C1867 Code: Meaning, Symptoms, Causes & Fix

C1867

Overview

When C1867 appears, the control module has detected abnormal behavior related to Air Suspension Rear Inflator Solenoid Output Circuit Short To Battery in ABS/chassis dynamics and brake control.

Symptoms

  • ABS/traction light on
  • longer braking intervention
  • reduced stability control performance

Common causes

  • Open circuit in wiring affecting air suspension rear inflator solenoid output circuit short to battery
  • Broken terminal inside harness
  • Connector pin damage/corrosion or harness stress near related components

How to diagnose C1867

  1. Confirm C1867 and capture freeze-frame data with a professional scan tool.
  2. Inspect wiring, connectors, and grounds related to air suspension rear inflator solenoid output circuit short to battery for obvious defects.
  3. Use a continuity test from module pin to component to identify opens/high resistance.
  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 C1867

Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.

Can you drive with C1867?

Most vehicles can be driven short-term with C1867, 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)

  1. Repair obvious wiring/connector faults first to prevent repeat parts replacement.
  2. Address the root fault mode (open) in the air suspension rear inflator solenoid output circuit short to battery circuit/system.
  3. Apply the required relearn/adaptation procedure if specified by service information.
  4. Road-test and verify C1867 remains cleared under the conditions that originally set the code.

Fix options

  • Clear corrosion and protect terminals.
  • Repair open circuit and secure connector lock.
  • Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$240-$1200

Common mistakes when diagnosing C1867

  • 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.

C1867 in common vehicles

C1867 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 C1867?

C1867 is commonly set by open faults affecting air suspension rear inflator solenoid output circuit short to battery.

How much does it cost to fix C1867?

For C1867, repair costs are typically $240-$1200 depending on exact root cause, labor rates, and part quality.

Can I clear C1867 without repair?

You can clear C1867 temporarily, but the code usually returns until the underlying fault is corrected.

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