B0168 Buick Code - Passenger Compartment Temperature Sensor 2 Circuit
Quick Answer
Air temperature sensors allow the Heating, Ventilation, and Air Conditioning (HVAC) Control Module to monitor the temperature of the discharge air in the HVAC ducts. Common causes include Faulty Passenger Compartment Temperature Sensor 2, Passenger Compartment Temperature Sensor 2 harness is open or shorted, Passenger Compartment Temperature Sensor 2 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
- B0168 Buick indicates Passenger Compartment Temperature Sensor 2 Circuit.
- Common causes
- Common causes include Faulty Passenger Compartment Temperature Sensor 2, Passenger Compartment Temperature Sensor 2 harness is open or shorted, Passenger Compartment Temperature Sensor 2 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 B0168 Buick Description
What are the Possible Causes of the DTC B0168 Buick?
- Faulty Passenger Compartment Temperature Sensor 2
- Passenger Compartment Temperature Sensor 2 harness is open or shorted
- Passenger Compartment Temperature Sensor 2 circuit poor electrical connection
- Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
How to Fix the DTC B0168 Buick?
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
B0168 02: Passenger Compartment Temperature Sensor 2 Circuit Short to Ground
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0168 Buick 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 B0168 Buick Code
1. What does the OBDII code B0168 mean on a Buick?
The B0168 code indicates an issue with the Passenger Compartment Temperature Sensor 2 Circuit, which monitors cabin temperature for climate control functionality.
2. What are the symptoms of the B0168 code?
Symptoms may include erratic or incorrect cabin temperature readings, poor performance of the climate control system, or the HVAC system not maintaining the desired temperature.
3. What causes the B0168 code to appear?
Common causes include a faulty temperature sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning HVAC control module.
4. Can I drive my Buick with the B0168 code active?
Yes, you can drive the vehicle, but the climate control system may not function properly, leading to discomfort in the cabin.
5. How do I diagnose the B0168 code?
Diagnose by visually inspecting the temperature sensor and its wiring, checking for loose or damaged connections, and testing the sensor's resistance using a multimeter.
6. How can I fix the B0168 code on my Buick?
Repairs may involve replacing the faulty temperature sensor, repairing or replacing damaged wiring, or reprogramming or replacing the HVAC control module if necessary.
7. Where is the Passenger Compartment Temperature Sensor 2 located?
The sensor is typically located near the dashboard or in the HVAC control system, but its exact location can vary by model. Refer to the service manual for specifics.
8. How much does it cost to repair the B0168 code?
Repair costs vary depending on the issue, with sensor replacement typically ranging from $50 to $150, plus labor, while wiring or module repairs may cost more.
9. Can a B0168 code clear on its own?
The code may clear temporarily if the issue is intermittent, but it will likely return unless the underlying problem is resolved.
10. What tools are needed to fix the B0168 code?
You’ll need an OBDII scanner, a multimeter for testing the sensor and wiring, and possibly basic tools for removing and replacing components.
Discuss the causes and fixes for B0168 Buick OBDII Code
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