AutoCodes – Generic – B16C3

B16C3 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 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 6,140

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

What does this mean?

What are the Possible Causes of the DTC B16C3?

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?

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 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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Information for Specific Makes

B16C3 Chrysler — Front Right Sidemarker Lamp Control Circuit
B16C3 Dodge — Front Right Sidemarker Lamp Control Circuit
B16C3 Jeep — Front Right Sidemarker Lamp Control Circuit
B16C3 RAM — Front Right Sidemarker 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.