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.
Overview - Display Control Head, Electric-Manual Climate Control System
An indicator lamp inside the controls indicates when the selected function is on.
If the indicator lamp in the A/C button does not come on after the button is pressed, a fault may be stored in the control module. Access the DTC memory using the Vehicle Diagnostic Tester . If the fault stored in the DTC memory "A/C compressor first start not performed" is present, then is it necessary to perform a basic setting and an adaptation "A/C compressor first start" either in Guided Fault Finding or in Guided Functions .
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.