what does it mean when my Ram 1500 DT (2019-Present) shows P0700 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick (if applicable) and pull it out.
  2. Wipe the dipstick clean and reinsert it to check the fluid level.
  3. If low, add the appropriate transmission fluid as specified in the owner's manual.
  4. Inspect the fluid condition; if it's dark or smells burnt, a fluid change is necessary.

3. Inspect Wiring and Connectors

• Sub-steps:
  1. Visually inspect the wiring harness connected to the TCM and transmission for any signs of wear or damage.
  2. Disconnect the connectors carefully and check for corrosion or bent pins.
  3. If damage is found, repair or replace the wiring harness or connectors as needed.

4. Test Transmission Control Module (TCM)

• Sub-steps:
  1. Reconnect the battery and power up the vehicle.
  2. Using a multimeter, check the voltage at the TCM connector while the vehicle is running.
  3. Ensure the TCM receives the correct voltage as specified in the service manual. If not, further diagnose the power supply or ground issues.

5. Replace Transmission Fluid (if necessary)

• Sub-steps:
  1. Raise the vehicle securely on jack stands.
  2. Place a drain pan under the transmission and remove the drain plug to drain old fluid.
  3. Replace the transmission filter if applicable, following the manufacturer's instructions.
  4. Reinstall the drain plug and refill the transmission with new fluid, checking the level as you fill.