Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Section 861 (Air Conditioning System - Diagnosis): Pre-Check
- WARNING FOR A/C COMPRESSOR LOCK
If compressor lock occurs during A/C operation, the A/C switch indicator on the A/C control assembly starts blinking.
When this occurs, check for compressor lock (DTC 1422/22) using diagnosis trouble code check, and then proceed to inspect the circuit or the component.
Compressor lock sensor circuit. --> (See DTC B1422/22 COMPRESSOR LOCK SENSOR CIRCUIT )
- LIST OF OPERATION METHODS
By operating each of the A/C control switches as shown in the diagram below, it is possible to enter the diagnosis check mode.
- INDICATOR CHECK
- Turn the ignition switch to ON while pressing the A/C control AUTO switch and R/F switch simultaneously.
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.