how to fix P0700 error code on Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

548 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 malfunction in Ford F-150 (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

P0700

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the transmission fluid pan.

Symptoms

•Check engine light illuminated
•Erratic shifting or shifting delays
•Transmission slipping or harsh engagement
•Loss of power during acceleration
•Transmission overheating
•Engine misfire codes may also be present

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to confirm the P0700 code and check for any additional transmission-related codes.
2
Inspect the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Check the wiring and connectors leading to the Transmission Control Module for any signs of damage or corrosion.
4
Examine the transmission for any visible leaks or external damage.
5
Test the Transmission Control Module for proper operation using a multimeter.
6
Perform a visual inspection of the vehicle’s battery and charging system, ensuring voltages are within acceptable ranges.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

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
•Multimeter
•Wire stripper/crimper
•Transmission fluid pump
•Drain pan
•Funnel

Parts Required

•Transmission fluid (Mercon LV)
•Transmission filter (if applicable)
•Transmission pan gasket (if applicable)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to confirm the P0700 code and check for any additional transmission-related codes.
2
Inspect the transmission fluid level and condition; ensure it is at the correct level and not burnt or contaminated.
3
Check the wiring and connectors leading to the Transmission Control Module for any signs of damage or corrosion.
4
Examine the transmission for any visible leaks or external damage.
5
Test the Transmission Control Module for proper operation using a multimeter.
6
Perform a visual inspection of the vehicle’s battery and charging system, ensuring voltages are within acceptable ranges.

Solution

1. Preparation

Gather all necessary tools and parts.
Park the vehicle on a level surface and engage the parking brake.
Disconnect the battery’s negative terminal to prevent electrical shorts.

2. Inspect and Replace Transmission Fluid

Tools Required: Socket set, transmission fluid pump, drain pan, funnel
Remove the transmission fluid pan bolts using a socket wrench.
Carefully lower the pan and drain the fluid into a drain pan.
Inspect the old fluid for metal shavings or debris.
Replace the filter if necessary.
Reinstall the pan with a new gasket and torque bolts to manufacturer specifications (typically around 10-15 ft-lbs).
Refill the transmission with the correct type of fluid (usually Mercon LV for Ford).

3. Check and Repair Wiring

Tools Required: Multimeter, wire stripper/crimper
Using a multimeter, check for continuity in the wiring harness leading to the TCM.
Repair or replace any damaged wires or connectors.
Ensure all connections are clean and secure.

4. Test and Reset TCM

Tools Required: OBD-II scanner
Reconnect the battery’s negative terminal.
Use the OBD-II scanner to clear the P0700 code and any other related codes.
Start the vehicle and allow it to reach operating temperature.
Test drive the vehicle to confirm proper shifting and operation.