Lamp Dome Input Circuit Short To Ground
Table of contents
B1688 LINCOLN 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 code B1688 LINCOLN?
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.
Cost of diagnosing the B1688 LINCOLN code
The cost of diagnosing the B1688 LINCOLN 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.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1688 LINCOLN 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.