Engine-Codes - Generic - B0939

B0939 Code - Coolant Level Sensor Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B0939 code 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 is the B0939 code repair?

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 B0939 code

Labor: 1.0

The cost to diagnose the B0939 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.

|What are B0939 code possible symptoms?

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

|What is B0939 code meaning?

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.

|Need more information with the B0939 code?

Need more information on how to fix the B0939 code?
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|B0939 code information for specific makes

|Need help with a B0939 code?

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