P0287 Code: Meaning, Symptoms, Causes & Fix

Overview

P0287 is triggered when monitoring logic identifies an issue with Cylinder 9 Contribution/Balance Fault affecting powertrain controls.

Symptoms

reduced performance
increased fuel use
check engine light

Common causes

Electrical fault in the affected circuit affecting cylinder 9 contribution/balance fault
Component failure in the monitored system
Connector pin damage/corrosion or harness stress near related components

How to diagnose P0287

Confirm P0287 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to cylinder 9 contribution/balance fault 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 P0287

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

Can you drive with P0287?

The vehicle is often drivable with P0287, 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 cylinder 9 contribution/balance fault circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify P0287 remains cleared under the conditions that originally set the code.

Fix options

Clear code and confirm through drive cycle.
Test component operation and replace if faulty.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$100-$450

Common mistakes when diagnosing P0287

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.

P0287 in common vehicles

P0287 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 P0287?

P0287 is commonly set by generic faults affecting cylinder 9 contribution/balance fault.

How much does it cost to fix P0287?

For P0287, repair costs are typically $100-$450 depending on exact root cause, labor rates, and part quality.

Can I clear P0287 without repair?

You can clear P0287 temporarily, but the code usually returns until the underlying fault is corrected.