P0970 OBD Error Code: Problem & Solutions

<<See All OBD Codes

How does this error code occur? What are the symptoms and causes? In order to engage with the clutch in the transmission, the transmission fluid pressure solenoid will allow either the TCM or the ECM to use hydraulic fluid so that as you drive, the engine will shift smoothly. If there is an issue with the electrical circuit or with the solenoid, then the P0970 error code will be stored.

There are 3 pressure control solenoids - A, B, C in automatic transmission whereas new transmission has more gears and solenoids. A P0970 error refers to an issue in the transmission pressure control solenoid "C" circuit. This is identified by the PCM. The main aim of the transmission pressure control solenoid is to adjust the pressure so that the vehicle moves smoothly. The pressure is monitored by the PCM and the transmission gear ratio is changed accordingly by directing the fluid to several hydraulic circuits. If the control circuit of the C pressure control solenoid has an opening then the P0970 error code will be set by the PCM.

What causes this problem with the Pressure Control Solenoid "C" Control Circuit Low?

• Damaged pressure control solenoid.
• Dirty transmission fluid.
• Controlled transmission filter.
• Imperfect transmission pump.
• Faulty transmission valve body.
• Choked hydraulic passages.
• Rusted connectors.
• Dented wires.
• Broken PCM.

1. Pressure Control Solenoid - Replace the damaged pressure control solenoid to avoid P0970 error.
2. Pressure Control Solenoid Wiring Harness - The broken pressure control solenoid wiring harness needs to be fixed immediately to avoid system malfunction.
3. Transmission Control Module - The TCM has to be damage free so that you can avoid P0970 error in your vehicle
4. Transmission Filter - Look for blocks or damages in the transmission filter and fix them soon.
5. Transmission Pump - A damaged transmission pump must be changed as soon as possible to avoid further troubles.
6. Transmission Valve Body - Is this component broken or damaged? Find a new replacement for transmission valve body from Parts Avatar.
7. Pressure Control Solenoid Valve - A proper functioning of this component is necessary to avoid P0970 error code.
8. Powertrain Control Module - Replacing the defective component can help your system function normally.
9. Engine Control Module - A faulty or broken ECM needs quick replacement so that you can skip P0970 error code.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD Code P0970 here:

Common Symptoms

• Fuel consumption is more.
• Triggering check engine light.
• Excessive heating of transmission.
• The transmission keeps slipping while trying to shift.
• Hard shift by transmission.
• Misfiring symptoms.
• Transmission enters limp mode.

Want to correct the Trouble Code P0970? Read these points mentioned below:

• Replacing the fluid as well as the filter.
• Changing the pressure control solenoid.
• Faulty transmission pump replacement.
• Repairing transmission valve body.
• Transmission should be flushed to clear channels.
• Fixing defective connectors.
• Altering wires.
• Varying PCM.

Parts Avatar Canada is here to solve all your issues related to car parts. We have stocked a wide range of best-priced pressure control solenoid, pressure control solenoid wiring harness, transmission control module, transmission filter, transmission pump, transmission valve body, pressure control solenoid valve assembly, and a lot more to help you out in fixing your car.

If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• Before you begin the troubleshooting process, carefully search the TSB for your vehicle by year, model and transmission. This helps to save time by leading you in the right direction.
• Firstly, the mechanic will check the level of fluid and see if it’s contaminated. Before you proceed to change the fluid, check when was the last time you replaced your fluid as well as the filter.
• The next step is to visually check the wires for possible damages. Inspect the connectors if they are eroded and if there are any damaged pins. The inspection must be performed to the transmission pressure control solenoids, the transmission pump, and the PCM as well. You will notice that the transmission pump is mechanically driven.
• The advanced process is specific to the vehicle and needs advanced tools to perform correctly. This process will need the help of special technical reference and digital multimeter. Before you proceed with advanced steps, gather the troubleshoot data of your vehicle. Voltage and fluid pressure requirement will change based on the specific model, design, and shape.
• Wires and connectors must have 0 ohms resistance. Remove power from the circuit and perform a continuity test to avoid short circuit and more damage. Wires may be faulty or a short circuit will indicate that there is no continuity and the components need replacement.

Common Mistakes When Diagnosing the P0970 Code

• Issues of misfire in the car engine.
• Faulty transmission pump.
• Internal problems in transmission.
• Issues related tothe driveline.

  P0971 - Pressure Control Solenoid "C" Control Circuit High