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Home/Cars/Ford/F-150/12th Generation (2009-2014)/how to diagnose P0700 code in Ford F-150 12th Generation (2009-2014)

how to diagnose P0700 code in Ford F-150 12th Generation (2009-2014)

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

Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
571 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 (2009-2014). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect battery before working on electrical systems
  • ⚠Allow the engine to cool before opening the transmission fluid fill or drain plugs

Symptoms

  • •Check engine light illuminated
  • •Transmission slipping or harsh shifting
  • •Poor acceleration or loss of power
  • •Inability to shift into certain gears
  • •Transmission overheating
  • •Erratic speedometer readings

Diagnostic Steps

  1. 1Scan for error codes using OBD-II scanner
  2. 2Inspect transmission fluid level and condition
  3. 3Visually inspect wiring harnesses and connectors related to the TCM for damage or corrosion
  4. 4Use a multimeter to check the power and ground at the TCM
  5. 5Drive the vehicle to check for abnormal shifting patterns
  6. 6Look for any manufacturer-released TSBs related to the transmission issues

Solution

Solution

1. Preparation

  • Gather tools and parts needed for the repair.
  • Disconnect the battery to ensure safety while working on electrical components.
  • Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, and basic hand tools.

2. Inspect and Replace Transmission Fluid

  • Check Fluid Level: Use the dipstick to ensure fluid is at the correct level.
  • Replace Fluid: If the fluid is contaminated or burnt, drain the old fluid and replace it with new, manufacturer-recommended transmission fluid.
    • Sub-steps:
      1. Raise the vehicle and secure it on jack stands.
      2. Locate the transmission drain plug and remove it to drain the fluid.
      3. Replace the drain plug and tighten to manufacturer specifications.
      4. Refill with new transmission fluid through the dipstick tube.

3. Repair or Replace Wiring and Connectors

  • Inspect Connectors: Remove and clean any corroded connectors.
  • Repair Damaged Wiring: Use electrical tape or heat shrink tubing to repair any damaged wiring.
    • Sub-steps:
      1. Remove the TCM connector and inspect for bent pins.
      2. Repair or replace any damaged connectors as necessary.

4. Test and Replace TCM (if necessary)

  • If the TCM is faulty based on testing, replace it.
    • Sub-steps:
      1. Remove the old TCM by unscrewing it from its mounting location.
      2. Install the new TCM, ensuring it is securely fastened and connected properly.
      3. Reconnect the battery.

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
  • Basic hand tools

Parts Required

  • Transmission fluid (manufacturer-recommended type)
  • Replacement TCM (if diagnosed as faulty)
  • Electrical connectors (if damaged)

Additional Information

Error CodeP0700
Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

5 items

Parts

3 items

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