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AutoCodes - Generic - B1686

B1686 Code - Lamp Dome Input Circuit Open

- Code Popularity: 4,218 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Jun 12, 2019
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|Code B1686 Possible Causes

  • Faulty Lamp Dome Switch
  • Lamp Dome Switch harness is open or shorted
  • Lamp Dome Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

|How do I Fix the Code B1686?

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 B1686?

Labor: 1.0

The cost of diagnosing the B1686 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 B1686 Possible Symptoms?

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

|Code B1686 Description

The Body Control Module (BCM) monitors the Lamp Dome Switch. The BCM sets the OBDII code when the Lamp Dome Switch is not to factory specifications.

OBDII Code B1686 - Lamp Dome Input Circuit Open -
B1686 Code - Lamp Dome Input Circuit Open

|Need More Information on the B1686 Code?

Need more information on how to fix the B1686 code? Get Access to Factory Service Manuals

|Need Help with the B1686 Code?

Get the B1686 code diagnosed by a professional: Find a repair shop in your area

|Code B1686 comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B1686 code? Have you replaced any parts?
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