B356A 2014 GMC Sierra 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 2014 GMC Sierra 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.
Code B356A 2014 GMC Sierra Description
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.
What are the Possible Causes of the DTC B356A 2014 GMC Sierra?
- 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 2014 GMC Sierra?
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 2014 GMC Sierra 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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Frequently Asked Questions about B356A 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code B356A in a 2014 GMC Sierra?
- Common symptoms include malfunctioning turn signals, hazard lights, or other vehicle direction warning functions.
2. What does the OBDII code B356A for the Vehicle Direction Warning Switch Circuit indicate in a 2014 GMC Sierra?
- This code indicates a problem with the circuit related to the vehicle's direction warning switch, potentially affecting the operation of turn signals and other related systems.
3. What are possible causes of OBDII code B356A in a 2014 GMC Sierra?
- Causes may include a faulty direction warning switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.
4. How can I diagnose the issue related to OBDII code B356A in my 2014 GMC Sierra?
- Diagnosing the issue involves checking the direction warning switch, inspecting the wiring and connectors for damage, and using a diagnostic tool to scan for specific faults.
5. Can I repair OBDII code B356A in my 2014 GMC Sierra on my own?
- Depending on the cause, you may be able to repair the issue on your own by replacing the faulty direction warning switch, repairing damaged wiring, or addressing any other identified problems.
6. Is it safe to continue driving my 2014 GMC Sierra with OBDII code B356A present?
- It is not recommended to continue driving the vehicle with this code present, as it may affect the proper functioning of critical safety systems like turn signals.
7. How much does it typically cost to repair OBDII code B356A in a 2014 GMC Sierra?
- The cost of repairing this code can vary based on the specific cause, but it may involve parts replacement, wiring repairs, or labor costs for diagnosis and repair.
8. Can a mechanic clear the OBDII code B356A after repairing the issue in my 2014 GMC Sierra?
- Yes, once the underlying problem is fixed, a mechanic can clear the code using a diagnostic tool to reset the vehicle's system.
9. Are there any preventive measures to avoid OBDII code B356A in a 2014 GMC Sierra?
- Regular maintenance checks on the vehicle's electrical system, including the direction warning switch circuit, can help prevent issues that may trigger this code.
10. Will OBDII code B356A cause my 2014 GMC Sierra to fail an emissions test?
- Depending on local regulations, a persistent issue related to this code may cause your vehicle to fail an emissions test, as it indicates a malfunction in an essential system.
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