C1287 Code: Meaning, Symptoms, Causes & Fix

Overview

Symptoms

• poor throttle response
• occasional limp mode
• surging or unstable idle

Common causes

• Component failure in the monitored system affecting booster pedal force switch circuit failure
• Control module logic or calibration issue
• Connector pin damage/corrosion or harness stress near related components

How to diagnose C1287

1. Confirm C1287 and capture freeze-frame data with a professional scan tool.
2. Inspect wiring, connectors, and grounds related to booster pedal force switch circuit failure for obvious defects.
3. Use freeze-frame and live data to isolate whether the issue is electrical, mechanical, or control logic.
4. Check for related DTCs to identify the root-cause chain before replacing parts.
5. After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code C1287

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

Can you drive with C1287?

The vehicle is often drivable with C1287, 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)

1. Repair obvious wiring/connector faults first to prevent repeat parts replacement.
2. Address the root fault mode (generic) in the booster pedal force switch circuit failure circuit/system.
3. Apply the required relearn/adaptation procedure if specified by service information.
4. Road-test and verify C1287 remains cleared under the conditions that originally set the code.

Fix options

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

Typical repair cost

$100-$450

Common mistakes when diagnosing C1287

• 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.

C1287 in common vehicles

C1287 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 C1287?

C1287 is commonly set by generic faults affecting booster pedal force switch circuit failure.

How much does it cost to fix C1287?

For C1287, repair costs are typically $100-$450 depending on exact root cause, labor rates, and part quality.

Can I clear C1287 without repair?

You can clear C1287 temporarily, but the code usually returns until the underlying fault is corrected.

Helpful tools

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