how to fix P0700 error code in 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

562 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 system 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 pan.

Symptoms

•Check engine light illuminated
•Harsh or erratic shifting
•Transmission slipping or not engaging
•Loss of power during acceleration
•Delayed engagement when shifting from park to drive/reverse
•Decreased fuel efficiency

Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to retrieve additional error codes.
2
Inspect the transmission fluid level and condition; check for contamination or burning smell.
3
Check for any visible leaks in the transmission system.
4
Inspect the transmission wiring harness and connectors for damage or corrosion.
5
Test the transmission solenoids using a multimeter for proper resistance values.
6
Verify the functionality of the transmission control module (TCM) by checking for updates or reprogramming needs.

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
•Fluid pump
•Torque wrench
•Drain pan

Parts Required

•Transmission fluid
•Transmission filter
•Gasket for transmission pan
•Transmission solenoids (if needed)

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Diagnostic Steps

1
Scan the vehicle's onboard diagnostics using an OBD-II scanner to retrieve additional error codes.
2
Inspect the transmission fluid level and condition; check for contamination or burning smell.
3
Check for any visible leaks in the transmission system.
4
Inspect the transmission wiring harness and connectors for damage or corrosion.
5
Test the transmission solenoids using a multimeter for proper resistance values.
6
Verify the functionality of the transmission control module (TCM) by checking for updates or reprogramming needs.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the battery to ensure safety while working on the transmission system.
Raise the vehicle and secure it on jack stands for access.

2. Check Transmission Fluid

Remove the transmission dipstick and wipe it clean.
Reinsert and remove the dipstick again to check fluid level.
If low, add the manufacturer-recommended transmission fluid until the correct level is achieved.
Inspect fluid condition; if dirty or burnt, plan for a fluid and filter change.

3. Replace Transmission Fluid and Filter

Tools Required: Socket set, fluid pump, drain pan, torque wrench.
Place the drain pan under the transmission pan and remove the pan bolts.
Carefully lower the transmission pan and remove the old filter.
Install the new filter and clean the pan before reinstallation.
Reattach the pan with new gaskets and torque to manufacturer specifications.

4. Inspect and Repair Wiring

Examine the wiring harness leading to the TCM and solenoids for signs of wear or damage.
Repair or replace any damaged wires or connectors as needed.

5. Test and Replace Solenoids (if necessary)

Tools Required: Multimeter.
Disconnect the electrical connectors from the solenoids.
Use a multimeter to test solenoid resistance according to the service manual specifications.
Replace any solenoids that are out of specification.

6. Reconnect Battery and Clear Codes

Reconnect the battery terminals.
Use the OBD-II scanner to clear the P0700 code and any other transmission-related codes.
Start the vehicle and allow it to reach operating temperature.