B2354 is triggered when monitoring logic identifies an issue with Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open affecting body electronics and comfort modules.
B2354 Code: Meaning, Symptoms, Causes & Fix
Overview
Symptoms
- module resets or glitches
- feature inoperative intermittently
- battery draw complaints
Common causes
- Disconnected or loose connector affecting driver mirror horizontal / vertical feedback potentiometer circuit open
- Broken terminal inside harness
- Connector pin damage/corrosion or harness stress near related components
How to diagnose B2354
- Confirm B2354 and capture freeze-frame data with a professional scan tool.
- Inspect wiring, connectors, and grounds related to driver mirror horizontal / vertical feedback potentiometer circuit open for obvious defects.
- Use a continuity test from module pin to component to identify opens/high resistance.
- Check for related DTCs to identify the root-cause chain before replacing parts.
- After repair, clear codes and confirm readiness monitors complete without recurrence.
Severity of code B2354
Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.
Can you drive with B2354?
Most vehicles can be driven short-term with B2354, but postpone heavy load/highway driving until repaired.
If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.
How to fix it (step-by-step)
- Repair obvious wiring/connector faults first to prevent repeat parts replacement.
- Address the root fault mode (open) in the driver mirror horizontal / vertical feedback potentiometer circuit open circuit/system.
- Apply the required relearn/adaptation procedure if specified by service information.
- Road-test and verify B2354 remains cleared under the conditions that originally set the code.
Fix options
- Clear corrosion and protect terminals.
- Restore continuity and verify pin tension.
- Clear DTCs and verify with live data and completed drive cycle.
Typical repair cost
$160-$850
Common mistakes when diagnosing B2354
- Replacing parts without verifying voltage, ground, and signal integrity first.
- Ignoring related stored/pending codes that indicate upstream faults.
- Skipping post-repair verification drive cycle and readiness checks.
B2354 in common vehicles
B2354 appears across makes such as Nissan, Hyundai, Kia, Volkswagen. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.
Frequently asked questions
What causes B2354?
B2354 is commonly set by open faults affecting driver mirror horizontal / vertical feedback potentiometer circuit open.
How much does it cost to fix B2354?
For B2354, repair costs are typically $160-$850 depending on exact root cause, labor rates, and part quality.
Can I clear B2354 without repair?
You can clear B2354 temporarily, but the code usually returns until the underlying fault is corrected.