AutoCodes – RAM – B16B1 RAM

B16B1 RAM Code - Left Stop Lamp Control Circuit High

Quick Answer

The Body Control Module (BCM) receives a hardwired brake signal from the Anti-lock Brake System (ABS) module indicating that the Brake Pedal is applied. Common causes include Faulty Left Stop Lamp, Left Stop Lamp harness is open or shorted, Left Stop Lamp 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
B16B1 RAM indicates Left Stop Lamp Control Circuit High.
Common causes
Common causes include Faulty Left Stop Lamp, Left Stop Lamp harness is open or shorted, Left Stop Lamp 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 846
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 19, 2019
πŸ’¬ Need more help? Ask Coddy for instant answers β€” it's free!

Code B16B1 RAM Description

The Body Control Module (BCM) receives a hardwired brake signal from the Anti-lock Brake System (ABS) module indicating that the Brake Pedal is applied. When this signal is received, the BCM provides a voltage output through the rear stop signal control circuit. For additional information on the Brake Lamp operation. When the Body Control Module (BCM) detects a low or high condition on the Left Stop Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).
OBDII Code B16B1 RAM - Left Stop Lamp Control Circuit High - AutoCodes.com
B16B1 RAM Code - Left Stop Lamp Control Circuit High

What are the Possible Causes of the DTC B16B1 RAM?

  • Faulty Left Stop Lamp
  • Left Stop Lamp harness is open or shorted
  • Left Stop Lamp circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B16B1 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16B1 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.

Need more information about the B16B1 RAM code?

Need more information on how to fix the B16B1 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B16B1 RAM 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 B16B1 RAM Code

1. What are the common symptoms of OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

When this code is triggered, you may notice that the left stop lamp on your vehicle stays illuminated constantly, even when the brakes are not being applied.

2. What are the possible causes of OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

Common causes of this code include a faulty stop lamp switch, a short circuit in the wiring, or a problem with the body control module.

3. How can I diagnose the issue causing OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

To diagnose this issue, you can start by checking the wiring and connections to the left stop lamp, testing the stop lamp switch, and scanning the body control module for any faults.

4. Can I still drive my vehicle with OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

It is generally safe to drive your vehicle with this code, but you should address the issue promptly to ensure the proper functioning of your brake lights.

5. How can I repair OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

Repairing this code typically involves replacing a faulty stop lamp switch, repairing any short circuits in the wiring, or reprogramming the body control module if necessary.

6. Is it possible for a loose connection to cause OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

Yes, a loose or corroded connection in the left stop lamp circuit can also trigger this code, so it's important to check all connections during diagnosis.

7. Can extreme weather conditions contribute to triggering OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

Extreme weather conditions such as heavy rain or snow can potentially cause moisture to enter the stop lamp circuit, leading to a short circuit and triggering this code.

8. Will resetting the OBDII system clear OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High"?

While resetting the OBDII system may temporarily clear the code, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How can I prevent OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High" from happening again in the future?

Regularly inspecting the stop lamp circuit for any signs of wear or damage, ensuring proper connections, and using high-quality replacement parts can help prevent this code from reoccurring.

10. Can OBDII code B16B1 RAM "Left Stop Lamp Control Circuit High" affect the overall safety of my vehicle?

Yes, this code can affect the safety of your vehicle as it may lead to a malfunctioning brake light, which can reduce visibility to other drivers and increase the risk of accidents.

Discuss the causes and fixes for B16B1 RAM OBDII Code

Code B16B1 RAM comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play