B2320 — Mirror Driver Horizontal Feedback Potentiometer Circuit Failure

Q: "Can I drive with this code?"

"It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon."

Q: "Will this code clear itself?"

"Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first."

Q: "How do I find the exact cause?"

"A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component."

What Does B2320 Mean?

B2320 is a diagnostic trouble code indicating: Mirror Driver Horizontal Feedback Potentiometer Circuit Failure. This code relates to the body manufacturer-specific system. It has been reported in NHTSA complaints across 1 different vehicle models.

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"BATTERY APPEARS TO DRAIN OVER A RELATIVELY SHORT PERIOD OF TIME RESULTING IN: P1604 STARTABILITY MALFUNCTION, B2320 BACK &SIDE RADAR LOW VOLTAGE, C1413 ANTILOCK BRAKES VOLTAGE MALFUNCTION, B2500 POWER LIFT GATE VOLTAGE MALFUNCTION, B2A07 TELEMATICS BATTERY CHARGE HISTORY FAULT, B1011 BATTERY POWER "
— Subaru Outback owner, 11/20/2019

Source: NHTSA Complaints Database

Most Reported Vehicles for B2320

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	SUBARU OUTBACK

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

B2320: Mirror Driver Horizontal Feedback Potentiometer Circuit Failure