B356A 2017 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 2017 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.
Code B356A 2017 Chevrolet Silverado 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 2017 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 2017 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 2017 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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Frequently Asked Questions about B356A 2017 Chevrolet Silverado Code
1. What does the OBDII code B356A mean in a 2017 Chevrolet Silverado?
The code B356A indicates an issue with the Vehicle Direction Warning Switch Circuit, which is related to the lane departure or blind spot monitoring system.
2. What are the symptoms of a B356A code in a 2017 Chevrolet Silverado?
Common symptoms include malfunctioning lane departure warning, blind spot monitoring system errors, or warning lights illuminated on the dashboard.
3. What causes the B356A code in a Chevrolet Silverado?
This code can be caused by a faulty direction warning switch, damaged wiring or connectors in the circuit, or a malfunctioning control module.
4. How can I diagnose a B356A code in my 2017 Silverado?
Use a diagnostic scanner to confirm the code, then inspect the wiring, connectors, and the warning switch for visible damage or wear. Testing the circuit with a multimeter may also be necessary.
5. Can a blown fuse trigger the B356A code?
Yes, a blown fuse in the circuit associated with the direction warning switch can cause this code to appear.
6. Is it safe to drive with a B356A code in my Chevrolet Silverado?
While the vehicle may still be drivable, the safety systems like lane departure warning or blind spot monitoring may not function properly, increasing the risk of accidents.
7. How do I fix the B356A code in a 2017 Chevrolet Silverado?
Repairs may include replacing the faulty direction warning switch, repairing damaged wiring, or addressing any issues with the associated control module.
8. How much does it cost to repair a B356A code in a Chevrolet Silverado?
Repair costs can vary but typically range from $100 to $300, depending on whether the issue is with the switch, wiring, or control module.
9. Can I clear the B356A code without fixing the problem?
Clearing the code without addressing the underlying issue may temporarily turn off the warning light, but the code will likely return as the problem persists.
10. Do I need a professional mechanic to fix the B356A code?
If you're comfortable with basic electrical diagnostics and repairs, you may be able to fix it yourself. However, a professional mechanic is recommended for more complex issues or module-related repairs.
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