B273A 2016 GMC Sierra Code - Hill Descent Control Switch
Quick Answer
The Body Control Module (BCM) monitors the signal circuit from the Hill Descent Control Switch. Common causes include Faulty Multifunction Switch Instrument Panel, Multifunction Switch Instrument Panel harness is open or shorted, Multifunction Switch Instrument Panel 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
- B273A 2016 GMC Sierra indicates Hill Descent Control Switch.
- Common causes
- Common causes include Faulty Multifunction Switch Instrument Panel, Multifunction Switch Instrument Panel harness is open or shorted, Multifunction Switch Instrument Panel 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 B273A 2016 GMC Sierra Description
What are the Possible Causes of the DTC B273A 2016 GMC Sierra?
- Faulty Multifunction Switch Instrument Panel
- Multifunction Switch Instrument Panel harness is open or shorted
- Multifunction Switch Instrument Panel circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B273A 2016 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 B273A 2016 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 B273A 2016 GMC Sierra Code
What does OBDII code B273A mean on a 2016 GMC Sierra?
Code B273A indicates an issue with the Hill Descent Control (HDC) switch circuit, which may prevent the system from functioning properly.
What are the common symptoms of code B273A in a 2016 GMC Sierra?
Symptoms include the Hill Descent Control system not engaging, a warning light on the dashboard, or a malfunction message displayed.
What causes code B273A in a 2016 GMC Sierra?
Common causes include a faulty Hill Descent Control switch, damaged wiring or connectors in the switch circuit, or issues with the vehicle's body control module.
How do you diagnose code B273A in a 2016 GMC Sierra?
Start by inspecting the HDC switch for physical damage, check the wiring and connectors for signs of wear or corrosion, and use a scan tool to verify the fault and monitor related circuits.
Can a faulty Hill Descent Control switch trigger code B273A?
Yes, a malfunctioning HDC switch is one of the primary causes of this code.
How can I fix code B273A on a 2016 GMC Sierra?
Repairs may include replacing the Hill Descent Control switch, repairing damaged wiring or connectors, or recalibrating the body control module if needed.
Is it safe to drive with code B273A active in a 2016 GMC Sierra?
While the vehicle may still be drivable, the Hill Descent Control feature will likely not function, which could be problematic during steep descents.
How much does it cost to repair code B273A on a 2016 GMC Sierra?
Repair costs vary based on the issue, ranging from $50-$200 for a switch replacement to higher costs if wiring or module repairs are needed.
Can clearing code B273A with a scan tool fix the issue permanently?
Clearing the code may temporarily remove the warning, but the underlying issue must be addressed to prevent the code from returning.
What tools are needed to troubleshoot code B273A in a 2016 GMC Sierra?
You’ll need a diagnostic scan tool, a multimeter for testing circuits, and basic tools for inspecting and repairing wiring or replacing the switch.
Discuss the causes and fixes for B273A 2016 GMC Sierra OBDII Code
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