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Home/Cars/Ford/F-150/12th Generation (2009-2014)/how to fix P0700 transmission code on my Ford F-150

how to fix P0700 transmission code on my Ford F-150

Ford F-150 12th Generation (2009-2014)

Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
576 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 fault in Ford F-150. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before opening the transmission or checking fluid levels.

Symptoms

  • •Check engine light illuminated
  • •Rough or erratic shifting
  • •Delayed engagement when shifting from park to drive
  • •Transmission overheating
  • •Decreased fuel efficiency
  • •Slipping transmission under load

Diagnostic Steps

  1. 1Scan the vehicle's OBD-II system for any additional trouble codes related to the transmission.
  2. 2Inspect the transmission fluid level and condition; check for contamination or burnt smell.
  3. 3Examine the wiring and connectors leading to the transmission control module (TCM) for damage or corrosion.
  4. 4Test the TCM using a multimeter to ensure it is receiving proper voltage.
  5. 5Check for any signs of fluid leakage around the transmission area.
  6. 6Verify that the transmission range sensor is functioning correctly.

Solution

Solution

1. Preparation

  • Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, fluid catch pan, and safety gloves.
  • Ensure the vehicle is parked on a level surface, engine turned off, and allowed to cool down.
  • Disconnect the battery to prevent electrical shorts.

2. Address Fluid Issues

  • Sub-steps:
    1. If low, add the recommended transmission fluid type (check the owner’s manual for specifications).
    2. If the fluid is contaminated or burnt, drain the old fluid using a fluid catch pan.
    3. Replace with fresh transmission fluid, ensuring to fill to the correct level as specified in the service manual.

3. Repair or Replace Wiring and Connectors

  • Sub-steps:
    1. Inspect the wiring harness for frays or breaks; repair any damaged wires with appropriate electrical tape or connectors.
    2. Clean any corroded connectors using electrical cleaner and a brush, ensuring a secure fit.

4. Test and Replace TCM (if necessary)

  • Sub-steps:
    1. Using the multimeter, check if the TCM is receiving the correct voltage (typically around 12V).
    2. If voltage is correct but the transmission issues persist, consider replacing the TCM.
    3. Remove the old TCM by unscrewing the mounting bolts and disconnecting the wiring harness.
    4. Install the new TCM, reconnect the wiring harness, and secure it with bolts to the specified torque.

5. 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 codes.
    3. Perform a test drive to ensure that the transmission shifts smoothly 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
  • Multimeter
  • Socket set
  • Torque wrench
  • Fluid catch pan
  • Safety gloves

Parts Required

  • Transmission fluid
  • Transmission Control Module (if replacement is needed)
  • Electrical connectors (if repairs are needed)

Additional Information

Error CodeP0700
Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

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