AutoCodesChevrolet – B319A 2015 Chevrolet Silverado

B319A 2015 Chevrolet Silverado Code - Right Rear Window Switch

Quick Answer

The driver and passenger window motors supply 12 V signal circuits to their respective window switches, when a window switch has been activated, a switch closes providing a ground to the appropriate signal circuit causing the voltage to drop to 0 V. Common causes include Faulty Right Rear Window Switch, Right Rear Window Switch harness is open or shorted, Right Rear Window 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
B319A 2015 Chevrolet Silverado indicates Right Rear Window Switch.
Common causes
Common causes include Faulty Right Rear Window Switch, Right Rear Window Switch harness is open or shorted, Right Rear Window 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 187
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 11, 2023
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Code B319A 2015 Chevrolet Silverado Description

The driver and passenger window motors supply 12 V signal circuits to their respective window switches, when a window switch has been activated, a switch closes providing a ground to the appropriate signal circuit causing the voltage to drop to 0 V. The window motor will detect the voltage drop in the signal circuit and will command the window to move in the desired direction.
The driver window master control switch also contains control switches for the passenger, left rear and right rear window functions. When a window switch is pressed, a serial data message is sent to the Body Control Module (BCM). The BCM examines the request and checks for messages from other power window motors that may prohibit window movement. If no prohibitive messages have been received, the BCM will send a serial data message to the passenger window motor or to the appropriate rear window switch which will perform the command as requested.
OBDII Code B319A 2015 Chevrolet Silverado - Right Rear Window Switch - AutoCodes.com
B319A 2015 Chevrolet Silverado Code - Right Rear Window Switch

What are the Possible Causes of the DTC B319A 2015 Chevrolet Silverado?

  • Faulty Right Rear Window Switch
  • Right Rear Window Switch harness is open or shorted
  • Right Rear Window Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B319A 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 B319A 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.

Need more information about the B319A 2015 Chevrolet Silverado code?

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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 B319A 2015 Chevrolet Silverado Code

1. What does the OBDII code B319A mean on a 2015 Chevrolet Silverado?

The code B319A indicates an issue with the Right Rear Window Switch circuit, typically involving a malfunction or failure in its operation.

2. What are common symptoms of code B319A on a 2015 Chevrolet Silverado?

Symptoms include the right rear window not responding to switch inputs, intermittent operation, or the window being stuck in one position.

3. What causes code B319A to appear on a 2015 Chevrolet Silverado?

Common causes include a faulty right rear window switch, damaged wiring or connectors in the circuit, or a problem with the Body Control Module (BCM).

4. Can I still drive my 2015 Chevrolet Silverado with code B319A?

Yes, the truck is still drivable, but the right rear window may not function properly, which could be inconvenient or impact ventilation.

5. How do I diagnose the B319A code on my Silverado?

Diagnose the issue by inspecting the right rear window switch, checking for damaged or loose wiring, and using a diagnostic scan tool to confirm the fault.

6. How do I fix the B319A code on a 2015 Chevrolet Silverado?

Repairs may involve replacing the right rear window switch, repairing damaged wiring, or reprogramming the BCM if necessary.

7. How much does it cost to fix code B319A on a 2015 Chevrolet Silverado?

The cost varies depending on the issue, but replacing the window switch generally costs $50-$150 for parts, plus labor if done professionally.

8. Can a faulty right rear window switch cause other issues in my Silverado?

While unlikely, a persistent fault in the circuit could potentially strain the BCM or cause other electrical anomalies if left unaddressed.

9. Does the B319A code always mean the switch is bad?

No, the issue could also be due to damaged wiring, a poor connection, or a software issue in the BCM.

10. Do I need a professional mechanic to repair code B319A?

Not necessarily; if you’re comfortable with basic electrical repairs, you can inspect and replace the switch or wiring yourself. However, BCM issues may require professional expertise.

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