AutoCodes – Generic – B160B

B160B Code - Panel Dimmer Input Circuit High

Quick Answer

The Instrument Cluster monitors the Panel Dimmer Input. Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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: B160B indicates Panel Dimmer Input Circuit High.
Common causes: Common causes include Faulty Headlamp Switch, Headlamp Switch harness is open or shorted, Headlamp Switch 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 3,724

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B160B Description

The Instrument Cluster monitors the Panel Dimmer Input. The Instrument Cluster sets the OBDII code when the Panel Dimmer Input is not to factory specifications.

OBDII Code B160B - Panel Dimmer Input Circuit High - AutoCodes.com — B160B Code - Panel Dimmer Input Circuit High

What does this mean?

What are the Possible Causes of the DTC B160B?

Faulty Headlamp Switch
Headlamp Switch harness is open or shorted
Headlamp Switch circuit poor electrical connection
Faulty Instrument Cluster

How to Fix the DTC B160B?

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 B160B 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 B160B code?

Need more information on how to fix the B160B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B160B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B160B Chrysler — Panel Dimmer Input Circuit High
B160B Dodge — Panel Dimmer Input Circuit High
B160B Jeep — Panel Dimmer Input Circuit High
B160B RAM — Panel Dimmer Input Circuit High

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 B160B Code

1. What are common symptoms of OBDII code B160B (Panel Dimmer Input Circuit High)?

- Common symptoms include dim or non-functional dashboard lights, flickering instrument panel lights, and issues adjusting the brightness of the dashboard display.

2. What can cause the OBDII code B160B to trigger?

- The code B160B (Panel Dimmer Input Circuit High) can be triggered by a faulty panel dimmer switch, a short circuit in the dimmer switch circuit, or a malfunction in the instrument cluster.

3. How can I diagnose the issue related to code B160B?

- Diagnose the issue by checking the panel dimmer switch for proper functionality, inspecting the wiring for any shorts or damage, and testing the instrument cluster for any faults.

4. Is it safe to drive with the OBDII code B160B active?

- While it may be safe to drive with the code active, it is recommended to address the issue promptly to avoid potential safety hazards caused by dim or non-functional dashboard lights.

5. Can I repair the OBDII code B160B issue myself?

- Depending on your experience and access to tools, you may be able to repair the issue yourself by replacing the faulty panel dimmer switch, repairing any damaged wiring, or addressing any faults in the instrument cluster.

6. Will resetting the OBDII code B160B make the issue go away?

- Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the code to trigger. Proper diagnosis and repair are necessary to resolve the problem.

7. Are there any troubleshooting tips for addressing code B160B?

- Troubleshooting tips include checking the fuse related to the panel dimmer circuit, ensuring the dimmer switch is properly connected, and inspecting the wiring harness for any visible issues.

8. How much does it typically cost to repair the OBDII code B160B issue?

- The cost of repairing the code B160B issue can vary depending on the underlying cause, but it may range from $100 to $300 for parts and labor at a repair shop.

9. Can a low battery voltage trigger the OBDII code B160B?

- Yes, a low battery voltage can sometimes trigger the code B160B due to insufficient power reaching the panel dimmer switch and instrument cluster, causing malfunctions.

10. Is it necessary to have the OBDII code B160B repaired immediately?

- While immediate repair may not be crucial for vehicle operation, addressing the issue promptly can prevent further electrical problems and ensure proper functionality of the dashboard lights.