AutoCodes – Generic – B162B

B162B Code - Left Low Beam Control Circuit Low

Quick Answer

The Front Totally Integrated Power Module (TIPM) monitors the Left Low Beam. Common causes include Faulty Left Low Beam Bulb, Left Low Beam Bulb harness is open or shorted, Left Low Beam Bulb 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: B162B indicates Left Low Beam Control Circuit Low.
Common causes: Common causes include Faulty Left Low Beam Bulb, Left Low Beam Bulb harness is open or shorted, Left Low Beam Bulb 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 4,516

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 24, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B162B Description

The Front Totally Integrated Power Module (TIPM) monitors the Left Low Beam. The TIPM sets the OBDII code when the Left Low Beam is not to factory specifications.

OBDII Code B162B - Left Low Beam Control Circuit Low - AutoCodes.com — B162B Code - Left Low Beam Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC B162B?

Faulty Left Low Beam Bulb
Left Low Beam Bulb harness is open or shorted
Left Low Beam Bulb circuit poor electrical connection
Faulty Front Totally Integrated Power Module (TIPM)

How to Fix the DTC B162B?

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 B162B 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 B162B code?

Need more information on how to fix the B162B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B162B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B162B Chrysler — Left Low Beam Control Circuit Low
B162B Dodge — Left Low Beam Control Circuit Low
B162B Jeep — Left Low Beam Control Circuit Low
B162B RAM — Left Low Beam Control Circuit Low

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 B162B Code

1. What does the OBDII code B162B mean?

B162B indicates that the left low beam control circuit is experiencing low voltage or a malfunction, preventing proper operation of the left low beam headlight.

2. What are the common symptoms of the B162B code?

Symptoms include a non-functioning left low beam headlight, possible flickering of the left low beam, and the illumination of a warning light on the dashboard.

3. What causes the B162B code to appear?

Common causes include a faulty headlight bulb, damaged wiring or connectors in the left low beam circuit, a malfunctioning headlight control module, or corrosion in the electrical components.

4. Can a blown fuse trigger the B162B code?

Yes, a blown fuse in the headlight circuit can cause low voltage in the left low beam control circuit, leading to the B162B code.

5. How do I diagnose the B162B code?

Inspect the left low beam bulb, check for damaged or corroded wiring and connectors, verify the fuse and relay for the headlight circuit, and test the headlight control module for proper operation.

6. Can I drive safely with the B162B code?

While the vehicle may still be drivable, reduced visibility due to a malfunctioning left low beam can compromise safety, especially at night or in adverse weather conditions.

7. How do I fix the B162B code?

Repair or replace the damaged wiring, connectors, or bulb, check and replace the fuse or relay if necessary, and replace the headlight control module if itâ€™s faulty.

8. How much does it cost to fix the B162B code?

Repair costs vary depending on the issue, but replacing a headlight bulb may cost $20-$50, while module replacement or wiring repairs could range from $100-$500.

9. Can a faulty headlight bulb alone cause the B162B code?

Yes, a defective or burned-out left low beam bulb can cause the circuit to register low voltage, triggering the B162B code.

10. Is professional repair necessary for the B162B code?

While a skilled DIYer can handle simple fixes like replacing a bulb or fuse, diagnosing wiring issues or module failures may require professional expertise and tools.