how to diagnose P0700 code in Ford Explorer Fifth Generation (2011-2019)

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

545 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 Explorer (2011-2019). Step-by-step guide with diagnostic procedures.

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 checking the transmission fluid.

Symptoms

•Check engine light illuminated
•Erratic shifting or harsh shifts
•Transmission slipping or failure to engage
•Reduced power during acceleration
•Delayed engagement when shifting into drive/reverse

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve any additional transmission-related codes.
2
Inspect the transmission fluid level and condition (color and smell) to ensure it is within specification.
3
Check the wiring and connectors related to the transmission control module for any signs of damage or corrosion.
4
Perform a visual inspection of the transmission for any obvious leaks or external damage.
5
Monitor the transmission fluid temperature and pressure, if applicable, to ensure the system is functioning properly.
6
Test the TCM for proper functionality using a multimeter to check for voltage and ground signals.

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
•Multimeter
•Electrical contact cleaner
•Socket set
•Screwdriver set
•Transmission fluid
•Funnel

Parts Required

•Transmission control module (if replacement is necessary)
•Transmission fluid (if low or dirty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to retrieve any additional transmission-related codes.
2
Inspect the transmission fluid level and condition (color and smell) to ensure it is within specification.
3
Check the wiring and connectors related to the transmission control module for any signs of damage or corrosion.
4
Perform a visual inspection of the transmission for any obvious leaks or external damage.
5
Monitor the transmission fluid temperature and pressure, if applicable, to ensure the system is functioning properly.
6
Test the TCM for proper functionality using a multimeter to check for voltage and ground signals.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface, and the engine is turned off.
Disconnect the battery to avoid electrical shorts.

2. Check Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick (if equipped) and remove it.
2. Wipe the dipstick clean and reinsert it to check the fluid level.
3. If low, add the appropriate transmission fluid (consult the owner’s manual for specifications).
4. If the fluid is dirty or burnt, consider a transmission fluid change.
Tools Required: Transmission fluid, funnel

3. Inspect Wiring and Connectors

Sub-steps:
1. Locate the TCM and inspect the wiring harness for frayed wires or loose connections.
2. Clean any corroded terminals with electrical contact cleaner.
3. Ensure all connections are secure.
Tools Required: Electrical contact cleaner, multimeter

4. Replace Transmission Control Module (if necessary)

Sub-steps:
1. Disconnect the battery again before proceeding.
2. Remove the TCM by unscrewing it from its mounting location.
3. Disconnect the electrical connectors from the TCM.
4. Install the new TCM by connecting the wiring harness and securing it in place.
Tools Required: Socket set, screwdriver set

5. Reconnect Battery and Clear Codes

Sub-steps:
1. Reconnect the battery terminals.
2. Use the OBD-II scanner to clear the P0700 code and any other related codes.
Tools Required: OBD-II scanner