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

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, transmission fluid, funnel, cleaning rags.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick/fill plug and check the fluid level and condition.
  3. If fluid is low, add the manufacturer-recommended transmission fluid using a funnel.
  4. If fluid is burnt or contaminated, proceed to drain and replace the fluid.
  5. To drain, locate the transmission pan, remove bolts, and carefully lower the pan to drain fluid.
  6. Replace the transmission filter if applicable and clean the pan before reinstallation.
  7. Refill the transmission with the correct fluid type and level.

3. Inspect and Test the Transmission Control Module (TCM)

• Sub-steps:
  1. Locate the TCM, usually found near the transmission or under the dashboard.
  2. Disconnect the TCM connector and inspect for corrosion or bent pins.
  3. Reconnect the TCM and clear any codes from the OBD-II scanner.
  4. If issues persist, consider reprogramming or replacing the TCM based on manufacturer specifications.

4. Check and Test Transmission Solenoids

• Sub-steps:
  1. Access the transmission solenoids by removing the transmission pan if necessary.
  2. Using a multimeter, test the resistance of each solenoid according to specifications in the service manual.
  3. Replace any solenoid that is out of specification.
  4. Reinstall the transmission pan and refill fluid as described above.