Engine-CodesFord – P1704 Ford

P1704 Ford Code - Transmission System Conditions

Quick Answer

The P1704 diagnostic trouble code for Ford vehicles relates to the transmission system conditions. Common causes include Faulty wiring connections, Damaged transmission control module, Issues with the transmission control module communication circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1704 Ford indicates Transmission System Conditions.
Common causes
Common causes include Faulty wiring connections, Damaged transmission control module, Issues with the transmission control module communication circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1704 Ford Description

The P1704 diagnostic trouble code for Ford vehicles relates to the transmission system conditions. This code indicates that there is an issue with the automatic transmission control module communication circuit. The transmission control module (TCM) is responsible for managing the shifting of gears in automatic transmissions, ensuring smooth operation and optimal performance.

OBDII Code P1704 Ford - Transmission System Conditions
P1704 Ford Code - Transmission System Conditions

Common Causes of P1704 Ford

  1. Faulty wiring connections
  2. Damaged transmission control module
  3. Issues with the transmission control module communication circuit
  4. Corrosion in electrical connections
  5. Water damage to transmission control module

Symptoms of P1704 Ford

  1. Erratic shifting
  2. Hesitation when changing gears
  3. Harsh shifting
  4. Inability to shift gears
  5. Decreased fuel efficiency

How to Fix P1704 Ford

  1. Begin by diagnosing the specific cause of the P1704 code using a diagnostic scanner to pinpoint the issue.
  2. Inspect and repair any faulty wiring connections or damaged electrical components related to the transmission control module.
  3. Replace the transmission control module if it is found to be faulty or damaged.
  4. Clear the code from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, seek professional help from a qualified mechanic or transmission specialist for further diagnosis and repair.

Cost to Fix P1704 Ford

The typical repair costs for addressing the P1704 code in a Ford vehicle can range from $200 to $600, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check local rates for a more precise estimate, as rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. Labor rates commonly range between $80 and $150 per hour.

Need more information about the P1704 Ford code?

Need more information on how to fix the P1704 Ford code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1704 Ford code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1704 Ford Code

No Frequently Asked Questions about P1704 Ford Code found.

Discuss the causes and fixes for P1704 Ford OBDII Code

  • does anyone know what p 1704 is on 4.0 ford explorer

  • The P1704 means that there is a problem with the transmission and is usually combine with other codes that can give more detail what the problems.

  • Thanks for your repy,i just installed a new used transmission and it drove fine exept would not start in neutral.i was adjusting the shifter selecter on side of trans when the truck shut off and will not start.motor spins rather free and backfires.