. If you fail the driver's license Subject One test, you can only continue retaking it. There are no shortcuts for Subject One—other than memorizing thoroughly, you can summarize the knowledge points using techniques, practice more, and memorize repeatedly. Below are relevant introductions about Subject One: 1. Introduction One: Subject One, also known as the theoretical test or driver theory test, is part of the motor vehicle driver's license assessment. According to the "Regulations on the Application and Use of Motor Vehicle Driver's Licenses," the test content includes driving theory basics, road safety laws and regulations, local regulations, and related knowledge. 2. Introduction Two: The test is computer-based, consisting of 100 questions, with a passing score of 90 or above. The test papers are randomly selected and combined by the computer driver examination system according to the proportion specified in the "Motor Vehicle Driver's License Work Regulations." 3. Introduction Three: Subject One refers to the theoretical driver's test conducted at the vehicle management office. It is a mandatory licensing exam for driver's license applicants. Subject One is part of the motor vehicle driver training and examination syllabus, which divides the test portion into three subjects. The tests are organized by the traffic management departments of public security authorities and proceed in the order of Subject One, Subject Two, and Subject Three. Passing the previous subject is required to proceed to the next one; if you fail, you must retake the same subject.
4
2
Share

What are the rear space dimensions of the Wuling Zhiguang?

Taking the 5-seater version as an example, according to data from Autohome: the trunk has a depth (length) of 1140mm, a height of 1270mm, and an opening width of 1160mm in its conventional state. When the second-row seats are folded forward, the maximum depth reaches 1470mm. For the 7-seater version, the minimum depth is 280mm, only accommodating backpacks or small suitcases. The third-row seats can be folded forward, but they are bolted in place and require tools for adjustment, making it inconvenient. Additional relevant information is as follows: 1. Introduction: As of August 19, 2019, the latest model of Wuling Zhiguang on sale is the 2018 version, with four models available, all meeting the China V emission standard. The Wuling Zhiguang is positioned as a minivan, with body styles available in both truck and minivan versions. The minivan version has body dimensions of 3797/1510/1835mm and a wheelbase of 2500mm. 2. Configuration: In terms of power, the entire lineup is equipped with a 1.2L inline 4-cylinder naturally aspirated engine, paired with a 5-speed manual transmission, delivering a maximum power of 60KW, maximum horsepower of 82PS, and maximum torque of 115N·m. For suspension, the front suspension is a MacPherson independent suspension, while the rear suspension is a solid axle non-independent suspension. The drive system is rear-wheel drive.
13
2
Share

What does it mean when the water temperature light turns red?

Generally, if the water temperature light on the dashboard stays on, it indicates a fault in the engine's cooling system. Below is an introduction to the car dashboard: 1. Introduction to the car dashboard: With the advancement of electronic technology and the emergence of new sensors and electronic display components, electronic dashboards have been rapidly adopted in vehicles. Common indicators include the fuel indicator, washer fluid indicator, electronic throttle indicator, front and rear fog light indicators, and warning lights. 2. Function of the car dashboard: The car dashboard serves as a device that reflects the working conditions of various vehicle systems. It continuously monitors the vehicle's status and provides the driver with necessary operational parameters, serving as an important interface for communication between the driver and the vehicle.
15
4
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.