how to fix P0705 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: P0705

3 min read

549 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 P0705 code related to the Transmission Range Sensor in Ford F-150 (2015-2020). Step-by-step guide with tools and procedures.

Error Code

P0705

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 inspecting or working on the transmission.

Symptoms

•Check engine light illuminated
•Transmission not shifting properly
•Vehicle stuck in one gear
•Difficulty starting the engine (in some cases)
•Unusual transmission noises
•Incorrect gear position indication on the dashboard

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0705 and check for additional codes.
2
Inspect the Transmission Range Sensor (TRS) wiring and connectors for damage or corrosion.
3
Test the TRS for proper voltage and ground using a multimeter.
4
Check the transmission fluid level and condition, looking for signs of contamination.
5
Verify the proper operation of the PRNDL (Park, Reverse, Neutral, Drive, Low) switch.
6
Clear the error codes and perform a road test to see if the code reappears.

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
•Socket set
•Torque wrench
•Screwdrivers

Parts Required

•Transmission Range Sensor (TRS)
•Transmission fluid (if needed)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0705 and check for additional codes.
2
Inspect the Transmission Range Sensor (TRS) wiring and connectors for damage or corrosion.
3
Test the TRS for proper voltage and ground using a multimeter.
4
Check the transmission fluid level and condition, looking for signs of contamination.
5
Verify the proper operation of the PRNDL (Park, Reverse, Neutral, Drive, Low) switch.
6
Clear the error codes and perform a road test to see if the code reappears.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, screwdrivers.
Disconnect the vehicle's battery to ensure safety while working on electrical components.

2. Inspect and Repair Wiring

Sub-steps:
1. Visually inspect the wiring harness connected to the TRS for any signs of fraying, corrosion, or damage.
2. If damage is found, repair or replace the wiring as necessary.
3. Ensure all connectors are clean and securely connected.

3. Replace the Transmission Range Sensor

Sub-steps:
1. Locate the TRS on the transmission (typically mounted on the side).
2. Remove the electrical connector from the TRS.
3. Use a socket set to remove the bolts securing the TRS to the transmission.
4. Replace with a new TRS, ensuring it is properly aligned.
5. Torque the bolts to the manufacturer's specifications (usually around 8-10 lb-ft).
6. Reconnect the electrical connector.

4. Check and Refill Transmission Fluid

Sub-steps:
1. Check the transmission fluid level using the dipstick (if applicable).
2. If low, add the manufacturer-recommended transmission fluid until the proper level is achieved.
3. Inspect the fluid for signs of burning or contamination; if contaminated, consider a fluid change.

5. Reconnect Battery and Test

Reconnect the battery terminals.
Start the vehicle and check for proper operation of the transmission.
Perform a test drive to confirm that the issue is resolved and monitor for any reoccurrence of the P0705 code.