AutoCodes – Chevrolet – B273A 2016 Chevrolet Silverado

B273A 2016 Chevrolet Silverado 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 Chevrolet Silverado 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 210

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 30, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B273A 2016 Chevrolet Silverado Description

The Body Control Module (BCM) monitors the signal circuit from the Hill Descent Control Switch. The hill descent switch is a momentary switch that is normally open. When the hill descent control switch is pressed once, the body control module will request the electronic brake control module via serial data to disable or enable the hill descent control. When activated, the switch grounds the hill descent control system signal circuit. The electronic brake control module then enables or disables the hill descent control system. The electronic brake control module will request the instrument cluster via serial data to turn the hill descent indicator ON or OFF to notify the driver.

OBDII Code B273A 2016 Chevrolet Silverado - Hill Descent Control Switch - AutoCodes.com — B273A 2016 Chevrolet Silverado Code - Hill Descent Control Switch

What does this mean?

What are the Possible Causes of the DTC B273A 2016 Chevrolet Silverado?

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 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 B273A 2016 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 B273A 2016 Chevrolet Silverado code?

Need more information on how to fix the B273A 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B273A 2016 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B273A 2016 Chevrolet Silverado Code

1. What does OBDII code B273A mean on a 2016 Chevrolet Silverado related to the Hill Descent Control Switch?

- OBDII code B273A indicates a malfunction with the Hill Descent Control Switch on the 2016 Chevrolet Silverado.

2. What are the common symptoms of a Hill Descent Control Switch issue triggering code B273A on a 2016 Chevrolet Silverado?

- Common symptoms include the Hill Descent Control system not functioning properly, warning lights illuminated on the dashboard, and potential loss of control on steep descents.

3. What are some possible causes of OBDII code B273A on a 2016 Chevrolet Silverado?

- The code B273A can be triggered by a faulty Hill Descent Control Switch, wiring issues, sensor malfunctions, or a problem with the control module.

4. How can I diagnose the issue causing OBDII code B273A on my 2016 Chevrolet Silverado related to the Hill Descent Control Switch?

- Diagnosis involves using a diagnostic scanner to read the code, checking the wiring and connections to the Hill Descent Control Switch, and testing the switch itself for proper functionality.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code B273A related to the Hill Descent Control Switch?

- It is not recommended to drive the vehicle with this code present, as it can affect the safe operation of the Hill Descent Control system.

6. What are the repair options for fixing OBDII code B273A on a 2016 Chevrolet Silverado's Hill Descent Control Switch?

- Repair options include replacing the faulty Hill Descent Control Switch, addressing any wiring or connection issues, or recalibrating the system as needed.

7. Is it possible to reset OBDII code B273A on a 2016 Chevrolet Silverado without fixing the underlying issue with the Hill Descent Control Switch?

- Resetting the code without addressing the root cause is not recommended, as the issue may persist and potentially lead to unsafe driving conditions.

8. How much does it typically cost to repair OBDII code B273A on a 2016 Chevrolet Silverado's Hill Descent Control Switch?

- The cost of repair can vary depending on the specific issue, but it may involve replacing the Hill Descent Control Switch, which can range from $100 to $300 including parts and labor.

9. Can a DIY enthusiast replace the Hill Descent Control Switch to resolve OBDII code B273A on a 2016 Chevrolet Silverado?

- While it is possible for a skilled DIY enthusiast to replace the switch, it is recommended to consult a professional mechanic for proper diagnosis and repair of the issue.

10. How can I prevent OBDII code B273A related to the Hill Descent Control Switch from occurring on my 2016 Chevrolet Silverado in the future?

- Regular maintenance checks, ensuring proper wiring connections, and addressing any warning lights promptly can help prevent issues with the Hill Descent Control system and related codes.