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AutoCodes - Generic - B1688

B1688 Code - Lamp Dome Input Circuit Short To Ground

- Code Popularity: 14,602 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By AutoCodes.com - Updated Feb 26, 2020
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|Code B1688 Possible Causes

  • Faulty Lamp Dome
  • Lamp Dome harness is open or shorted
  • Lamp Dome circuit poor electrical connection
  • Faulty Smart Junction Box (SJB)

|How do I Fix the Code B1688?

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 B1688?

Labor: 1.0

The cost of diagnosing the B1688 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 B1688 Possible Symptoms?

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

|Code B1688 Description

The Smart Junction Box (SJB) monitors the Lamp Dome Switch. The SJB sets the OBDII code when the Lamp Dome Switch is not to factory specifications.

OBDII Code B1688 - Lamp Dome Input Circuit Short To Ground - AutoCodes.com
B1688 Code - Lamp Dome Input Circuit Short To Ground

|Need More Information on the B1688 Code?

Need more information on how to fix the B1688 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B1688 Code?

Get the B1688 code diagnosed by a professional: Find a repair shop in your area

|Code B1688 comments

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