B2145 Code: Meaning, Symptoms, Causes & Fix

Overview

B2145 is triggered when monitoring logic identifies an issue with NVM RF HR Failure affecting body electronics and comfort modules.

Symptoms

module resets or glitches
feature inoperative intermittently
battery draw complaints

Common causes

Electrical fault in the affected circuit affecting nvm rf hr failure
Control module logic or calibration issue
Connector pin damage/corrosion or harness stress near related components

How to diagnose B2145

Confirm B2145 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to nvm rf hr failure for obvious defects.
Use freeze-frame and live data to isolate whether the issue is electrical, mechanical, or control logic.
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 B2145

Low: This code is low to moderate severity in most cases, but diagnosis is still recommended to avoid recurring warnings.

Can you drive with B2145?

The vehicle is often drivable with B2145, but plan a repair window to prevent repeat faults.

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 (generic) in the nvm rf hr failure circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify B2145 remains cleared under the conditions that originally set the code.

Fix options

Inspect circuit and connector condition.
Test component operation and replace if faulty.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$90-$400

Common mistakes when diagnosing B2145

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.

B2145 in common vehicles

B2145 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 B2145?

B2145 is commonly set by generic faults affecting nvm rf hr failure.

How much does it cost to fix B2145?

For B2145, repair costs are typically $90-$400 depending on exact root cause, labor rates, and part quality.

Can I clear B2145 without repair?

You can clear B2145 temporarily, but the code usually returns until the underlying fault is corrected.