B0174 GMC Code - Output Air Temperature Sensor 1 Circuit Range/Performance
Quick Answer
Air temperature sensors allow the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the discharge duct air, outside air and inside air temperatures. Common causes include Faulty Output Air Temperature Sensor 1, Output Air Temperature Sensor 1 harness is open or shorted, Output Air Temperature Sensor 1 circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B0174 GMC indicates Output Air Temperature Sensor 1 Circuit Range/Performance.
- Common causes
- Common causes include Faulty Output Air Temperature Sensor 1, Output Air Temperature Sensor 1 harness is open or shorted, Output Air Temperature Sensor 1 circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B0174 GMC Description
What are the Possible Causes of the DTC B0174 GMC?
- Faulty Output Air Temperature Sensor 1
- Output Air Temperature Sensor 1 harness is open or shorted
- Output Air Temperature Sensor 1 circuit poor electrical connection
- Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
How to Fix the DTC B0174 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 B0174 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 B0174 GMC Code
1. What are the common symptoms of OBDII code B0174 GMC?
- Common symptoms include poor engine performance, increased fuel consumption, rough idling, and the illumination of the Check Engine Light.
2. What causes the OBDII code B0174 GMC to trigger?
- The code is usually triggered by a faulty Output Air Temperature Sensor 1, issues with the sensor circuit, or problems with the sensor's range/performance.
3. How can I diagnose the Output Air Temperature Sensor 1 circuit range/performance issue?
- Diagnosing the problem involves using an OBDII scanner to retrieve the code, checking the sensor's wiring for any damage, and testing the sensor's functionality.
4. Can a dirty air filter cause the B0174 GMC code to appear?
- Yes, a dirty air filter can disrupt the airflow and affect the performance of the sensor, potentially leading to the triggering of the B0174 code.
5. What are some DIY repair tips for fixing the Output Air Temperature Sensor 1 circuit range/performance issue?
- DIY repair tips include checking and cleaning the sensor connector, ensuring there are no loose connections, and replacing the sensor if necessary.
6. Is it safe to continue driving with the B0174 GMC code present?
- While the vehicle may still be operable with the code present, it is recommended to address the issue promptly to prevent further damage and maintain optimal engine performance.
7. Can a mechanic easily reset the B0174 GMC code after repairing the issue?
- Yes, a mechanic can use an OBDII scanner to reset the code after repairing the Output Air Temperature Sensor 1 circuit range/performance problem.
8. Are there any recalls related to the Output Air Temperature Sensor 1 circuit range/performance issue in GMC vehicles?
- There may be recalls specific to certain GMC models affected by this issue, so it's advisable to check with the manufacturer or a dealership for any relevant information.
9. How much does it typically cost to repair the Output Air Temperature Sensor 1 circuit range/performance problem?
- The cost of repair can vary depending on the extent of the issue, labor rates, and whether the sensor needs to be replaced. It's recommended to obtain quotes from different repair shops.
10. Can a faulty Output Air Temperature Sensor 1 impact the vehicle's emissions?
- Yes, a faulty sensor can affect the air-fuel mixture, leading to increased emissions and potentially causing the vehicle to fail emissions tests.
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