AutoCodes – Dodge – B16B5 Dodge

B16B5 Dodge Code - Right 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 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: B16B5 Dodge indicates Right Stop Lamp Control Circuit High.
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 3,612

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 23, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B16B5 Dodge 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 B16B5 Dodge - Right Stop Lamp Control Circuit High - AutoCodes.com — B16B5 Dodge Code - Right Stop Lamp Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B16B5 Dodge?

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 B16B5 Dodge?

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 B16B5 Dodge 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 B16B5 Dodge Code

1. What does the OBDII code B16B5 mean on a Dodge vehicle?

The B16B5 code indicates a high voltage issue in the right stop lamp control circuit, which may affect the functionality of the right brake light.

2. What are the common symptoms of the B16B5 code?

Symptoms include the right brake light not working, the brake light staying on constantly, or a dashboard warning light related to the lighting system.

3. What causes the B16B5 code to appear?

The code is typically caused by a faulty right stop lamp bulb, damaged wiring, a poor ground connection, or a malfunctioning stop lamp control module.

4. Can a blown bulb trigger the B16B5 code?

Yes, a blown right stop lamp bulb can cause this code, as it disrupts the circuit's normal operation.

5. How do I diagnose the B16B5 code?

Start by inspecting the right stop lamp bulb, wiring, and connectors. Use a multimeter to check for high voltage or an open circuit in the wiring.

6. How do I repair the B16B5 code on a Dodge?

Repair involves replacing a blown bulb, fixing damaged wiring, cleaning or tightening connectors, or replacing the control module if necessary.

7. Can I still drive my Dodge with the B16B5 code active?

While the vehicle can still be driven, it is not safe or legal to drive without a functioning brake light, so the issue should be addressed promptly.

8. Does the B16B5 code require professional repair?

While some issues like replacing a bulb or fixing visible wiring damage can be done by a DIYer, more complex electrical diagnoses may require a professional.

9. Can a bad fuse cause the B16B5 code?

A blown or faulty fuse could potentially cause this code if it disrupts the stop lamp circuitâ€™s power supply.

10. Will clearing the code fix the B16B5 issue?

Clearing the code will not fix the underlying issue. The problem must be diagnosed and repaired before clearing the code to ensure it does not return.