P112F Buick Code - Radiator Coolant Temperature Sensor
Quick Answer
The Radiator Coolant Temperature (RCT) sensor is a variable resistor that measures the temperature of the engine coolant in the radiator. Common causes include Faulty Radiator Coolant Temperature (RCT) Sensor, Radiator Coolant Temperature Sensor harness is open or shorted, Radiator Coolant 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
- P112F Buick indicates Radiator Coolant Temperature Sensor.
- Common causes
- Common causes include Faulty Radiator Coolant Temperature (RCT) Sensor, Radiator Coolant Temperature Sensor harness is open or shorted, Radiator Coolant 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 P112F Buick Description
What are the Possible Causes of the DTC P112F Buick?
- Faulty Radiator Coolant Temperature (RCT) Sensor
- Radiator Coolant Temperature Sensor harness is open or shorted
- Radiator Coolant Temperature Sensor circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P112F Buick?
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 P112F Buick 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 P112F Buick Code
1. What does the OBDII code P112F mean on a Buick?
P112F indicates an issue with the radiator coolant temperature sensor, typically involving its performance or readings being out of the expected range.
2. What are the symptoms of a P112F code in a Buick?
Common symptoms include engine overheating, poor fuel efficiency, erratic temperature gauge readings, or the check engine light being illuminated.
3. What causes the P112F code to appear?
Potential causes include a faulty radiator coolant temperature sensor, damaged wiring or connectors, or issues with the engine control module (ECM).
4. Can I drive my Buick with a P112F code?
Driving with a P112F code is not recommended, as it may lead to engine overheating and potential long-term damage.
5. How do I diagnose a P112F code on my Buick?
Begin by inspecting the radiator coolant temperature sensor, checking for damaged wiring, loose connections, or signs of corrosion. Use an OBDII scanner to confirm and monitor sensor readings.
6. How much does it cost to fix a P112F code in a Buick?
Repairs typically range from $100 to $300, depending on whether the sensor needs replacement or if wiring and connections require repair.
7. How do I reset the P112F code after making repairs?
After repairs, use an OBDII scanner to clear the code. If the issue is resolved, the check engine light will remain off.
8. Can a low coolant level cause the P112F code in a Buick?
Yes, low coolant levels can affect the sensor's readings and trigger the P112F code, so ensure the coolant is at the proper level.
9. What tools are needed to fix a P112F code?
You may need an OBDII scanner, multimeter for electrical testing, and basic tools to replace the sensor if necessary.
10. How can I prevent the P112F code from recurring?
Regularly inspect and maintain your cooling system, keep coolant levels in check, and replace the radiator coolant temperature sensor as part of routine maintenance if it shows signs of wear.
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