AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Buick - B2473 Buick

B2473 Buick Code - High Beam Output Fault

- Code Popularity: 482 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC B2473 Buick?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty High/Low Headlamp Relay
  • High/Low Headlamp Relay harness is open or shorted
  • High/Low Headlamp Relay circuit poor electrical connection
  • Faulty Platform Zone Module (PZM)
⚠ Does your Buick have Safety Recalls? → Check here

How to Fix the DTC B2473 Buick?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for B2473 Buick Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2473 Buick code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code B2473 Buick Description

High beams are commanded by Platform Zone Module (PZM) through an output to HI/LO beam relay. When headlight relay is energized, HI/LO beam relay provides power source to low beams or high beams.
The Diagnostic Trouble Code (DTC) B2473 will set when commanded state of high beams does not match the feedback state. When DTC B2473 is set, PZM will continue to command state requested until IPC revokes request. DTC B2473 will clear when the commanded state matches the feedback state.

OBDII Code B2473 Buick - High Beam Output Fault - AutoCodes.com
B2473 Buick Code - High Beam Output Fault

Need More Information on the Code?

Need more information on how to fix the B2473 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2473 Buick code diagnosed by a professional: Find a repair shop in your area

Code B2473 Buick comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B2473 Buick code? Have you replaced any parts?
Any information is appreciated. Thanks