B27C9 Code - Compressor Suction Refrigerant Temperature Sensor High
Quick Answer
The Diagnostic Trouble Code (DTC) sets when the compressor suction refrigerant temperature sensor recognition temperature is too high [more than 138.4°C (281.1°F)]. Common causes include Faulty Compressor Suction Refrigerant Temperature Sensor, Compressor Suction Refrigerant Temperature Sensor harness is open or shorted, Compressor Suction Refrigerant 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
- B27C9 indicates Compressor Suction Refrigerant Temperature Sensor High.
- Common causes
- Common causes include Faulty Compressor Suction Refrigerant Temperature Sensor, Compressor Suction Refrigerant Temperature Sensor harness is open or shorted, Compressor Suction Refrigerant 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 B27C9 Description
What are the Possible Causes of the DTC B27C9?
- Faulty Compressor Suction Refrigerant Temperature Sensor
- Compressor Suction Refrigerant Temperature Sensor harness is open or shorted
- Compressor Suction Refrigerant Temperature Sensor circuit poor electrical connection
- Faulty A/C Auto Amplifier
How to Fix the DTC B27C9?
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 B27C9 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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Get the B27C9 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B27C9 Infiniti — Compressor Suction Refrigerant Temperature Sensor High
- B27C9 Nissan — Compressor Suction Refrigerant Temperature Sensor High
Frequently Asked Questions about B27C9 Code
1. What are the common symptoms of OBDII code B27C9, Compressor Suction Refrigerant Temperature Sensor High?
- Common symptoms include the air conditioning system not cooling effectively, unusual temperature readings on the climate control panel, and potential compressor issues.
2. What are the possible causes of OBDII code B27C9?
- The code B27C9 may be triggered by a faulty compressor suction refrigerant temperature sensor, wiring issues, sensor calibration problems, or a malfunctioning climate control module.
3. How can I diagnose the cause of OBDII code B27C9?
- To diagnose the issue, you can use an OBDII scanner to read the code, inspect the compressor suction refrigerant temperature sensor and its wiring for damage, and perform sensor tests using a multimeter.
4. What are some repair tips for resolving OBDII code B27C9?
- Repair tips include replacing the faulty compressor suction refrigerant temperature sensor, repairing any damaged wiring, ensuring proper sensor calibration, and resetting the trouble code to see if the issue reoccurs.
5. Can I continue driving with OBDII code B27C9 present?
- It is not recommended to drive with the code B27C9 active, as it may lead to further damage to the air conditioning system and potentially affect the vehicle's overall performance.
6. How much does it typically cost to repair OBDII code B27C9?
- The cost of repairing OBDII code B27C9 can vary depending on the root cause of the issue, but it may range from $100 to $300 for parts and labor at a repair shop.
7. Is OBDII code B27C9 an urgent issue that needs immediate attention?
- While OBDII code B27C9 is not typically considered an emergency, it is advisable to address the issue promptly to prevent further damage to the air conditioning system and ensure optimal vehicle comfort.
8. Can a DIY enthusiast fix OBDII code B27C9 at home?
- Depending on your mechanical skills and access to tools, you may be able to address OBDII code B27C9 at home by replacing the sensor and checking the wiring, but professional diagnosis and repair are recommended for accurate resolution.
9. Will resetting the trouble code make OBDII code B27C9 disappear permanently?
- Resetting the trouble code associated with OBDII code B27C9 may temporarily clear the error, but if the underlying issue is not fixed, the code is likely to reappear once the system detects the problem again.
10. How can I prevent OBDII code B27C9 from recurring in the future?
- To prevent OBDII code B27C9 from coming back, ensure regular maintenance of the air conditioning system, perform system checks periodically, and address any sensor or wiring issues promptly.
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