C1806
Air Suspension Vehicle Height Sensor Fix
C1806 is an OBD-II diagnostic trouble code meaning: Air Suspension Vehicle Height Sensor Fix. Common causes: faulty body height sensor, open or shorted wiring harness. Estimated repair cost: $111–556.
Symptoms
- Incorrect operation of the air suspension
- The car sags or does not change height
- The Check Engine or Suspension Warning light is on.
- Suspension error message on dashboard
Causes
- Faulty body height sensor
- Open or shorted wiring harness
- Corrosion of contacts or connectors
- Problems with the suspension control unit
- Mechanical damage to the sensor or lever
How to Fix
- Visual inspection of the sensor and its mountings
- Checking the condition of the wiring harness and contacts
- Sensor resistance diagnostics
- Checking sensor signals with a scanner
- Replacing the sensor or repairing the wiring if necessary
- Resetting the error and checking the system operation
Related codes
FAQ
What does the C1806 code mean?
C1806 is an OBD-II diagnostic trouble code that indicates: Air Suspension Vehicle Height Sensor Fix
What causes a C1806 error code?
The most common causes of C1806 include: Faulty body height sensor; Open or shorted wiring harness; Corrosion of contacts or connectors; Problems with the suspension control unit.
How do I fix a C1806 diagnostic trouble code?
To fix C1806: Visual inspection of the sensor and its mountings. Checking the condition of the wiring harness and contacts. Sensor resistance diagnostics. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1806?
Limited driving only, diagnose soon
How much does it cost to fix C1806?
The estimated repair cost for C1806 is $111–556. Actual cost depends on your vehicle, location, and labor rates.
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