AutoCodes – Generic – B16F7

B16F7 Code - Front Left Fog Lamp Control Circuit

Quick Answer

The Body Control Module (BCM) receives the input from the headlamp switch requesting fog lamp illumination. Common causes include Faulty Front Left Fog Lamp, Front Left Fog Lamp harness is open or shorted, Front Left Fog 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: B16F7 indicates Front Left Fog Lamp Control Circuit.
Common causes: Common causes include Faulty Front Left Fog Lamp, Front Left Fog Lamp harness is open or shorted, Front Left Fog 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 4,974

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 B16F7 Description

The Body Control Module (BCM) receives the input from the headlamp switch requesting fog lamp illumination. The BCM provides a pulse width modulated (PWM) voltage output through the fog lamp driver circuit, which connects to the Fog Lamp. A ground path for the lamps is present through the harness to the body sheet metal. For additional information on the Fog Lamp operation. When the Body Control Module (BCM) detects a low condition on the Left Front Fog Lamp Driver circuit sets the Diagnostic Trouble Code (DTC).

OBDII Code B16F7 - Front Left Fog Lamp Control Circuit - AutoCodes.com — B16F7 Code - Front Left Fog Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC B16F7?

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

How to Fix the DTC B16F7?

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

B16F7-11 FRONT LEFT FOG LAMP CONTROL CIRCUIT SHORT TO GROUND
B16F7-15 FRONT LEFT FOG LAMP CONTROL CIRCUIT SHORT TO BATTERY OR OPEN

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B16F7 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

B16F7 Chrysler — Front Left Fog Lamp Control Circuit
B16F7 Dodge — Front Left Fog Lamp Control Circuit
B16F7 Jeep — Front Left Fog Lamp Control Circuit
B16F7 RAM — Front Left Fog 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.