Engine-CodesDodge – P0689 Dodge

P0689 Dodge Code - Auto Shutdown Relay Control Circuit Low

Quick Answer

The P0689 code for Dodge vehicles indicates an issue with the Auto Shutdown (ASD) relay control circuit being low. Common causes include Faulty ASD relay, Wiring issues or shorts in the relay control circuit, Malfunctioning PCM. 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
P0689 Dodge indicates Auto Shutdown Relay Control Circuit Low.
Common causes
Common causes include Faulty ASD relay, Wiring issues or shorts in the relay control circuit, Malfunctioning PCM.
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 12, 2024
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Code P0689 Dodge Description

The P0689 code for Dodge vehicles indicates an issue with the Auto Shutdown (ASD) relay control circuit being low. The ASD relay is an essential component in the vehicle's electrical system that controls the power supply to vital systems like the fuel pump, ignition system, and other critical components. When the PCM (Powertrain Control Module) detects that the voltage in the ASD relay control circuit is below the specified range, it triggers the P0689 code.

OBDII Code P0689 Dodge - Auto Shutdown Relay Control Circuit Low
P0689 Dodge Code - Auto Shutdown Relay Control Circuit Low

Common Causes of P0689 Dodge

  1. Faulty ASD relay
  2. Wiring issues or shorts in the relay control circuit
  3. Malfunctioning PCM
  4. Poor connections or corrosion in the circuit
  5. Electrical system issues

Symptoms of P0689 Dodge

  1. Engine stalling or not starting
  2. Check Engine Light illuminated
  3. Rough idling or poor engine performance
  4. Issues with fuel delivery or ignition system
  5. Electrical malfunctions in various systems

How to Fix P0689 Dodge

  1. Perform a thorough diagnosis using a scan tool to confirm the P0689 code and identify the specific cause of the issue.
  2. Inspect the ASD relay and its connections for any signs of damage or corrosion. Replace the relay if necessary.
  3. Check the wiring in the relay control circuit for any shorts or damage. Repair or replace the wiring as needed.
  4. Test the PCM for proper functioning and replace it if it is determined to be faulty.
  5. Clear the trouble codes, reset the PCM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0689 Dodge

The typical repair costs for addressing the P0689 code in a Dodge vehicle can range from $150 to $500, depending on the specific cause of the issue and the labor rates at the auto repair shop. Additional costs may apply if any parts need to be replaced. It is advisable to consult a professional mechanic for an accurate diagnosis and cost estimate based on the vehicle's make and model. Labor rates can vary between $80 and $150 per hour, so it's essential to consider these factors when budgeting for the repair.

Tech Notes for P0689 Dodge

Check all the ECM fuses, if the fuses are OK try replacing the ASD relay.

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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.

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