AutoCodes – Chevrolet – B263A 2017 Chevrolet Silverado

B263A 2017 Chevrolet Silverado Code - Exterior Illumination Lamp Circuit

Quick Answer

The Body Control Module (BCM) supplies battery voltage to each exterior door handle LED backlighting, the LED lighting located under each outside rearview mirror for approach lighting, and both running board steps courtesy lamps when equipped. Common causes include Faulty Exterior Illumination Lamp, Exterior Illumination Lamp harness is open or shorted, Exterior Illumination Lamp 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
B263A 2017 Chevrolet Silverado indicates Exterior Illumination Lamp Circuit.
Common causes
Common causes include Faulty Exterior Illumination Lamp, Exterior Illumination Lamp harness is open or shorted, Exterior Illumination Lamp 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 183
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 29, 2023
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Code B263A 2017 Chevrolet Silverado Description

The Body Control Module (BCM) supplies battery voltage to each exterior door handle LED backlighting, the LED lighting located under each outside rearview mirror for approach lighting, and both running board steps courtesy lamps when equipped. When the keyless entry transmitter is operated to the lock/unlock functions the LED lighting located under each outside rearview mirror, exterior door handles, and both running board steps are commanded ON for approach lighting. The Diagnostic Trouble Code (DTC) will be set when the BCM detects a problem in the exterior courtesy lamps control circuit.
OBDII Code B263A 2017 Chevrolet Silverado - Exterior Illumination Lamp Circuit - AutoCodes.com
B263A 2017 Chevrolet Silverado Code - Exterior Illumination Lamp Circuit

What are the Possible Causes of the DTC B263A 2017 Chevrolet Silverado?

  • Faulty Exterior Illumination Lamp
  • Exterior Illumination Lamp harness is open or shorted
  • Exterior Illumination Lamp circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B263A 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B263A 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.

Need more information about the B263A 2017 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 B263A 2017 Chevrolet Silverado Code

1. What does OBDII code B263A on a 2017 Chevrolet Silverado indicate?

The code B263A refers to a fault in the Exterior Illumination Lamp Circuit of a 2017 Chevrolet Silverado.

2. What are the common symptoms of OBDII code B263A in a 2017 Chevrolet Silverado?

Common symptoms include malfunctioning exterior lights, such as the headlights, tail lights, or turn signals not working properly.

3. What are the possible causes of OBDII code B263A on a 2017 Chevrolet Silverado?

Potential causes include issues with the exterior lamp wiring, faulty lamp connectors, or a defective lighting control module.

4. How can I diagnose the OBDII code B263A on my 2017 Chevrolet Silverado?

You can diagnose the code by visually inspecting the exterior lamp wiring, checking the lamp connectors for corrosion or damage, and using a multimeter to test for continuity.

5. How should I repair OBDII code B263A on my 2017 Chevrolet Silverado?

Repair methods may include repairing or replacing damaged wiring, cleaning or replacing faulty lamp connectors, or replacing the lighting control module if necessary.

6. Can I drive my 2017 Chevrolet Silverado with OBDII code B263A?

It is not recommended to drive your vehicle with malfunctioning exterior lights as it can compromise your safety and the safety of others on the road.

7. Is it safe to reset the OBDII code B263A on my 2017 Chevrolet Silverado without fixing the issue?

Resetting the code without addressing the underlying problem will not solve the issue and the code is likely to reappear once the problem persists.

8. How much does it typically cost to repair OBDII code B263A on a 2017 Chevrolet Silverado?

The cost of repair can vary depending on the specific issue causing the code, but it may range from a simple wiring repair cost to the replacement of a lighting control module.

9. Can extreme weather conditions cause OBDII code B263A to trigger in a 2017 Chevrolet Silverado?

Yes, extreme weather conditions like heavy rain, snow, or exposure to salt on the roads can contribute to corrosion and damage in the exterior illumination lamp circuit.

10. Will fixing OBDII code B263A on my 2017 Chevrolet Silverado improve fuel efficiency or performance?

Fixing the code is unlikely to have a direct impact on fuel efficiency or performance, but it is crucial for maintaining the proper functioning of your vehicle's exterior lighting system.

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