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B2586 Mercury Code - High Beams Are Inoperative

- Code Popularity: 473 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B2586 Mercury?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other 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)
⚠ Does your Mercury have Safety Recalls? → Check here

How to Fix the DTC B2586 Mercury?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2586 Mercury code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code B2586 Mercury 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 Mercury - High Beams Are Inoperative - AutoCodes.com
B2586 Mercury Code - High Beams Are Inoperative

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Code B2586 Mercury comments

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