how to troubleshoot Ram 1500 DT (2019-Present) P0700 transmission code

Solution

1. Preparation

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

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and check the fluid level.
  2. If fluid is low or discolored, drain the transmission fluid using a drain pan.
  3. Replace with the manufacturer-recommended transmission fluid type (e.g., ATF+4).
  4. Refill to the appropriate level and check for leaks.

3. Repair or Replace Wiring and Connectors

• Sub-steps:
  1. Inspect the wiring harness and connectors to the transmission control module.
  2. Repair any damaged wires or replace corroded connectors.
  3. Clean all connections with electrical contact cleaner before reassembling.

4. Test and Replace Transmission Control Module

• Sub-steps:
  1. If wiring is intact and fluid is in good condition, test the TCM for proper function.
  2. If the TCM is faulty, remove it by disconnecting the electrical connectors and unbolting it from its mount.
  3. Install the new TCM and reconnect all electrical connectors.
  4. Reconnect the battery.