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Home/Cars/Ram/1500/DT (2019-Present)/how to fix P0700 code on my Ram 1500 DT (2019-Present)

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

Ram 1500 DT (2019-Present)

Error Codes
Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
513 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0700 transmission control issues in Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems.
  • ⚠Allow the engine to cool before working on the transmission.

Symptoms

  • •Check engine light illuminated
  • •Transmission slipping or erratic shifting
  • •Harsh engagement during gear changes
  • •Reduced fuel efficiency
  • •Vehicle may go into limp mode

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0700 and check for any additional transmission-related codes.
  2. 2Inspect the transmission fluid level and condition; look for contamination or burnt smell.
  3. 3Check the wiring and connectors to the transmission control module for damage or loose connections.
  4. 4Test the transmission control module with a multimeter to ensure it’s receiving proper voltage and ground.
  5. 5Use a scan tool to perform a live data check on transmission parameters while the vehicle is being driven.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the battery to ensure safety during repairs.

2. Inspect and Change Transmission Fluid

  • Sub-steps:
    1. Raise the vehicle and secure it on jack stands.
    2. Locate the transmission pan and remove the bolts using a socket set.
    3. Drain the old transmission fluid into a suitable container.
    4. Replace the transmission filter if applicable.
    5. Reinstall the transmission pan and torque the bolts to the manufacturer's specifications (typically around 10-12 Nm).
    6. Fill the transmission with new fluid (use the manufacturer-recommended type, usually ATF+4).

3. Repair or Replace TCM

  • Sub-steps:
    1. Locate the transmission control module (usually near the transmission or under the dashboard).
    2. Disconnect the wiring harness from the TCM.
    3. Remove the TCM using the appropriate tools (usually a socket set).
    4. Install the new or repaired TCM.
    5. Reconnect the wiring harness and ensure all connections are secure.

4. Clear Codes and Test Drive

  • Sub-steps:
    1. Reconnect the battery.
    2. Use the OBD-II scanner to clear the P0700 code and any additional transmission codes.
    3. Start the vehicle and allow it to idle for a few minutes.
    4. Conduct a test drive to ensure smooth transmission operation and that the check engine light does not reappear.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Socket set
  • Torque wrench
  • Multimeter
  • Fluid transfer pump

Parts Required

  • Transmission fluid (ATF+4)
  • Transmission filter (if applicable)
  • Transmission control module (if required)

Additional Information

Error CodeP0700
Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

3 items

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