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.
System Block Diagram
- A/C control and status display
Using the CAN communication, perform A/C control from vehicle information and each sensor value to actuate the A/C system device. Also display A/C status on MFD by CAN output of A/C status.
- Hazard is ON
Output hazard switch signals to body integrated unit. The control of hazard illumination is carried out via body integrated unit.
- Illumination
Adjust the A/C control panel lighting according to input (body integrated unit and combination meter).
- Engine control
Transmit the A/C status via CAN for engine control.
- Rear defogger operation
Output switch signals to body integrated unit. The control of rear defogger operation is carried out via body integrated unit.
- Mirror heater operation
Output switch signals to body integrated unit. The control of mirror heater operation is carried out via body integrated unit.
- Voice recognition
Change the A/C setting according to voice input in combination with AVN.
- Remote climate control (RCC)
Operate and stop RCC in combination with Electric vehicle charger assembly, keyless access control module, DCM, body integrated unit, Hybrid vehicle control ECU assembly, access key, and smartphone (mobile phone).
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.