AutoCodes – Generic – B16B3

B16B3 Code - Right Stop Lamp Control Circuit

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 Right Stop Lamp, Right Stop Lamp harness is open or shorted, Right 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: B16B3 indicates Right Stop Lamp Control Circuit.
Common causes: Common causes include Faulty Right Stop Lamp, Right Stop Lamp harness is open or shorted, Right 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.

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Code Popularity 3,864

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 Jun 19, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B16B3 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 Right Stop Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).

OBDII Code B16B3 - Right Stop Lamp Control Circuit - AutoCodes.com — B16B3 Code - Right Stop Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16B3?

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

How to Fix the DTC B16B3?

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

B16AF-11 RIGHT STOP LAMP CONTROL CIRCUIT SHORT TO GROUND
B16AF-15 RIGHT STOP LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16B3 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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Need Help with the Code?

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Information for Specific Makes

B16B3 Chrysler — Right Stop Lamp Control Circuit
B16B3 Dodge — Right Stop Lamp Control Circuit
B16B3 Jeep — Right Stop Lamp Control Circuit
B16B3 RAM — Right Stop Lamp Control Circuit

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 B16B3 Code

1. What are the common symptoms of OBDII code B16B3 (Right Stop Lamp Control Circuit)?

- The common symptoms include the right stop lamp not functioning properly, the brake lights staying on constantly, or the brake lights not turning on at all.

2. What are the possible causes of OBDII code B16B3?

- The code B16B3 can be triggered by issues such as a faulty brake light switch, damaged wiring or connectors in the right stop lamp circuit, or a defective control module.

3. How can I diagnose the cause of OBDII code B16B3?

- To diagnose the issue, you can start by checking the right stop lamp bulb, inspecting the wiring and connectors for any damage, testing the brake light switch, and scanning the vehicle for any other related trouble codes.

4. Can I still drive my vehicle with OBDII code B16B3?

- It is not recommended to drive your vehicle with OBDII code B16B3 as it can compromise your safety on the road due to malfunctioning brake lights.

5. How can I repair OBDII code B16B3 (Right Stop Lamp Control Circuit) myself?

- Depending on the cause, you may need to replace the right stop lamp bulb, repair or replace damaged wiring or connectors, or replace the faulty brake light switch to resolve the issue.

6. Will resetting the OBDII code B16B3 make it go away permanently?

- Resetting the code may temporarily turn off the warning light, but if the underlying issue causing the code is not fixed, it is likely to reappear.

7. Is it necessary to take my vehicle to a mechanic for OBDII code B16B3 repair?

- While some DIY repairs are possible, it is recommended to consult a qualified mechanic for an accurate diagnosis and proper repair of OBDII code B16B3 to ensure safety and effectiveness.

8. Can a malfunctioning right stop lamp cause other problems in the vehicle?

- Yes, a malfunctioning right stop lamp can lead to safety hazards, affect the vehicle's brake light system, and potentially trigger other related warning lights on the dashboard.

9. How much does it typically cost to repair OBDII code B16B3?

- The repair cost for OBDII code B16B3 can vary depending on the cause of the issue, parts needed for replacement, and labor charges. It is advisable to obtain estimates from local mechanics.

10. Are there any preventive measures to avoid OBDII code B16B3 in the future?

- Regularly checking and maintaining the brake light system, replacing bulbs at recommended intervals, and addressing any issues promptly can help prevent OBDII code B16B3 from occurring.