AutoCodes – Generic – B16B7

B16B7 Code - Center 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 Center Stop Lamp, Center Stop Lamp harness is open or shorted, Center 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: B16B7 indicates Center Stop Lamp Control Circuit.
Common causes: Common causes include Faulty Center Stop Lamp, Center Stop Lamp harness is open or shorted, Center 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 16,631

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 23, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B16B7 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 Center High Mounted Stop Lamp (CHMSL) control circuit. For additional information on the Brake Lamp operation. When the Body Control Module (BCM) detects a low condition on the CHMSL Driver circuit and sets the Diagnostic Trouble Code (DTC).

OBDII Code B16B7 - Center Stop Lamp Control Circuit - AutoCodes.com — B16B7 Code - Center Stop Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16B7?

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

How to Fix the DTC B16B7?

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

B16B7-11 CENTER STOP LAMP CONTROL CIRCUIT SHORT TO GROUND
B16B7-15 CENTER STOP LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16B7 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 B16B7 code?

Need more information on how to fix the B16B7 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B16B7 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B16B7 Chrysler — Center Stop Lamp Control Circuit
B16B7 Dodge — Center Stop Lamp Control Circuit
B16B7 Jeep — Center Stop Lamp Control Circuit
B16B7 RAM — Center 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 B16B7 Code

1. What are the common symptoms of OBDII code B16B7 (Center Stop Lamp Control Circuit)?

- The common symptoms include the center brake light not working, the brake light staying on constantly, or the brake light not illuminating when the brake pedal is pressed.

2. What are the possible causes of OBDII code B16B7?

- The code B16B7 can be caused by issues such as a faulty center high mount stop lamp, a damaged wiring harness, a faulty brake light switch, or a problem with the body control module.

3. How can I diagnose the OBDII code B16B7?

- To diagnose the code B16B7, you can start by visually inspecting the center high mount stop lamp and the wiring harness. You can also use a multimeter to test the continuity of the wiring and check the brake light switch for proper operation.

4. What are some repair tips for fixing OBDII code B16B7?

- Repair tips for OBDII code B16B7 may include replacing the faulty center high mount stop lamp, repairing or replacing damaged wiring harness, adjusting or replacing the brake light switch, or reprogramming the body control module if necessary.

5. Can I still drive my vehicle with OBDII code B16B7 present?

- It is generally safe to drive the vehicle with the OBDII code B16B7, but it is recommended to address the issue promptly to ensure proper operation of the center stop lamp for safety reasons.

6. How much does it cost to repair OBDII code B16B7?

- The cost of repairing OBDII code B16B7 can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to repair the problem yourself or take it to a professional mechanic.

7. Is OBDII code B16B7 a serious issue?

- OBDII code B16B7 is not typically considered a serious issue in terms of vehicle drivability, but it should be addressed to ensure proper brake light functionality and overall safety while driving.

8. Can a DIY enthusiast fix OBDII code B16B7?

- Depending on the DIY enthusiast's knowledge and experience with automotive electrical systems, it is possible to fix OBDII code B16B7 by following diagnostic procedures and repair tips, but professional assistance may be necessary in some cases.

9. Will OBDII code B16B7 cause my vehicle to fail an emissions test?

- OBDII code B16B7 is related to the center stop lamp control circuit and is not directly related to emissions, so it should not cause your vehicle to fail an emissions test.

10. How often does OBDII code B16B7 occur in vehicles?

- OBDII code B16B7 (Center Stop Lamp Control Circuit) is a relatively common issue in vehicles, especially in older models or vehicles with high mileage due to wear and tear on electrical components.