2000 Chrysler 300M Q&A
2000 Chrysler 300M Question: heat/cool
Vehicle Application: 1999 Chrysler 300M 3.5L Customer Concern: Unable to change the temperature through the control knob on the Automatic Temperature Control (ATC) head. Tests/Procedures: 1. Run the calibration test of the ATC system without a scan tool: 2. Set the temperature to 75 and the blower speed to any speed but off. 3. Depress and hold the floor, mix, defrost buttons at the same time until the display begins to blink. 4. The control head will continue to blink while it is performing diagnostics and calibration of the air doors. 5. Any codes will be displayed on the control head. Potential Causes: Calibration Temperature Blend Door Actuator Tech Tips: Code 36 indicates a bad control head. - backyard tech
Bad control head disconnect the battery 10 mins if the light comes back on same code change the part - sinautoscan.com
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