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B0939 Buick Code - Coolant Level Sensor Circuit High

- Code Popularity: 583 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Mar 11, 2021
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|Code B0939 Buick Possible Causes

  • Low Coolant Level
  • Faulty Coolant Level Sensor
  • Coolant Level Sensor harness is open or shorted
  • Coolant Level Sensor circuit poor electrical connection

|How do I Fix the Code B0939 Buick?

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 Buick have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B0939 Buick?

Labor: 1.0

The cost of diagnosing the B0939 Buick 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 B0939 Buick Possible Symptoms?

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

|Code B0939 Buick Description

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

OBDII Code B0939 Buick - Coolant Level Sensor Circuit High - AutoCodes.com
B0939 Buick Code - Coolant Level Sensor Circuit High

|Need More Information on the B0939 Buick Code?

Need more information on how to fix the B0939 Buick code? Get Access to Factory Service Manuals

|Need Help with the B0939 Buick Code?

Get the B0939 Buick code diagnosed by a professional: Find a repair shop in your area

|Code B0939 Buick comments

Help us improve AutoCodes.com. 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 B0939 Buick code? Have you replaced any parts?
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