B0158 Code - Ambient Air Temperature Sensor Circuit
Quick Answer
The Ambient Air Temperature Sensor is located behind the grille. Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient 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
- B0158 indicates Ambient Air Temperature Sensor Circuit.
- Common causes
- Common causes include Faulty Ambient Air Temperature Sensor, Ambient Air Temperature Sensor harness is open or shorted, Ambient 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.
Code B0158 Description
What are the Possible Causes of the DTC B0158?
- Faulty Ambient Air Temperature Sensor
- Ambient Air Temperature Sensor harness is open or shorted
- Ambient Air Temperature Sensor circuit poor electrical connection
- Faulty Instrument Cluster
How to Fix the DTC B0158?
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
B0158:05 Ambient Air Temperature Sensor Circuit High Voltage/Open
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B0158 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 B0158 code?
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Get the B0158 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B0158 Buick — Ambient Air Temperature Sensor Circuit
- B0158 Cadillac — Ambient Air Temperature Sensor Circuit
- B0158 Chevrolet — Ambient Air Temperature Sensor Circuit
- B0158 GMC — Ambient Air Temperature Sensor Circuit
Frequently Asked Questions about B0158 Code
1. What are the common symptoms of OBDII code B0158 (Ambient Air Temperature Sensor Circuit)?
- Common symptoms include erratic temperature readings on the vehicle's display, inaccurate outside temperature readings, and potential issues with the HVAC system.
2. What are the possible causes of OBDII code B0158?
- The code B0158 can be triggered by a faulty ambient air temperature sensor, damaged wiring or connectors related to the sensor, or issues with the sensor's circuit.
3. How can I diagnose the ambient air temperature sensor circuit issue?
- You can diagnose the issue by visually inspecting the sensor and its wiring for any visible damage. Using a multimeter to test the sensor's resistance can also help identify if the sensor is faulty.
4. What are some repair tips for fixing OBDII code B0158?
- Repair tips include replacing the ambient air temperature sensor if it is found to be faulty, repairing any damaged wiring or connectors, and clearing the code to see if the issue persists.
5. Can I drive my vehicle with OBDII code B0158?
- While driving with this code may not pose an immediate danger, it is recommended to address the underlying issue promptly to prevent further complications with the vehicle's temperature monitoring system.
6. How much does it typically cost to repair OBDII code B0158?
- The cost of repairing OBDII code B0158 can vary depending on the extent of the issue and whether you choose to address it yourself or take it to a professional mechanic. Costs may include parts and labor.
7. Will resetting the OBDII code B0158 make it go away permanently?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, the code is likely to reappear once the system detects the problem again.
8. Is the ambient air temperature sensor circuit easy to replace?
- Replacing the ambient air temperature sensor can be relatively straightforward, especially if you have some experience with automotive repairs. However, accessing the sensor's location may vary depending on the vehicle model.
9. Can extreme weather conditions affect the ambient air temperature sensor circuit?
- Yes, extreme weather conditions such as extreme heat or cold can potentially affect the ambient air temperature sensor's performance, leading to inaccurate readings and triggering OBDII code B0158.
10. How important is the ambient air temperature sensor for the vehicle's operation?
- While the ambient air temperature sensor may not directly impact the vehicle's drivability, it plays a crucial role in providing accurate temperature information to the vehicle's systems, such as the climate control and engine management.
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