🔍

B2321: Mirror Driver Horizontal Feedback Potentiometer Circuit Open

Severity
Low
System
Body
Last reviewed: Last updated:

Methodology: We combine code standards with complaint and reliability patterns, then review for clear, vehicle-first diagnosis steps.

Sources: SAE/OBD-II definitions, manufacturer service information, and public reliability reports (including NHTSA where applicable).

Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.

What Does B2321 Mean?

B2321 is a diagnostic trouble code indicating: Mirror Driver Horizontal Feedback Potentiometer Circuit Open. This code relates to the body system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

Symptoms of B2321

Common Causes

Frequently Asked Questions

What does B2321 mean?
B2321 indicates: Mirror Driver Horizontal Feedback Potentiometer Circuit Open. The vehicle's computer has detected that the Mirror Driver Horizontal Feedback Potentiometer is not operating within its expected parameters and stored this diagnostic trouble code.
Can I drive with code B2321?
Yes, B2321 is generally safe to drive with in the short term. However, it should still be addressed to pass emissions testing and prevent potential secondary issues.
How much does it cost to fix B2321?
Repair costs for B2321 typically range from $30 to $300, depending on the root cause. Simple wiring or connector repairs are on the lower end, while component replacement costs more. A proper diagnosis ($80–$150 at most shops) will identify the exact cause before committing to expensive parts.

What To Do Next

Possible Fixes

  • 🔧 Locate and repair broken wire in Mirror Driver Horizontal Feedback Potentiometer circuit
  • 🔧 Replace damaged Mirror Driver Horizontal Feedback Potentiometer connector
  • 🔧 Replace Mirror Driver Horizontal Feedback Potentiometer if internally open
  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

B2300 Seat Driver Memory Position Error B2301 Seat Passenger Memory Position Error B2302 Seat Headrest Feedback Potentiometer Circuit Failure B2303 Seat Headrest Feedback Potentiometer Circuit Open B2304 Seat Headrest Feedback Potentiometer Circuit Short to Battery B2305 Seat Headrest Feedback Potentiometer Circuit Short to Ground B2306 Seat Headrest Motor Stalled B2310 Mirror Driver Memory Position Error B2311 Mirror Passenger Memory Position Error B2312 Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure