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.
Fail-Safe Function
- If a communication error exists between the front air control's Application Specific Integrated Circuit (ASIC) and Central Processing Unit (CPU), the air conditioning system is controlled under the following conditions:
Compressor: OFF
Air outlet: Setting before communication error occurs
Air inlet: Setting before communication error occurs
Blower fan speed: HI
Set temperature: Setting before communication error occurs
- If a communication error exists between the front air control's CPU and the ASIC, the air conditioning system is controlled under the following conditions:
Compressor: Control is normal operation
Air outlet: Control is normal operation
Air inlet: Control is normal operation
Blower fan speed: Control is normal operation
Set temperature: Control is normal operation
Indicator brightness: Full brightness
Illumination brightness: Full brightness
- If a communication error exists between the front air control's CPU and the EEPROM (Electrically Erasable Programmable Read-Only Memory), the air conditioning system is controlled using the CPUs default values and a DTC is set.
- If a button becomes stuck for 2 minutes, it will be disabled until the next ignition cycle.
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.