Engine-CodesDodge – P1680 Dodge

P1680 Dodge Code - Communication Bus

Quick Answer

The P1680 code for Dodge vehicles indicates a problem with the communication bus within the vehicle's network. Common causes include Faulty wiring or connectors, Malfunctioning control module, Software glitches in ECUs. 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
P1680 Dodge indicates Communication Bus.
Common causes
Common causes include Faulty wiring or connectors, Malfunctioning control module, Software glitches in ECUs.
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 10, 2024
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Code P1680 Dodge Description

The P1680 code for Dodge vehicles indicates a problem with the communication bus within the vehicle's network. The communication bus is essentially the system that allows different electronic control units (ECUs) in the vehicle to communicate with each other. This code typically suggests that there is a communication breakdown or disruption between various modules in the vehicle, which can lead to issues with the overall functionality of the vehicle.

OBDII Code P1680 Dodge - Communication Bus
P1680 Dodge Code - Communication Bus

Common Causes of P1680 Dodge

  1. Faulty wiring or connectors
  2. Malfunctioning control module
  3. Software glitches in ECUs
  4. Water damage to electronic components
  5. Battery or alternator issues affecting voltage supply

Symptoms of P1680 Dodge

  1. Check Engine Light illuminated
  2. Erratic engine operation
  3. Transmission shifting issues
  4. ABS warning light on
  5. Loss of communication with various vehicle systems

How to Fix P1680 Dodge

  1. Perform a thorough diagnostic scan to identify the specific modules experiencing communication issues.
  2. Inspect wiring and connectors for any damage or corrosion and repair or replace as needed.
  3. Check battery and alternator for proper voltage supply to electronic components.
  4. Update software in affected ECUs if necessary to address any glitches.
  5. Clear the fault codes and perform a test drive to ensure proper communication between modules.

Cost to Fix P1680 Dodge

The cost of repairing a P1680 code can vary depending on the specific cause of the communication issue. On average, the repair costs for this issue can range from $100 to $500, including parts and labor. However, the total cost can be higher if extensive diagnostics or component replacements are required. It's recommended to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of the vehicle. Keep in mind that labor rates can vary based on location and the shop's expertise, so it's advisable to research local rates for a more precise cost estimate.

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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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