B319A 2014 GMC Sierra 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 2014 GMC Sierra 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.
Code B319A 2014 GMC Sierra Description
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.
What are the Possible Causes of the DTC B319A 2014 GMC Sierra?
- 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 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 B319A 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 B319A 2014 GMC Sierra Code
What does the OBDII code B319A mean in a 2014 GMC Sierra?
The code B319A indicates an issue with the right rear window switch circuit, often related to a malfunction or communication problem within the switch or wiring.
What are common symptoms of the B319A code?
Symptoms include the right rear window not operating, intermittent functionality, or the switch not responding to input.
What causes the B319A code in a 2014 GMC Sierra?
Common causes include a faulty window switch, damaged wiring or connectors, or issues with the body control module (BCM).
Can a faulty window motor trigger the B319A code?
No, this code specifically points to the window switch circuit and not the motor itself, though motor failure can cause other related issues.
How can I diagnose the B319A code?
Check the switch functionality, inspect the wiring and connectors for damage, and use a scan tool to verify communication with the BCM.
Can the B319A code be cleared without repairs?
Clearing the code without addressing the underlying issue may temporarily remove it, but the problem will likely return.
Does the B319A code affect other windows in the vehicle?
No, this code specifically relates to the right rear window switch and does not impact other window circuits.
How much does it cost to repair the B319A code?
Repair costs vary depending on whether the issue is with the switch, wiring, or BCM. A new switch may cost $50–$150, while wiring repairs or BCM replacement can be more expensive.
Can I replace the right rear window switch myself?
Yes, if you have basic tools and experience, replacing the window switch is typically straightforward. Ensure you disconnect the battery before starting.
Is the B319A code a serious issue?
While it doesn't typically affect vehicle drivability, it can be inconvenient and may indicate underlying electrical problems needing attention.
Discuss the causes and fixes for B319A 2014 GMC Sierra OBDII Code
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