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Engine-Codes – GMC – B1317 GMC

B1317 GMC Code - Inside Air Temperature Sensor

Quick Answer

The B1317 GMC code refers to an issue with the Inside Air Temperature Sensor in the vehicle. Common causes include Faulty Inside Air Temperature Sensor, Wiring or electrical issues in the sensor circuit, Corrosion or damage to sensor connections. 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
B1317 GMC indicates Inside Air Temperature Sensor.
Common causes
Common causes include Faulty Inside Air Temperature Sensor, Wiring or electrical issues in the sensor circuit, Corrosion or damage to sensor connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1317 GMC Description

The B1317 GMC code refers to an issue with the Inside Air Temperature Sensor in the vehicle. This sensor is responsible for detecting the temperature inside the vehicle's cabin and sending this information to the climate control system to regulate the interior temperature. When this sensor malfunctions or fails, it can lead to inaccurate temperature readings, resulting in improper heating or cooling of the cabin.

OBDII Code B1317 GMC - Inside Air Temperature Sensor
B1317 GMC Code - Inside Air Temperature Sensor

Common Causes of B1317 GMC

  1. Faulty Inside Air Temperature Sensor
  2. Wiring or electrical issues in the sensor circuit
  3. Corrosion or damage to sensor connections
  4. Environmental factors causing sensor malfunction
  5. Electronic control unit (ECU) failure

Symptoms of B1317 GMC

  1. Inconsistent temperature readings on the climate control system
  2. Erratic changes in cabin temperature
  3. Climate control system not responding to temperature adjustments
  4. Inefficient heating or cooling of the cabin
  5. Defrosting or defogging functions not working properly

How to Fix B1317 GMC

  1. Begin by locating the Inside Air Temperature Sensor, usually located near the center console or dashboard.
  2. Inspect the sensor and its wiring for any visible damage or corrosion.
  3. Test the sensor using a multimeter to check for proper resistance readings.
  4. If the sensor is faulty, replace it with a new one and ensure proper calibration.
  5. Clear the diagnostic trouble codes and test the climate control system to verify proper functionality.

Cost to Fix B1317 GMC

The typical repair costs for addressing the B1317 GMC code can vary depending on the specific vehicle make and model, as well as the extent of the issue. In general, replacing the Inside Air Temperature Sensor and addressing any related wiring or connection issues can range from $100 to $300 for parts and labor. It's important to note that diagnostic time and labor rates at auto repair shops can fluctuate, so it's advisable to inquire about local rates for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1317 GMC Code

1. What does the OBDII code B1317 mean on a GMC?

The code B1317 indicates an issue with the Inside Air Temperature Sensor, which is used to monitor and regulate the cabin's air temperature.

2. What are the common symptoms of a B1317 code?

Symptoms may include incorrect cabin temperature readings, poor HVAC performance, or the climate control system not functioning as expected.

3. What causes the B1317 code to appear?

Common causes include a faulty inside air temperature sensor, damaged wiring, loose connections, or a malfunction in the HVAC control module.

4. How can I diagnose the B1317 code on my GMC?

Start by checking the inside air temperature sensor for damage or debris, inspect the wiring and connectors for corrosion or breaks, and test the sensor with a multimeter to confirm functionality.

5. Can I continue driving with the B1317 code on my GMC?

Yes, the vehicle can still be driven, but the climate control system may not operate correctly, leading to discomfort in extreme temperatures.

6. How do I fix a B1317 code on my GMC?

Repairs may involve replacing the inside air temperature sensor, repairing or replacing damaged wiring, or reprogramming/updating the HVAC control module.

7. Where is the inside air temperature sensor located in a GMC?

The sensor is typically located near the HVAC control panel or on the dashboard, depending on the GMC model.

8. How much does it cost to fix a B1317 code on a GMC?

The repair cost can range from $50 to $150 for a sensor replacement, but costs may vary depending on labor rates and additional repairs needed.

9. Can a dirty air filter trigger the B1317 code on a GMC?

No, a dirty air filter typically does not cause this code, as it is directly related to the inside air temperature sensor and its circuit.

10. Do I need special tools to repair a B1317 code?

Basic tools like a multimeter can help diagnose wiring and sensor issues, but specific GMC diagnostic equipment may be required for reprogramming or advanced troubleshooting.

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