AutoCodes – GMC – B1317 GMC

B1317 GMC Code - Inside Air Temperature Sensor

Quick Answer

The Instrument Panel Module (IPM) monitors the temperature sensors to maintain the comfort level inside of the vehicle. Common causes include Faulty Inside Air Temperature Sensor, Inside Air Temperature Sensor harness is open or shorted, Inside Air Temperature Sensor 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: B1317 GMC indicates Inside Air Temperature Sensor.
Common causes: Common causes include Faulty Inside Air Temperature Sensor, Inside Air Temperature Sensor harness is open or shorted, Inside Air Temperature Sensor 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.

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Code Popularity 1,046

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1317 GMC Description

The Instrument Panel Module (IPM) monitors the temperature sensors to maintain the comfort level inside of the vehicle. The temperature sensors are a 2 wire negative temperature co-efficient thermistor. The IPM applies 5 volts to internal input resistors that are connected to the signal circuits of the air temperature sensors. The IPM provides the ground to the air temperature sensors through the low reference circuit. The IPM monitors the voltage drop across the air temperature sensors and uses the inputs for automatic control calculations. When the air temperatures are cold, the resistance of the sensors are high and the voltage signals are high. When the air temperatures are hot, the resistance of the sensors are low and the voltage signals are low. The IPM converts the voltage values to count values where one volt is approximately equal to 51 counts.

OBDII Code B1317 GMC - Inside Air Temperature Sensor - AutoCodes.com — B1317 GMC Code - Inside Air Temperature Sensor

What does this mean?

What are the Possible Causes of the DTC B1317 GMC?

Faulty Inside Air Temperature Sensor
Inside Air Temperature Sensor harness is open or shorted
Inside Air Temperature Sensor circuit poor electrical connection
Faulty Instrument Panel Module (IPM)

How to Fix the DTC B1317 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 B1317 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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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.