OBD Guide

C1964

Air Suspension Compressor Actual Run Time Exceeded Allowed Run Time

C1964 is an OBD-II diagnostic trouble code meaning: Air Suspension Compressor Actual Run Time Exceeded Allowed Run Time. Common causes: air leak in the pneumatic system, air suspension compressor malfunction. Estimated repair cost: $167–556.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Uneven vehicle clearance
  • Continuous operation of the compressor when the ignition is turned on
  • Reduced suspension efficiency
  • Warning messages on the instrument panel

Causes

  • Air leak in the pneumatic system
  • Air suspension compressor malfunction
  • Problems with suspension level sensors
  • Contamination or damage to air lines
  • Malfunction of air suspension valves

How to Fix

  1. Check the system for air leaks
  2. Diagnose the compressor for wear or overheating
  3. Check suspension level sensors and their calibration
  4. Inspect air lines and connections
  5. If necessary, replace the compressor or repair kits

Related codes

FAQ

What does the C1964 code mean?

C1964 is an OBD-II diagnostic trouble code that indicates: Air Suspension Compressor Actual Run Time Exceeded Allowed Run Time

What causes a C1964 error code?

The most common causes of C1964 include: Air leak in the pneumatic system; Air suspension compressor malfunction; Problems with suspension level sensors; Contamination or damage to air lines.

How do I fix a C1964 diagnostic trouble code?

To fix C1964: Check the system for air leaks. Diagnose the compressor for wear or overheating. Check suspension level sensors and their calibration. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1964?

Limited driving only, diagnose soon

How much does it cost to fix C1964?

The estimated repair cost for C1964 is $167–556. Actual cost depends on your vehicle, location, and labor rates.

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