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AutoCodes - Generic - B2586

B2586 Code - High Beams Are Inoperative

- Code Popularity: 3,614 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Jan 01, 2020
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|Code B2586 Possible Causes

  • 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 do I Fix the Code B2586?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B2586?

Labor: 1.0

The cost of diagnosing the B2586 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B2586 Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code B2586 Description

The Smart Junction Box (SJB) monitors the multifunction switch positions by sending out voltage reference signals to the multifunction switch through circuits. The return signal is sent through the circuit. When the multifunction switch is in the high beam position, the SJB provides a ground for the high beam relay coil (which is supplied battery voltage) through circuit. When the high beam relay is energized, power is routed to circuits from the BEC. The circuits supply power to the RH and LH high beams respectively. If a problem is detected with the circuits to the multifunction switch, the SJB will not provide a ground source for the high beam relay.

OBDII Code B2586 - High Beams Are Inoperative -
B2586 Code - High Beams Are Inoperative

|Need More Information on the B2586 Code?

Need more information on how to fix the B2586 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B2586 Code?

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|Code B2586 comments

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