AutoCodes – RAM – B162A RAM

B162A RAM Code - Left Low Beam Control Circuit Short

Quick Answer

The Body Control Module (BCM) receives the input from the headlamp switch requesting low beam lamp illumination. 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: B162A RAM indicates Left Low Beam Control Circuit Short.
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 2,150

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 27, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B162A RAM Description

The Body Control Module (BCM) receives the input from the headlamp switch requesting low beam lamp illumination. The BCM provides a voltage output through the low beam driver circuit. The BCM sets the OBDII code when the Left Low Beam Control Circuit is not to factory specifications.

OBDII Code B162A RAM - Left Low Beam Control Circuit Short - AutoCodes.com — B162A RAM Code - Left Low Beam Control Circuit Short

What does this mean?

What are the Possible Causes of the DTC B162A RAM?

Faulty Left Low Beam Bulb
Left Low Beam Bulb harness is open or shorted
Left Low Beam Bulb circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B162A RAM?

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

B162A-11 LEFT LOW BEAM CONTROL CIRCUIT SHORT TO GROUND BASE
B162A-11 LEFT LOW BEAM CONTROL CIRCUIT SHORT TO GROUND PREMIUM
B162A-15 LEFT LOW BEAM CONTROL CIRCUIT SHORT TO BATTERY OR OPEN BASE
B162A-15 LEFT LOW BEAM CONTROL CIRCUIT SHORT TO BATTERY OR OPEN PREMIUM

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B162A RAM 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.

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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 B162A RAM Code

1. What are the common symptoms of OBDII code B162A RAM titled Left Low Beam Control Circuit Short?

- Common symptoms include the left low beam headlight not functioning, flickering, or dimming unexpectedly.

2. What are the possible causes of OBDII code B162A RAM?

- The code may be triggered by a short circuit in the left low beam control circuit, a faulty headlight bulb, damaged wiring, or a defective control module.

3. How can I diagnose the cause of OBDII code B162A RAM?

- A thorough visual inspection of the headlight wiring and components, testing the headlight bulb, and using a multimeter to check for continuity and shorts in the circuit can help diagnose the issue.

4. Are there any simple repairs I can try to fix OBDII code B162A RAM?

- Attempting to replace the left low beam headlight bulb and checking and repairing any damaged wiring or connectors may resolve the issue in some cases.

5. Can weather conditions affect the occurrence of OBDII code B162A RAM?

- Yes, exposure to moisture, extreme temperatures, or road debris can lead to corrosion or damage in the headlight circuit, potentially causing a short and triggering the code.

6. Should I reset the OBDII code B162A RAM after making repairs?

- Yes, it is recommended to clear the code using an OBDII scanner after addressing the underlying issue to see if the problem has been resolved.

7. Is it safe to continue driving with OBDII code B162A RAM?

- It is not advisable to drive with a malfunctioning left low beam headlight, as it can reduce visibility and compromise safety, especially in low-light conditions.

8. Can a professional mechanic help with diagnosing and repairing OBDII code B162A RAM?

- Yes, a qualified mechanic can use specialized tools and expertise to accurately diagnose the issue, perform necessary repairs, and ensure the headlight system is functioning correctly.

9. Are there any preventive measures to avoid OBDII code B162A RAM in the future?

- Regularly inspecting the headlight system, replacing bulbs as needed, and keeping the wiring well-protected can help prevent issues like short circuits triggering this code.

10. Will fixing OBDII code B162A RAM improve my vehicle's overall performance?

- While resolving this specific code may not directly impact performance, ensuring all lighting systems are functioning properly contributes to overall safety and functionality of the vehicle.