Engine-Codes - Generic - B1391

B1391 Code - Oil Level Switch Circuit Failure

- Code Popularity: 4,253 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1391?

  • 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 to Fix the B1391 Code?

Start by checking 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.

|What is the Cost to Diagnose the Code B1391?

Labor: 1.0

The cost to diagnose the B1391 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B1391 Possible Symptoms?

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

|What Does the B1391 Code Mean?

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.

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

|Code B1391 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