What Are the Causes of P0700?
Your vehicle may register P0700 due to:
1. Low or dirty transmission fluid: If your car is running on low or contaminated fluid, it may force the metal components to rattle and overheat, registering a fault code.
2. Faulty TCM power connectors or wiring: Loose wires can deliver insufficient power signals and prevent the TCM from transmitting important information efficiently, leading to transmission problems.
3. Malfunctioning transmission range sensor: The sensor detects the gear position and communicates this data to the TCM. If the sensor degrades, it may disrupt the communication, activating the error code.
4. Defective transmission shift solenoids: These solenoids control the flow of transmission fluid. However, if the fluid’s quality deteriorates due to contamination, the solenoids will get stuck and cause shifting issues.
5. Slipping converter clutch: A functional torque converter clutch ensures your gears shift seamlessly. But if the clutch malfunctions, the gears won’t change smoothly, which will trigger P0700.
6. Bad engine coolant temperature sensor (ECT): Your engine computer uses temperature sensor data for optimal shifting points. However, a coolant leak can degrade the sensor, causing poor communication between the two, resulting in transmission issues.
7. Defective transmission valve body: The valve body helps with smooth gear shifting. But if it’s clogged with sludge, it’ll deteriorate quickly, which could lead to gear slipping problems.