AutoCodes – Generic – B163C

B163C Code - Front Left Turn Control Circuit High

Quick Answer

The Body Control Module (BCM) receives a communication network message from the Steering Column Control Module (SCCM) requesting turn signal lamp illumination. Common causes include Blown Front Left Park and Turn Signal Bulb, Faulty Front Left Turn Lamp, Front Left Turn Lamp harness is open or shorted. 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: B163C indicates Front Left Turn Control Circuit High.
Common causes: Common causes include Blown Front Left Park and Turn Signal Bulb, Faulty Front Left Turn Lamp, Front Left Turn Lamp harness is open or shorted.
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 7,747

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 May 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B163C Description

The Body Control Module (BCM) receives a communication network message from the Steering Column Control Module (SCCM) requesting turn signal lamp illumination. When this bus message is received, the BCM provides a pulsed voltage output through the front turn signal control circuit. The front turn signal control circuit connects to the dual filament Park and Turn Signal Lamp. The same ground circuit is used for both the Park and Turn Signal filaments in a dual filament lamp.

OBDII Code B163C - Front Left Turn Control Circuit High - AutoCodes.com — B163C Code - Front Left Turn Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B163C?

Blown Front Left Park and Turn Signal Bulb
Faulty Front Left Turn Lamp
Front Left Turn Lamp harness is open or shorted
Front Left Turn Lamp circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC B163C?

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 B163C 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 B163C code?

Need more information on how to fix the B163C code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B163C code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B163C Chrysler — Front Left Turn Control Circuit High
B163C Dodge — Front Left Turn Control Circuit High
B163C Jeep — Front Left Turn Control Circuit High
B163C RAM — Front Left Turn Control Circuit High

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 B163C Code

1. What are the common symptoms of OBDII code B163C (Front Left Turn Control Circuit High)?

The common symptoms of OBDII code B163C include the front left turn signal not functioning properly or staying constantly on.

2. What are the possible causes of OBDII code B163C?

Possible causes of OBDII code B163C include a faulty turn signal bulb, a broken turn signal switch, a short circuit in the wiring, or a problem with the body control module.

3. How can I diagnose the Front Left Turn Control Circuit High error code?

Diagnosing OBDII code B163C involves checking the front left turn signal bulb, inspecting the wiring for any visible damage, testing the turn signal switch, and using a diagnostic scanner to read the trouble codes.

4. Can a DIYer repair OBDII code B163C?

A DIYer can attempt to repair OBDII code B163C by replacing the faulty turn signal bulb, repairing any damaged wiring, or replacing the defective turn signal switch. However, complex electrical issues may require professional assistance.

5. Is it safe to continue driving with OBDII code B163C present?

It is not recommended to continue driving with OBDII code B163C present, as it can affect the visibility of your vehicle to other drivers, leading to potential safety hazards on the road.

6. How much does it typically cost to repair OBDII code B163C?

The cost to repair OBDII code B163C can vary depending on the underlying cause of the issue. Simple fixes like replacing a bulb may cost less, while more complex problems involving the body control module can be more expensive.

7. Can extreme weather conditions trigger OBDII code B163C?

Extreme weather conditions like heavy rain or snow can potentially cause water damage to the turn signal wiring, leading to a short circuit and triggering OBDII code B163C.

8. Will disconnecting the battery reset OBDII code B163C?

Disconnecting the battery may temporarily clear the trouble code, but it will not fix the underlying issue causing OBDII code B163C. It's important to diagnose and repair the root cause of the problem.

9. How long does it typically take to repair OBDII code B163C?

The repair time for OBDII code B163C can vary based on the specific cause of the issue and the expertise of the person performing the repair. Simple fixes may take less than an hour, while more complex repairs could take longer.

10. Can a faulty front left turn control circuit affect other vehicle systems?

A faulty front left turn control circuit can potentially impact other vehicle systems that rely on the same circuit or wiring, such as the hazard lights or other turn signals. Proper diagnosis and repair are essential to prevent further issues.