AutoCodes – Cadillac – B0937 Cadillac

B0937 Cadillac 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 Cadillac 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 709

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 Cadillac 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 Cadillac - Coolant Level Sensor Circuit Range/Performance - AutoCodes.com — B0937 Cadillac Code - Coolant Level Sensor Circuit Range/Performance

What does this mean?

What are the Possible Causes of the DTC B0937 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac code?

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

Need Help with the Code?

Get the B0937 Cadillac 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 Cadillac Code

1. What are the common symptoms of OBDII code B0937 (Cadillac Coolant Level Sensor Circuit Range/Performance)?

- Common symptoms include dashboard warning lights related to coolant level, inaccurate coolant level readings, and potential overheating issues.

2. What can cause the OBDII code B0937 to trigger in a Cadillac?

- The code can be triggered by a faulty coolant level sensor, wiring issues in the sensor circuit, low coolant levels, or a malfunctioning PCM.

3. How can I diagnose the cause of OBDII code B0937 in my Cadillac?

- A diagnostic scan tool can help identify the specific cause of the code by checking the coolant level sensor readings, circuit integrity, and coolant levels.

4. What are some repair tips for fixing OBDII code B0937 in a Cadillac?

- Repair tips include checking and replacing the coolant level sensor, repairing any damaged wiring in the sensor circuit, ensuring proper coolant levels, and resetting the trouble codes after repairs.

5. Is it safe to continue driving with OBDII code B0937 in a Cadillac?

- It is recommended to address the issue as soon as possible to prevent potential overheating or engine damage due to inaccurate coolant level readings.

6. Can a DIY enthusiast fix OBDII code B0937 in a Cadillac?

- Depending on the cause of the code, some DIY enthusiasts with automotive repair experience may be able to address the issue by replacing the coolant level sensor or repairing wiring.

7. How much does it typically cost to repair OBDII code B0937 in a Cadillac?

- The cost of repairs can vary based on the specific cause of the code and whether professional labor is needed, but it may range from $100 to $300 or more.

8. How long does it take to repair OBDII code B0937 in a Cadillac?

- The repair time can vary depending on the cause of the code and the complexity of the repair, but it may take anywhere from 1 to 3 hours to complete.

9. Can OBDII code B0937 in a Cadillac cause other issues if left untreated?

- If left untreated, the code can lead to inaccurate coolant level readings, potential overheating, and engine damage due to insufficient cooling system monitoring.

10. Are there any preventive measures to avoid OBDII code B0937 in a Cadillac?

- Regularly checking coolant levels, performing maintenance on the cooling system, and addressing any warning signs of coolant issues can help prevent the triggering of this code.