B0163 GMC 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 GMC 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.
Code B0163 GMC Description
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.
What are the Possible Causes of the DTC B0163 GMC?
- 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 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.
Code Tech Notes
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 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.
Need more information about the B0163 GMC code?
Need more information on how to fix the B0163 GMC code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B0163 GMC code diagnosed by a professional: Find a repair shop in your area
Information for Specific GMC Models
- B0163 2014 GMC Sierra — Passenger Compartment Temperature Sensor Circuit
- B0163 2015 GMC Sierra — Passenger Compartment Temperature Sensor Circuit
- B0163 2016 GMC Sierra — Passenger Compartment Temperature Sensor Circuit
- B0163 2017 GMC Sierra — Passenger Compartment Temperature Sensor Circuit
- B0163 2018 GMC Sierra — Passenger Compartment Temperature Sensor Circuit
Frequently Asked Questions about B0163 GMC Code
1. What are common symptoms of OBDII code B0163 GMC related to the Passenger Compartment Temperature Sensor Circuit?
- Common symptoms include inaccurate temperature readings on the HVAC system, inconsistent heating or cooling performance, and automatic climate control issues.
2. What could cause the OBDII code B0163 GMC to trigger for the Passenger Compartment Temperature Sensor Circuit?
- Possible causes include a faulty passenger compartment temperature sensor, wiring issues in the sensor circuit, or a malfunction in the HVAC control module.
3. How can I diagnose the OBDII code B0163 GMC for the Passenger Compartment Temperature Sensor Circuit?
- Diagnose the code by checking the sensor's resistance with a multimeter, inspecting the sensor and its wiring for damage, and scanning the HVAC system for any related trouble codes.
4. Can I repair the OBDII code B0163 GMC for the Passenger Compartment Temperature Sensor Circuit myself?
- Depending on your skills and tools, you may be able to replace the faulty sensor, repair damaged wiring, or reset the HVAC system to clear the code. Professional help may be needed for complex issues.
5. What are some tips for preventing the recurrence of OBDII code B0163 GMC related to the Passenger Compartment Temperature Sensor Circuit?
- Regularly inspect the sensor and its wiring for damage, follow proper maintenance schedules for your HVAC system, and avoid exposing the sensor to extreme temperatures or moisture.
6. Is it safe to continue driving with the OBDII code B0163 GMC triggered for the Passenger Compartment Temperature Sensor Circuit?
- It is generally safe to drive with this code, but you may experience discomfort due to inconsistent temperature control. It is recommended to address the issue promptly to restore optimal HVAC performance.
7. Are there any recalls or technical service bulletins related to OBDII code B0163 GMC for the Passenger Compartment Temperature Sensor Circuit?
- Check with your GMC dealership or refer to online databases for any relevant recalls or technical service bulletins regarding this code. Updates or repairs may be available under warranty.
8. How much does it typically cost to repair OBDII code B0163 GMC for the Passenger Compartment Temperature Sensor Circuit at a dealership or auto repair shop?
- Repair costs can vary depending on the specific issue, parts needed, and labor rates. Expect to pay anywhere from $100 to $300 for sensor replacement or wiring repairs, excluding diagnostic fees.
9. Can a faulty Passenger Compartment Temperature Sensor affect the overall performance of my vehicle?
- While the sensor primarily affects cabin comfort, a malfunction can indirectly impact the efficiency of the HVAC system and potentially lead to increased fuel consumption if left unresolved.
10. How do I reset the OBDII code B0163 GMC for the Passenger Compartment Temperature Sensor Circuit after making repairs?
- You can reset the code with an OBDII scanner or by disconnecting the car battery for a few minutes. Ensure the underlying issue has been addressed before clearing the code to prevent it from reoccurring.
Discuss the causes and fixes for B0163 GMC OBDII Code
Code B0163 GMC comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
