Quick Answer
P0680 means: The P0680 code indicates a problem with the engine control module's power relay circuit.
Can I drive with P0680? Immediate attention is recommended to prevent potential engine damage.
Common Questions
What does P0680 mean and how does it affect my car?
The P0680 code signifies a problem with the engine control module's power relay circuit, which can lead to significant performance issues. It may cause the engine to stall or prevent your vehicle from starting altogether. If ignored, this code can lead to further damage to the ECM and related components, affecting the vehicle's overall performance and safety.
What are the most common causes of P0680 and how much does it cost to fix?
The most common cause of the P0680 code is a faulty ECM power relay, which can be replaced for about $50 to $150. Other causes include wiring issues and ECM failures, which can range from $100 to $1,200 to repair or replace. Regular maintenance and inspections can help prevent these issues.
Can I drive my car with P0680 or should I stop immediately?
Driving with a P0680 code is not advisable as it can lead to engine stalling or failure to start, posing safety risks. If the check engine light is on and other symptoms appear, it’s best to have your vehicle inspected as soon as possible to prevent further damage.
How can I diagnose P0680 myself using GeekOBD APP?
To diagnose the P0680 code using the GeekOBD APP, first, connect the OBD2 scanner to your vehicle's port. Open the app to retrieve the trouble code and any related freeze-frame data. Check for any additional codes that might indicate a broader issue. Follow the app’s recommendations for the next steps in diagnostics, including visual inspections and component tests.
What vehicles are most commonly affected by P0680?
The P0680 code is commonly seen in vehicles such as the 2011-2016 Ford Focus, the 2010-2016 Chrysler 300, and various Dodge models. Additionally, some Jeep models may also experience this issue. Always check for any recalls or technical service bulletins related to your specific vehicle to stay informed.
How can I prevent P0680 from happening again?
To prevent the P0680 code from recurring, ensure regular maintenance is performed on your vehicle, including checking the electrical system for wear and tear. Keeping an eye on the ECM power relay and its connections can help catch issues before they lead to problems. Additionally, using quality parts during repairs can improve reliability.
What is P0680?
The P0680 diagnostic trouble code (DTC) indicates an issue with the Engine Control Module (ECM) power relay control circuit. This code is frequently encountered in various vehicles, including models from Ford, Chrysler, and Dodge. The ECM is responsible for managing the engine's performance and efficiency by controlling various functions, such as fuel injection and ignition timing. When the ECM detects a problem in the power relay circuit—responsible for supplying power to the ECM—it triggers the P0680 code. Symptoms can range from a simple check engine light to more severe issues, including engine stalling or failure to start. If the power relay fails, the ECM may not receive the necessary voltage to operate correctly. This can lead to poor vehicle performance, increased emissions, and potential engine damage over time if left unaddressed. Understanding this code is crucial for drivers, as it can affect the vehicle's drivability and safety. It's essential to diagnose and resolve the issue promptly to prevent further complications. Common makes and models that may experience the P0680 code include the 2011-2016 Ford Focus, 2010-2016 Chrysler 300, and various Dodge models. If you encounter this code, it's advisable to seek professional diagnostic services to ensure a proper fix.
System: P - Powertrain (Engine, Transmission, Emissions)
Symptoms
Common symptoms when P0680 is present:
- Check engine light stays on constantly, indicating a persistent issue that needs attention.
- Engine hesitates during acceleration, leading to a frustrating driving experience and potential safety risks.
- Fuel economy decreased by 10-15%, which can lead to increased fuel expenses over time.
- Vehicle may not start at all, leaving you stranded until the issue is resolved.
- Intermittent stalling during driving, which can be dangerous if it happens at high speeds.
Possible Causes
Most common causes of P0680 (ordered by frequency):
- Faulty power relay for the ECM (60% likelihood) - This is the most common cause, often due to wear and tear over time.
- Wiring issues in the ECM power relay circuit (20% likelihood) - Damaged or corroded wiring can disrupt the circuit, leading to code P0680.
- ECM failure (10% likelihood) - While rare, a malfunctioning ECM can also trigger this code.
- Poor ground connections (5% likelihood) - A bad ground can cause electrical issues that may lead to the P0680 code.
- Short circuit or open circuit in the power relay circuit (5% likelihood) - A less common but serious issue that requires immediate attention.
P0680 Repair Costs
Cost Breakdown by Repair Type
Power Relay Replacement
Replacing the faulty power relay to restore proper function.
- Total: $50 - $150
- Success rate: 90%
Wiring Repair
Repairing or replacing damaged wiring in the ECM power circuit.
- Total: $100 - $300
- Success rate: 85%
ECM Replacement
Replacing the ECM if it is determined to be faulty.
- Total: $400 - $1,200
- Success rate: 95%
Money-Saving Tips for P0680
- Start with the most common and least expensive repairs first
- Use GeekOBD APP to confirm diagnosis before replacing expensive parts
- Consider preventive maintenance to avoid future occurrences
- Compare prices for OEM vs aftermarket parts based on your needs
- Address the issue promptly to prevent more expensive secondary damage
Diagnostic Steps
Professional P0680 Diagnosis Process
Follow these systematic steps to accurately diagnose P0680. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the ECM power relay and associated wiring (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test the ECM power relay and associated wiring (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation of the ECM after repairs and clear codes (10-15 minutes)
Step 4: System function test - Verify proper operation of the ECM after repairs and clear codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: Power Relay Replacement on 2014 Ford Focus
Vehicle: 2014 Ford Focus, 85,000 miles
Problem: Customer reported intermittent starting issues and check engine light activation.
Diagnosis: Diagnosed with the P0680 code after scanning with GeekOBD APP. Visual inspection revealed a faulty power relay.
Solution: Replaced the ECM power relay, ensuring all connections were secure.
Cost: $120 (Parts: $50, Labor: $70)
Result: The vehicle started reliably, and the check engine light remained off after the repair.
Case Study 2: Wiring Repair on 2012 Chrysler 300
Vehicle: 2012 Chrysler 300, 90,000 miles
Problem: Engine would not start and check engine light was on.
Diagnosis: P0680 code found. Further inspection indicated damaged wiring in the ECM power relay circuit.
Solution: Repaired the damaged wiring and re-secured connections.
Cost: $250 (Parts: $50, Labor: $200)
Result: The vehicle started successfully, and performance improved significantly.