OBD Codes

C0142

Air Suspension Compressor Overheated

Moderateelectrical

Overview

The C0142 code indicates that the chassis control module has detected a air suspension compressor overheated condition. This diagnostic trouble code relates to the electrical control circuits within the vehicle's chassis safety systems, including ABS, traction control, and stability control. When this code is stored, one or more chassis safety features may be disabled, which can reduce braking performance and vehicle stability under adverse driving conditions.

Symptoms

  • Power steering assist reduced or lost
  • Vehicle leans excessively during cornering
  • Loss of traction control function
  • Unusual brake pedal feel or pulsation

Common Causes

  • Faulty ABS control module (EBCM)
  • Battery voltage too low or unstable
  • Failed power steering control module
  • Faulty ABS valve body or solenoid pack

Diagnosis Steps

  1. 1Connect an OBD-II scanner and read all stored chassis trouble codes and freeze frame data
  2. 2Inspect the ABS/ESC module connectors for corrosion, damage, or loose pins
  3. 3Check the ABS fuse and relay in the fuse box; replace if blown or faulty
  4. 4Test the ABS pump motor operation using a scan tool bi-directional command
  5. 5Measure circuit voltage and ground at the ABS module with a multimeter

Estimated Repair Cost

$150$1,200

Cost varies by vehicle, location, and repair shop. Includes parts and labor.

Commonly Affected Vehicles

Ford F-150Chevrolet SuburbanHonda AccordDodge Ram 1500

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Frequently Asked Questions

Your standard brakes will still work, but the anti-lock braking function is disabled. This means wheels can lock up during hard braking, especially on wet or icy roads. Avoid aggressive driving and have the system inspected promptly.