P0686 Chrysler Code - Engine Control Module Power Relay Control Circuit Low
Quick Answer
The P0686 code for Chrysler vehicles indicates a problem with the Engine Control Module (ECM) Power Relay Control Circuit being low. Common causes include Faulty ECM power relay, Defective wiring in the power relay control circuit, Corrosion or loose connections in the 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
- P0686 Chrysler indicates Engine Control Module Power Relay Control Circuit Low.
- Common causes
- Common causes include Faulty ECM power relay, Defective wiring in the power relay control circuit, Corrosion or loose connections in the 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0686 Chrysler Description
The P0686 code for Chrysler vehicles indicates a problem with the Engine Control Module (ECM) Power Relay Control Circuit being low. This means that there is a malfunction in the circuit that controls the power relay for the ECM, which is responsible for managing the engine's performance, emissions, and overall operation. This issue can lead to poor engine performance, increased fuel consumption, and even engine stalling.
Common Causes of P0686 Chrysler
- Faulty ECM power relay
- Defective wiring in the power relay control circuit
- Corrosion or loose connections in the circuit
- ECM software issues
- Water or moisture damage to the relay or circuit
Symptoms of P0686 Chrysler
- Engine misfires
- Rough idling
- Decreased power and acceleration
- Difficulty starting
- Engine stalling
How to Fix P0686 Chrysler
- Perform a visual inspection of the power relay and control circuit for any visible damage or corrosion.
- Test the power relay to determine if it is functioning properly.
- Check the wiring in the control circuit for any breaks or loose connections.
- Clear the code with a diagnostic scanner and reset the ECM.
- If necessary, replace the power relay or repair any damaged wiring in the circuit.
Cost to Fix P0686 Chrysler
The cost of repairing a P0686 code can vary depending on the specific cause of the issue and the labor rates in your area. On average, replacing a faulty power relay or repairing wiring can cost between $100 and $300, including parts and labor. Keep in mind that additional diagnostic time may be needed to pinpoint the exact cause of the problem, which could affect the overall cost. It's recommended to consult with a trusted mechanic to get an accurate estimate for your specific vehicle.
Need more information about the P0686 Chrysler code?
Need more information on how to fix the P0686 Chrysler code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0686 Chrysler code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0686 Chrysler Code
No Frequently Asked Questions about P0686 Chrysler Code found.
Discuss the causes and fixes for P0686 Chrysler OBDII Code
Code P0686 Chrysler comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.