AutoCodes – GMC – B0163 2014 GMC Sierra

B0163 2014 GMC Sierra Code - Passenger Compartment Temperature Sensor Circuit

Quick Answer

The ambient light/sunload sensor integrates the sunload sensor and passenger compartment temperature sensor into a single assembly. Common causes include Faulty Ambient Light/Sunload Sensor, Ambient Light/Sunload Sensor harness is open or shorted, Ambient Light/Sunload 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: B0163 2014 GMC Sierra indicates Passenger Compartment Temperature Sensor Circuit.
Common causes: Common causes include Faulty Ambient Light/Sunload Sensor, Ambient Light/Sunload Sensor harness is open or shorted, Ambient Light/Sunload 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 246

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 10, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B0163 2014 GMC Sierra Description

The ambient light/sunload sensor integrates the sunload sensor and passenger compartment temperature sensor into a single assembly.
The solar sensor is connected to a low reference and a 5 V biased (pull-up) signal circuit voltage from the Heating, Ventilation, and Air Conditioning (HVAC) Control Module. As the sunload increases, the sensor signal voltage decreases. The signal varies between 0.1 - 4.9 V and is provided to the HVAC control module.
The passenger compartment temperature sensor is a negative temperature coefficient thermistor. A signal and low reference circuit enable the sensor to operate. As the air temperature increases, the sensor resistance decreases. The sensor signal varies between 0 - 5 V.
Bright or high-intensity light causes the vehicle's interior temperature to increase. The HVAC system compensates for the increased temperature by diverting additional cool air into the vehicle.

OBDII Code B0163 2014 GMC Sierra - Passenger Compartment Temperature Sensor Circuit - AutoCodes.com — B0163 2014 GMC Sierra Code - Passenger Compartment Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC B0163 2014 GMC Sierra?

Faulty Ambient Light/Sunload Sensor
Ambient Light/Sunload Sensor harness is open or shorted
Ambient Light/Sunload Sensor circuit poor electrical connection
Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

How to Fix the DTC B0163 2014 GMC Sierra?

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 does this mean?

Code Tech Notes

B0163:02 Passenger Compartment Temperature Sensor Circuit Short to Ground
B0163:05 Passenger Compartment Temperature Sensor Circuit Short to Battery or Open

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B0163 2014 GMC Sierra 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 B0163 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code B0163 in a 2014 GMC Sierra related to the Passenger Compartment Temperature Sensor Circuit?

- Common symptoms include inaccurate temperature readings on the HVAC display, the HVAC system blowing hot or cold air unexpectedly, or the climate control system not responding correctly.

2. What are the possible causes of OBDII code B0163 in a 2014 GMC Sierra?

- The code B0163 can be triggered by a faulty passenger compartment temperature sensor, wiring issues, a damaged sensor connector, or a malfunction in the HVAC control module.

3. How can I diagnose the cause of OBDII code B0163 in my 2014 GMC Sierra?

- A thorough diagnostic process involves checking the passenger compartment temperature sensor for proper operation, inspecting the sensor's wiring and connector for damage, and testing the HVAC control module for functionality.

4. Can I repair OBDII code B0163 in my 2014 GMC Sierra at home?

- Depending on your automotive repair skills, you may be able to address this issue at home by replacing the faulty passenger compartment temperature sensor, repairing any damaged wiring, or resetting the HVAC control module.

5. Is it safe to continue driving my 2014 GMC Sierra with OBDII code B0163 present?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to ensure the proper functioning of the HVAC system and to prevent potential discomfort while driving.

6. How much does it typically cost to repair OBDII code B0163 in a 2014 GMC Sierra?

- Repair costs for OBDII code B0163 can vary depending on the underlying cause, but expenses may include parts such as the temperature sensor, labor for diagnosis and repair, and potential costs for reprogramming the HVAC control module.

7. Can a malfunctioning passenger compartment temperature sensor affect other systems in my 2014 GMC Sierra?

- Yes, a faulty sensor can impact the overall performance of the climate control system, leading to inaccurate temperature readings, inconsistent heating or cooling, and potential discomfort for passengers.

8. Is there a way to reset the OBDII code B0163 in a 2014 GMC Sierra without addressing the underlying issue?

- While clearing the code may temporarily turn off the check engine light, it is important to diagnose and repair the root cause of the issue to prevent ongoing problems with the passenger compartment temperature sensor circuit.

9. Are there any preventive maintenance steps I can take to avoid OBDII code B0163 in my 2014 GMC Sierra?

- Regularly inspecting the HVAC system components, ensuring proper wiring connections, and addressing any temperature control issues promptly can help prevent the recurrence of OBDII code B0163 in your vehicle.

10. Can extreme temperatures or environmental conditions trigger OBDII code B0163 in a 2014 GMC Sierra?

- While extreme temperatures or environmental conditions may not directly cause this code, they can potentially exacerbate existing issues with the passenger compartment temperature sensor circuit, leading to the triggering of code B0163.