B0937 GMC 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 GMC 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.
Code B0937 GMC Description
What are the Possible Causes of the DTC B0937 GMC?
- 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 GMC?
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 GMC 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.
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Frequently Asked Questions about B0937 GMC Code
1. What are common symptoms of OBDII code B0937 GMC?
- Common symptoms include inaccurate coolant level readings on the dashboard, warning lights related to coolant level, and potential overheating issues.
2. What causes the OBDII code B0937 GMC to trigger?
- The code is triggered when the coolant level sensor circuit is reporting a range or performance issue, which may be caused by a faulty sensor, wiring issues, or low coolant levels.
3. How can I diagnose the coolant level sensor circuit for OBDII code B0937 GMC?
- Diagnosing involves checking the sensor's electrical connections, inspecting for any visible damage to the wiring, and verifying the actual coolant level in the reservoir.
4. Can a low coolant level trigger the OBDII code B0937 GMC?
- Yes, a low coolant level can trigger the code because the sensor may not be able to accurately read the coolant level when it falls below a certain point.
5. What are the repair options for OBDII code B0937 GMC?
- Repair options include replacing the coolant level sensor, repairing any damaged wiring or connectors, and ensuring the coolant level is at the proper level.
6. Is it safe to continue driving with OBDII code B0937 GMC triggered?
- It is generally not recommended to drive with this code triggered as inaccurate coolant level readings can lead to overheating issues and potential engine damage.
7. Can a DIY enthusiast fix the OBDII code B0937 GMC issue?
- Depending on the skill level, a DIY enthusiast may be able to address the issue by replacing the coolant level sensor or checking and repairing the wiring connections.
8. How much does it typically cost to repair OBDII code B0937 GMC at a professional mechanic?
- Repair costs can vary depending on the exact cause of the issue, but replacing the coolant level sensor or fixing wiring problems may cost anywhere from $100 to $300 at a mechanic.
9. Will resetting the OBDII code B0937 GMC make the issue go away?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, the code is likely to trigger again.
10. How often does the coolant level sensor circuit need to be replaced in GMC vehicles?
- The coolant level sensor circuit does not typically require frequent replacement unless there is a malfunction, so it is more important to monitor for symptoms and address issues promptly.
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