Engine-Codes.com
Engine-Codes – Dodge – P1689 Dodge

P1689 Dodge Code - No Communication Between ECM and Injection Pump Module Data

Quick Answer

The P1689 diagnostic trouble code (DTC) for Dodge vehicles indicates that there is a communication issue between the Engine Control Module (ECM) and the Injection Pump Module Data. Common causes include Faulty wiring or connectors, Defective ECM or Injection Pump Module, Loose or corroded electrical connections. 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
P1689 Dodge indicates No Communication Between ECM and Injection Pump Module Data.
Common causes
Common causes include Faulty wiring or connectors, Defective ECM or Injection Pump Module, Loose or corroded electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 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 P1689 Dodge Description

The P1689 diagnostic trouble code (DTC) for Dodge vehicles indicates that there is a communication issue between the Engine Control Module (ECM) and the Injection Pump Module Data. The ECM, also known as the engine control unit, is responsible for controlling various engine functions, such as fuel injection, ignition timing, and emissions control. The Injection Pump Module Data, on the other hand, is a crucial component that regulates the fuel delivery to the engine.

OBDII Code P1689 Dodge - No Communication Between ECM and Injection Pump Module Data
P1689 Dodge Code - No Communication Between ECM and Injection Pump Module Data

Common Causes of P1689 Dodge

  1. Faulty wiring or connectors
  2. Defective ECM or Injection Pump Module
  3. Loose or corroded electrical connections
  4. Software glitches or programming errors
  5. Water damage or exposure to moisture in the electrical system

Symptoms of P1689 Dodge

  1. Engine stalling or hesitation during acceleration
  2. Difficulty starting the engine
  3. Reduced fuel efficiency
  4. Check Engine Light illuminated on the dashboard
  5. Rough idling or inconsistent engine performance

How to Fix P1689 Dodge

  1. Perform a thorough inspection of the wiring and connectors between the ECM and Injection Pump Module. Repair or replace any damaged components.
  2. Check for loose connections or corrosion in the electrical system. Clean and secure all connections.
  3. Test the ECM and Injection Pump Module for proper functioning. Replace any defective modules.
  4. Clear the diagnostic trouble codes and reset the ECM to establish communication between the modules.
  5. Conduct a road test to ensure that the communication issue has been resolved and that the vehicle is operating correctly.

Cost to Fix P1689 Dodge

The typical repair costs for addressing the P1689 code can vary depending on the extent of the issue and the specific components that need to be repaired or replaced. In general, the repair costs for this issue can range from $200 to $600, including parts and labor. It's important to note that 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 advisable to consult with a qualified mechanic or service center to obtain a more precise estimate based on the specific circumstances.

What does this mean?

Tech Notes for P1689 Dodge









User Submitted Video

Need more information about the P1689 Dodge code?

Need more information on how to fix the P1689 Dodge code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1689 Dodge 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 P1689 Dodge Code

1. What are the common symptoms of OBDII code P1689 in a Dodge vehicle?

- Common symptoms include stalling, rough idling, loss of power, and the check engine light coming on.

2. What does the OBDII code P1689 in a Dodge indicate?

- The code indicates a communication issue between the Engine Control Module (ECM) and the Injection Pump Module.

3. What are the possible causes of code P1689 in a Dodge related to communication failure?

- Possible causes include damaged wiring, loose connections, faulty ECM or Injection Pump Module, or a malfunctioning communication circuit.

4. How can I diagnose the cause of the communication failure between the ECM and Injection Pump Module in a Dodge?

- Use a diagnostic scanner to retrieve the code, check for loose connections, inspect wiring for damage, and perform a thorough inspection of the ECM and Injection Pump Module.

5. How can I repair OBDII code P1689 in a Dodge if the issue is related to wiring or connections?

- Repair any damaged wiring, ensure all connections are tight and secure, and clear the code to see if the issue is resolved.

6. If the ECM or Injection Pump Module is faulty, what are the repair options for OBDII code P1689 in a Dodge?

- Repair or replace the faulty ECM or Injection Pump Module with a new or remanufactured unit to resolve the communication issue.

7. Can a DIY enthusiast fix OBDII code P1689 in a Dodge, or is professional help recommended?

- While basic checks like inspecting connections can be done by a DIY enthusiast, diagnosing and repairing complex issues may require professional help.

8. How important is it to address OBDII code P1689 in a Dodge promptly?

- It is essential to address the code promptly to prevent further damage to the vehicle and ensure optimal performance.

9. Are there any preventive maintenance measures to avoid encountering code P1689 in a Dodge?

- Regularly inspecting and maintaining the vehicle's electrical connections and wiring can help prevent communication issues that trigger this code.

10. Can code P1689 in a Dodge be intermittent, and how should I address such a situation?

- Yes, the code can be intermittent due to loose connections or intermittent faults. In such cases, a thorough inspection and repair of connections are crucial.

Discuss the causes and fixes for P1689 Dodge OBDII Code

Submit a New Comment