AutoCodes – Jeep – B16C3 Jeep

B16C3 Jeep Code - Front Right Sidemarker Lamp Control Circuit

Quick Answer

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. Common causes include Faulty Front Right Sidemarker Lamp, Front Right Sidemarker Lamp harness is open or shorted, Front Right Sidemarker 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: B16C3 Jeep indicates Front Right Sidemarker Lamp Control Circuit.
Common causes: Common causes include Faulty Front Right Sidemarker Lamp, Front Right Sidemarker Lamp harness is open or shorted, Front Right Sidemarker 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 1,843

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 B16C3 Jeep Description

The Body Control Module (BCM) receives the input from the headlamp switch requesting park lamp illumination. The BCM provides a Pulse Width Modulated (PWM) voltage output through the front right side marker control circuit. The control circuit connects to the Park Lamps. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Park Lamps operation. When the Body Control Module (BCM) detects a high condition on the (L78) Right Front Side Marker Lamp Driver circuit and sets the Diagnostic Trouble Code (DTC).

OBDII Code B16C3 Jeep - Front Right Sidemarker Lamp Control Circuit - AutoCodes.com — B16C3 Jeep Code - Front Right Sidemarker Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16C3 Jeep?

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

How to Fix the DTC B16C3 Jeep?

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

B16C3-11 FRONT RIGHT SIDEMARKER LAMP CONTROL CIRCUIT SHORT TO GROUND
B16C3-15 FRONT RIGHT SIDEMARKER LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16C3 Jeep 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 B16C3 Jeep code?

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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 B16C3 Jeep Code

What does the OBDII code B16C3 mean on a Jeep?

The B16C3 code indicates an issue with the Front Right Sidemarker Lamp Control Circuit, typically involving wiring, connectors, or the lamp itself.

What are the common symptoms of the B16C3 code?

Common symptoms include the front right sidemarker lamp not functioning, intermittent flickering, or dashboard warnings related to exterior lighting.

What causes the B16C3 code to appear?

The code is usually caused by a faulty sidemarker lamp, damaged wiring, corroded connectors, or issues with the vehicle's lighting control module.

Can a loose connection trigger the B16C3 code?

Yes, a loose or corroded connector in the sidemarker lamp circuit can cause the code to appear.

How can I diagnose the B16C3 code?

Start by visually inspecting the front right sidemarker lamp, its wiring, and connectors for damage or corrosion. Use a multimeter to test for proper voltage and continuity in the circuit.

Is it safe to drive with the B16C3 code active?

Yes, it's usually safe to drive, but the non-functioning sidemarker lamp reduces visibility and safety, especially at night or in poor weather.

What are common fixes for the B16C3 code?

Common fixes include replacing the sidemarker lamp, repairing or replacing damaged wiring, cleaning corroded connectors, or addressing issues in the lighting control module.

How much does it cost to repair the B16C3 code?

Repair costs vary but typically range from $50 to $150 for a simple lamp replacement or wiring repair. More complex issues involving the control module may cost more.

Can the B16C3 code clear itself?

The code may clear temporarily if the issue is intermittent, but it will return if the underlying problem is not resolved.

Do I need professional help to fix the B16C3 code?

While basic repairs like lamp replacement or cleaning connectors can be done at home, complex wiring issues or control module problems may require professional assistance.