AutoCodes – Generic – B160F

B160F Code - Twilight/Ambient Light Sensor

Quick Answer

The Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module uses a variety of sensors to adjust HVAC operation to obtain optimal performance. Common causes include Faulty Sun Sensor, Sun Sensor harness is open or shorted, Sun Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B160F indicates Twilight/Ambient Light Sensor.
Common causes: Common causes include Faulty Sun Sensor, Sun Sensor harness is open or shorted, Sun Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 6,201

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 26, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B160F Description

The Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module uses a variety of sensors to adjust HVAC operation to obtain optimal performance. These sensors are continuously monitored by the A/C Heater Module to assure that they are in range. If those sensors fall out of predetermined ranges a Diagnostic Trouble Code (DTC) will set. If the A/C Heater Module detects on the Auto Headlamps Signal circuit a voltage less than 0.25 volts for the period of two seconds or more. This DTC has a de-maturing time of 20 msec. If the DTCs status changes from active to stored, the DTC will stay in memory for 100 ignition cycles.

OBDII Code B160F - Twilight/Ambient Light Sensor - AutoCodes.com — B160F Code - Twilight/Ambient Light Sensor

What does this mean?

What are the Possible Causes of the DTC B160F?

Faulty Sun Sensor
Sun Sensor harness is open or shorted
Sun Sensor circuit poor electrical connection
Faulty Heating Ventilation and Air Conditioning (HVAC) A/C Heater Module

How to Fix the DTC B160F?

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

B160F-11 TWILIGHT/AMBIENT LIGHT SENSOR INPUT CIRCUIT SHORT TO GROUND
B160F-12 TWILIGHT/AMBIENT LIGHT SENSOR CIRCUIT SHORT TO BATTERY
B160F-92 TWILIGHT/AMBIENT LIGHT SENSOR INPUT PERFORMANCE OR INCORRECT OPERATION

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B160F 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 B160F code?

Need more information on how to fix the B160F code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B160F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B160F Chrysler — Twilight/Ambient Light Sensor
B160F Dodge — Twilight/Ambient Light Sensor
B160F Jeep — Twilight/Ambient Light Sensor
B160F RAM — Twilight/Ambient Light Sensor

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 B160F Code

1. What are the common symptoms of OBDII code B160F (Twilight/Ambient Light Sensor)?

- The common symptoms include malfunctioning automatic headlights, inaccurate ambient light readings, and intermittent or constant illumination of interior lights.

2. What causes OBDII code B160F (Twilight/Ambient Light Sensor) to trigger?

- This code is usually triggered by a faulty twilight/ambient light sensor, damaged wiring or connectors, or a malfunction in the control module.

3. How can I diagnose the issue related to OBDII code B160F (Twilight/Ambient Light Sensor)?

- To diagnose this problem, you can perform a visual inspection of the sensor and its connections, check for any damaged wiring, and use a multimeter to test the sensor's functionality.

4. Can I drive my vehicle with OBDII code B160F (Twilight/Ambient Light Sensor) active?

- While it is generally safe to drive with this code, it is recommended to address the issue promptly to ensure proper functioning of the ambient light sensor and automatic lighting system.

5. How can I repair OBDII code B160F (Twilight/Ambient Light Sensor) myself?

- You can attempt to repair this issue by replacing the faulty twilight/ambient light sensor, repairing damaged wiring or connectors, or resetting the control module to clear the code.

6. Will disconnecting the battery reset OBDII code B160F (Twilight/Ambient Light Sensor)?

- Disconnecting the battery may temporarily clear the code, but it is advisable to address the root cause of the issue to prevent the code from reoccurring.

7. Is it necessary to visit a mechanic for OBDII code B160F (Twilight/Ambient Light Sensor) diagnosis and repair?

- While it is possible to diagnose and repair this issue yourself, seeking professional help from a qualified mechanic may be beneficial for accurate diagnosis and proper repair.

8. Are there any recalls or technical service bulletins related to OBDII code B160F (Twilight/Ambient Light Sensor)?

- It is advisable to check with your vehicle manufacturer or authorized service centers for any recalls or technical service bulletins related to this OBDII code.

9. Can extreme weather conditions affect the performance of the twilight/ambient light sensor triggering OBDII code B160F?

- Yes, extreme weather conditions such as heavy rain, snow, or direct sunlight can sometimes impact the performance of the sensor, leading to the activation of this code.

10. How much does it typically cost to repair OBDII code B160F (Twilight/Ambient Light Sensor) at a professional auto repair shop?

- The cost of repairing this code can vary depending on the extent of the issue, parts required, and labor costs, but it typically ranges from $100 to $300 at a professional auto repair shop.