how to fix P0700 transmission code in my Ram 1500 DT (2019-Present)?

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, transmission fluid, transmission filter, cleaning tools.
• Disconnect the negative battery terminal to prevent electrical shorts while working on the transmission.

2. Fluid and Filter Replacement

• Sub-steps:
  1. Raise the vehicle securely on jack stands.
  2. Place a drain pan under the transmission pan and remove the pan bolts using a socket set.
  3. Carefully lower the transmission pan and allow the fluid to drain completely.
  4. Remove the old transmission filter and replace it with a new one.
  5. Clean the transmission pan and replace the gasket if necessary.
  6. Reinstall the pan with new or cleaned bolts, torque to manufacturer specifications (usually around 10-12 ft-lbs).

3. Wiring and Connector Inspection

• Sub-steps:
  1. Visually inspect the wiring harness connected to the TCM for any signs of fraying or shorts.
  2. Clean and reconnect any loose or corroded connectors.
  3. Use a multimeter to test the voltage and ground at the TCM connector to ensure proper operation.

4. TCM Testing

• Sub-steps:
  1. If no issues are found in wiring and fluid, test the TCM using a multimeter according to the manufacturer’s specifications.
  2. If the TCM is faulty, replace it with a compatible unit and reprogram if necessary using a specialized scan tool.

5. Reconnect and Test

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the engine and allow it to reach operating temperature.
  3. Check for any warning lights and ensure the transmission operates smoothly.