how do I fix P0700 code in my Ram 1500 DT (2019-Present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check Transmission Fluid

• Required Tools: Transmission fluid dipstick, funnel, replacement fluid (if needed).
• Remove the dipstick and check fluid level; add fluid if low.
• Inspect fluid condition; if it is dark or has a burnt smell, replace the fluid.

3. Inspect and Repair Wiring/Connectors

• Required Tools: Multimeter, wire brush, dielectric grease.
• Visually inspect the wiring harness and connectors to the TCM for any signs of wear or corrosion.
• Use a multimeter to check for continuity in the wiring.
• Clean any corroded connectors with a wire brush and apply dielectric grease to prevent future corrosion.

4. Replace Transmission Control Module (if necessary)

• Required Tools: Socket set, torque wrench, screwdriver.
• Locate the TCM, usually near the transmission or on the driver's side under the dashboard.
• Disconnect the battery again before removing the TCM.
• Unplug the wiring harness from the TCM and remove the mounting bolts.
• Install the new TCM, reconnect the wiring harness, and secure it with bolts to the specified torque (typically 89 in-lbs, but verify with the service manual).
• Reconnect the battery.