AutoCodes – Saturn – B0161 Saturn

B0161 Saturn Code - Ambient Air Temperature Sensor Low

Quick Answer

The Driver Information Center (DIC) applies 5 volts to the ambient air temperature sensor. 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: B0161 Saturn indicates Ambient Air Temperature Sensor Low.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,134

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 Mar 10, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B0161 Saturn Description

The Driver Information Center (DIC) applies 5 volts to the ambient air temperature sensor. The ambient air temperature sensor is a thermistor which varies in resistance as the temperature changes. As the resistance of the ambient air temperature sensor increases, the DIC senses a larger voltage drop across the sensor, indicating a lower temperature. As the resistance of the ambient air temperature sensor decreases, the DIC senses a smaller voltage drop across the sensor, indicating a higher temperature.

OBDII Code B0161 Saturn - Ambient Air Temperature Sensor Low - AutoCodes.com — B0161 Saturn Code - Ambient Air Temperature Sensor Low

What does this mean?

What are the Possible Causes of the DTC B0161 Saturn?

Faulty Ambient Air Temperature Sensor
Ambient Air Temperature Sensor harness is open or shorted
Ambient Air Temperature Sensor circuit poor electrical connection

How to Fix the DTC B0161 Saturn?

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 B0161 Saturn 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 B0161 Saturn code?

Need more information on how to fix the B0161 Saturn code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0161 Saturn code diagnosed by a professional: Find a repair shop in your area

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 B0161 Saturn Code

1. What are the common symptoms of OBDII code B0161 Saturn - Ambient Air Temperature Sensor Low?

The common symptoms include inaccurate temperature readings on the vehicle's display, issues with the climate control system, and potential impact on fuel efficiency.

2. What are the possible causes of OBDII code B0161 Saturn - Ambient Air Temperature Sensor Low?

The code may 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 to identify if it's causing the B0161 code?

You can use a multimeter to test the sensor's resistance or voltage output, inspect the wiring and connectors for any visible damage, and compare the sensor's readings with the actual ambient temperature.

4. Can a malfunctioning ambient air temperature sensor affect other vehicle systems?

Yes, a faulty ambient air temperature sensor can affect the accuracy of the climate control system, potentially leading to uncomfortable cabin temperatures or incorrect readings on the vehicle's display.

5. How can I repair the OBDII code B0161 Saturn - Ambient Air Temperature Sensor Low?

Repair options include replacing the ambient air temperature sensor, repairing or replacing damaged wiring or connectors, and clearing the error code using an OBDII scanner.

6. Is it safe to continue driving with the B0161 code triggered?

While your vehicle may still be operable with the B0161 code, it's recommended to address the issue promptly to prevent potential impacts on fuel efficiency and the climate control system.

7. Can extreme weather conditions affect the ambient air temperature sensor and trigger the B0161 code?

Yes, extreme temperatures or exposure to moisture can potentially affect the ambient air temperature sensor's performance and lead to the triggering of the B0161 code.

8. Are there any DIY tips for troubleshooting the B0161 code before seeking professional help?

You can visually inspect the sensor and its connections, check for any visible damage, clean the sensor if necessary, and perform basic tests using a multimeter to diagnose the issue.

9. Will resetting the vehicle's ECU clear the B0161 code temporarily?

Resetting the ECU may temporarily clear the B0161 code, but if the underlying issue with the ambient air temperature sensor is not addressed, the code is likely to reappear.

10. How crucial is the ambient air temperature sensor for the overall functioning of the vehicle?

While the ambient air temperature sensor plays a role in providing accurate temperature readings for various vehicle systems, immediate failure of the sensor is unlikely to cause major drivability issues.