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AutoCodes - Generic - B1391

B1391 Code - Oil Level Switch Circuit Failure

- Code Popularity: 4,342 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Mar 20, 2019
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|Code B1391 Possible Causes

  • Faulty Oil Level Switch
  • Oil Level Switch harness is open or shorted
  • Oil Level Switch circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

|How do I Fix the Code B1391?

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 B1391?

Labor: 1.0

The cost of diagnosing the B1391 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 B1391 Possible Symptoms?

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

|Code B1391 Description

The Powertrain Control Module (PCM) monitors the Oil Level Switch. The PCM sets the OBDII code when the Oil Level Switch is not to factory specifications.

OBDII Code B1391 - Oil Level Switch Circuit Failure -
B1391 Code - Oil Level Switch Circuit Failure

|Need More Information on the B1391 Code?

Need more information on how to fix the B1391 code? Get Access to Factory Service Manuals

|Information for Specific Makes

  • B1391 Hyundai Passenger Seat Track Position Sensor Short Or Short To Battery
  • B1391 KIA Passenger Seat Track Position Sensor Short Or Short To Battery

|Need Help with the B1391 Code?

Get the B1391 code diagnosed by a professional: Find a repair shop in your area

|Code B1391 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 B1391 code? Have you replaced any parts?
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