B3933 2015 Chevrolet Silverado Code - Air Conditioning Evaporator Temperature Sensor Circuit
Quick Answer
The air temperature sensors are a 2-wire negative temperature coefficient thermistor. Common causes include Faulty Air Conditioning Evaporator Temperature Sensor, Air Conditioning Evaporator Temperature Sensor harness is open or shorted, Air Conditioning Evaporator Temperature Sensor circuit poor electrical connection. 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
- B3933 2015 Chevrolet Silverado indicates Air Conditioning Evaporator Temperature Sensor Circuit.
- Common causes
- Common causes include Faulty Air Conditioning Evaporator Temperature Sensor, Air Conditioning Evaporator Temperature Sensor harness is open or shorted, Air Conditioning Evaporator Temperature Sensor circuit poor electrical connection.
- 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 B3933 2015 Chevrolet Silverado Description
What are the Possible Causes of the DTC B3933 2015 Chevrolet Silverado?
- Faulty Air Conditioning Evaporator Temperature Sensor
- Air Conditioning Evaporator Temperature Sensor harness is open or shorted
- Air Conditioning Evaporator Temperature Sensor circuit poor electrical connection
- Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
How to Fix the DTC B3933 2015 Chevrolet Silverado?
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 B3933 2015 Chevrolet Silverado 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 B3933 2015 Chevrolet Silverado Code
1. What does the OBDII code B3933 mean on a 2015 Chevrolet Silverado?
The B3933 code indicates an issue with the Air Conditioning Evaporator Temperature Sensor Circuit, which monitors the evaporator's temperature to maintain proper A/C performance.
2. What are the symptoms of the B3933 code in a 2015 Chevrolet Silverado?
Common symptoms include poor A/C performance, inconsistent cabin cooling, or the A/C system not working at all.
3. What causes the B3933 code to appear on a 2015 Chevrolet Silverado?
Potential causes include a faulty evaporator temperature sensor, damaged wiring or connectors, or a malfunctioning HVAC control module.
4. Can I still drive my 2015 Chevrolet Silverado with the B3933 code?
Yes, you can drive the vehicle, but the air conditioning system may not function properly, which could be uncomfortable in hot weather.
5. How do I diagnose the B3933 code on a 2015 Chevrolet Silverado?
Diagnose the code by visually inspecting the wiring and connectors, testing the evaporator temperature sensor for proper resistance, and checking for related control module faults.
6. How do I fix the B3933 code on a 2015 Chevrolet Silverado?
Repairs may involve replacing the evaporator temperature sensor, repairing damaged wiring or connectors, or reprogramming or replacing the HVAC control module.
7. How much does it cost to fix the B3933 code on a 2015 Chevrolet Silverado?
Repair costs can vary but typically range from $100 to $300, depending on whether the sensor, wiring, or control module needs to be replaced or repaired.
8. Where is the evaporator temperature sensor located on a 2015 Chevrolet Silverado?
The evaporator temperature sensor is typically located within the HVAC housing, near the evaporator core, behind the dashboard.
9. Can a faulty evaporator temperature sensor damage the A/C system?
While it won’t directly damage the system, a faulty sensor can cause improper operation, leading to reduced efficiency or discomfort.
10. Do I need special tools to repair the B3933 code on a 2015 Chevrolet Silverado?
Basic tools like a multimeter and an OBDII scan tool are generally sufficient for diagnosing and repairing this code.
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