Coding A/C control head -E87-, beginning at index "J"

NOTE:

• For vehicles with gasoline engines, the signal "idle control on" serves the engine control module as auxiliary information. It is sent out as soon as the temperature control in the passenger compartment requires an increase in cooling or heating power.
• The compressor manufacturer "Nippondenso" has changed its name to "Denso."
• The essential differences in the coding between "Rest of the world (00080)" and "USA (00180)" or "Japan (00280)" are the following: USA - temperature indicator in ° F before ° C, smaller differences in temperature coordination. Japan - the function of the "manually switched on recirculating air" is not erased with the ignition switched off.

Fig 1: A/C Control Head Coding Identification Chart (Beginning At Index "J")

Courtesy of AUDI OF AMERICA, INC.