AutoCodesChevrolet – B356A 2015 Chevrolet Silverado

B356A 2015 Chevrolet Silverado Code - Vehicle Direction Warning Switch Circuit

Quick Answer

The lane departure warning system is controlled by the Active Safety Control Module. Common causes include Faulty Vehicle Direction Warning Switch, Vehicle Direction Warning Switch harness is open or shorted, Vehicle Direction Warning Switch 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
B356A 2015 Chevrolet Silverado indicates Vehicle Direction Warning Switch Circuit.
Common causes
Common causes include Faulty Vehicle Direction Warning Switch, Vehicle Direction Warning Switch harness is open or shorted, Vehicle Direction Warning Switch 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 194
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 13, 2023
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Code B356A 2015 Chevrolet Silverado Description

The lane departure warning system is controlled by the Active Safety Control Module. Lane departure warning is enabled and disabled through a switch located in the instrument panel. When enabled, the Active Safety Control Module will illuminate the indicator located in the switch.
When the Frontview Camera module is operating and can detect the lane markings, the Frontview Camera module will request via serial data communications that the instrument panel cluster illuminate the green lane departure ready–to–assist indicator. If the Frontview Camera module detects that the vehicle has crossed a lane marking without the turn signal being used, the module will request that the instrument cluster flash the yellow lane departure warning indicator. An audible warning may also sound three times, or the haptic seat (if equipped) may pulse when the yellow Instrument Cluster indicator is flashing. The driver can select between audible or haptic alerts in the vehicle personalization menu. The Diagnostic Trouble Code (DTC) will be set when the Active Safety Control Module has detected a short to ground, short to voltage, or an open/high resistance for more than 10 s.
OBDII Code B356A 2015 Chevrolet Silverado - Vehicle Direction Warning Switch Circuit - AutoCodes.com
B356A 2015 Chevrolet Silverado Code - Vehicle Direction Warning Switch Circuit

What are the Possible Causes of the DTC B356A 2015 Chevrolet Silverado?

  • Faulty Vehicle Direction Warning Switch
  • Vehicle Direction Warning Switch harness is open or shorted
  • Vehicle Direction Warning Switch circuit poor electrical connection
  • Faulty Frontview Camera Module
  • Faulty Active Safety Control Module

How to Fix the DTC B356A 2015 Chevrolet Silverado?

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 B356A 2015 Chevrolet Silverado 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 B356A 2015 Chevrolet Silverado Code

1. What does the OBDII code B356A mean on a 2015 Chevrolet Silverado?

The B356A code refers to a fault in the Vehicle Direction Warning Switch Circuit, indicating an issue with the system responsible for directional warning signals.

2. What are the common symptoms of the B356A code?

Typical symptoms include malfunctioning directional warning lights, failure of lane departure warning systems, or a warning light appearing on the dashboard.

3. What causes the B356A code to appear?

Common causes include a faulty directional warning switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.

4. How can I diagnose the B356A code on my Silverado?

Diagnosis involves using a scan tool to confirm the code, visually inspecting the wiring and connectors for damage, and testing the directional warning switch for proper operation.

5. Can I still drive my 2015 Chevrolet Silverado with a B356A code?

While the vehicle may still be drivable, the directional warning system may not function correctly, potentially compromising safety features like lane departure warnings.

6. How do I fix the B356A code on my Silverado?

Repairs may include replacing the directional warning switch, repairing or replacing damaged wiring, or reprogramming or replacing the control module if necessary.

7. How much does it cost to repair a B356A code?

The cost varies depending on the specific issue but can range from $100 for simple wiring repairs to $400 or more for replacing the directional warning switch or control module.

8. Can I reset the B356A code without fixing the problem?

The code can be cleared temporarily with a scan tool, but it will likely return if the underlying issue is not resolved.

9. Is the B356A code covered under warranty for a 2015 Chevrolet Silverado?

It depends on your warranty coverage and the mileage of your vehicle. Check with your dealership or warranty provider for details.

10. What tools are needed to troubleshoot the B356A code?

You'll need an OBDII scan tool, a multimeter for electrical testing, and possibly a service manual for wiring diagrams and specifications.

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