AutoCodes – Saturn – B0937 Saturn

B0937 Saturn Code - Coolant Level Sensor Circuit Range/Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the Coolant Level Sensor. Common causes include Low Coolant Level, Faulty Coolant Level Sensor, Coolant Level Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B0937 Saturn indicates Coolant Level Sensor Circuit Range/Performance.
Common causes: Common causes include Low Coolant Level, Faulty Coolant Level Sensor, Coolant Level Sensor harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 837

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B0937 Saturn 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 B0937 Saturn - Coolant Level Sensor Circuit Range/Performance - AutoCodes.com — B0937 Saturn Code - Coolant Level Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC B0937 Saturn?

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

How to Fix the DTC B0937 Saturn?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0937 Saturn code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B0937 Saturn code?

Need more information on how to fix the B0937 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0937 Saturn code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B0937 Saturn Code

1. What are common symptoms of OBDII code B0937 in a Saturn related to the Coolant Level Sensor Circuit Range/Performance?

- Common symptoms include the coolant level warning light illuminated on the dashboard, inaccurate coolant level readings, and potential overheating issues.

2. What are possible causes of OBDII code B0937 in a Saturn?

- Possible causes include a faulty coolant level sensor, damaged wiring or connectors in the coolant level sensor circuit, low coolant levels, or a malfunctioning instrument cluster.

3. How can I diagnose the Coolant Level Sensor Circuit Range/Performance issue in my Saturn?

- To diagnose this issue, you can start by visually inspecting the coolant level sensor and its connections, checking the coolant level in the reservoir, and using an OBDII scanner to read the trouble codes and sensor data.

4. Can a malfunctioning coolant level sensor cause other problems in my Saturn?

- Yes, a malfunctioning coolant level sensor can lead to inaccurate coolant level readings, potentially causing engine overheating, poor engine performance, or other cooling system issues.

5. How can I repair OBDII code B0937 in my Saturn related to the Coolant Level Sensor Circuit Range/Performance?

- Repair options may include replacing the coolant level sensor, repairing or replacing damaged wiring or connectors, topping up coolant levels, or resetting the trouble codes using an OBDII scanner.

6. Is it safe to drive my Saturn with OBDII code B0937 related to the Coolant Level Sensor Circuit Range/Performance?

- It is generally not recommended to drive your Saturn with this issue, as inaccurate coolant level readings can lead to engine overheating and potential damage. It's best to address the problem promptly.

7. Can I reset the OBDII code B0937 related to the Coolant Level Sensor Circuit Range/Performance without fixing the underlying issue?

- While you can reset the trouble code using an OBDII scanner, it's important to address the root cause of the problem to prevent further issues with the coolant level sensor.

8. How much does it cost to repair OBDII code B0937 in a Saturn?

- The cost of repair can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose to DIY or take your car to a mechanic. Costs may range from a simple sensor replacement to more extensive wiring repairs.

9. Can a DIY enthusiast fix OBDII code B0937 in a Saturn related to the Coolant Level Sensor Circuit Range/Performance?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to diagnose and repair this issue by replacing the coolant level sensor, checking and repairing wiring, or topping up coolant levels.

10. How often does OBDII code B0937 related to the Coolant Level Sensor Circuit Range/Performance occur in Saturn vehicles?

- This code can occur sporadically in Saturn vehicles, especially in older models or those with high mileage, due to sensor wear and wiring degradation over time. Regular maintenance can help prevent this issue.