Coding A/C-Heater Control Panel

NOTE: Basic setting procedure must be performed each time A/C-heater control panel is coded. See BASIC SETTING . Verify engine and A/C compressor type, code A/C-heater control panel and perform basic setting. Always verify coding of removed and replacement A/C-heater control panel.

NOTE: Ignition key coding is transmitted to A/C-heater control panel from instrument cluster along with engine coolant temperature. When ignition is turned on an ENGINE TEMPERATURE TOO HIGH signal is also sent. Key coding can only be processed by A/C-heater control panels with part No. 8D0 820 043 after index "M". No information can be transmitted if coolant temperature is too high. When ignition is turned on, A/C-heater control panel resumes climate control settings that were valid when ignition was last turned off using key used to turn ignition on.

Ensure scan tool is in A/C HEATING ELECTRONICS function. With RAPID DATA TRANSFER displayed on scan tool, press "0" and "7" buttons to select CODE CONTROL UNIT function. Press "Q" button to confirm input. Press right arrow button. Enter code "00 140" for USA, 4-cylinder, left hand drive, gas engine or "00 160" for USA, 6-cylinder, left hand drive, gas engine. Press "Q" button to enter input. Perform BASIC SETTING.