B2586 Code - High Beams Are Inoperative
Quick Answer
The Smart Junction Box (SJB) monitors the multifunction switch positions by sending out voltage reference signals to the multifunction switch through circuits. Common causes include Faulty High Beam Relay, High Beam Relay harness is open or shorted, High Beam Relay circuit poor electrical connection. 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
- B2586 indicates High Beams Are Inoperative.
- Common causes
- Common causes include Faulty High Beam Relay, High Beam Relay harness is open or shorted, High Beam Relay circuit poor electrical connection.
- 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.
Code B2586 Description
What are the Possible Causes of the DTC B2586?
- Faulty High Beam Relay
- High Beam Relay harness is open or shorted
- High Beam Relay circuit poor electrical connection
- Faulty Multifunction Switch
- Faulty Smart Junction Box (SJB)
How to Fix the DTC B2586?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2586 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the B2586 code?
Need more information on how to fix the B2586 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2586 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B2586 Ford — High Beams Are Inoperative
- B2586 Lincoln — High Beams Are Inoperative
- B2586 Mercury — High Beams Are Inoperative
Frequently Asked Questions about B2586 Code
1. What are the common symptoms of OBDII code B2586 - High Beams Are Inoperative?
- The common symptoms include the high beam headlights not functioning when activated.
2. What are the possible causes of OBDII code B2586?
- The code B2586 can be caused by issues such as a faulty high beam headlight bulb, a defective high beam relay, or a problem with the high beam switch.
3. How can I diagnose the root cause of OBDII code B2586?
- You can diagnose the issue by checking the high beam headlight bulbs for any signs of damage, testing the high beam relay for proper functionality, and inspecting the high beam switch for any defects.
4. Is it safe to continue driving with OBDII code B2586 triggered?
- It is generally safe to drive with this code, but it is important to address the issue promptly as driving without properly functioning high beams can compromise visibility at night.
5. Can I repair OBDII code B2586 on my own?
- Depending on your level of automotive expertise, you may be able to address the issue yourself by replacing the faulty high beam headlight bulb, relay, or switch. However, professional diagnosis and repair may be necessary for more complex issues.
6. Are there any quick tips to troubleshoot OBDII code B2586 before seeking professional help?
- Quick tips include checking the high beam headlight bulbs for visible damage, ensuring the high beam relay is receiving power, and testing the high beam switch for continuity.
7. How much does it typically cost to repair OBDII code B2586?
- The cost of repair can vary depending on the underlying cause of the issue. Replacing a high beam headlight bulb may cost around $20-$50, while fixing a faulty relay or switch could range from $50-$200 including parts and labor.
8. Are there any preventive measures to avoid triggering OBDII code B2586 in the future?
- Regularly inspecting and maintaining your vehicle's lighting system, including the high beams, can help prevent issues that lead to code B2586. Additionally, avoiding rough handling of the high beam switch can prolong its lifespan.
9. Can extreme weather conditions cause OBDII code B2586 to occur?
- Yes, extreme weather conditions such as heavy rain, snow, or extreme temperatures can potentially damage the high beam headlight bulbs or affect the functionality of the high beam relay, leading to code B2586.
10. Is it necessary to reset the OBDII system after repairing OBDII code B2586?
- It is recommended to clear the OBDII system after repairing code B2586 to ensure that the issue has been properly addressed and the warning light does not reappear unnecessarily.
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