Possible Causes & Corrective Action

Open or short between A/C control head (A/C-heater control panel) and instrument cluster. Repair wiring. See WIRING DIAGRAMS  .

Incorrect control module (does not support CAN). Replace control module. Control module that supports CAN is not indicated with a 1 in measured value block display group 126. See FUNCTION MODE 08: READING MEASURED VALUE BLOCK  under SELF-DIAGNOSTIC SYSTEM.

Adaptation for instrument cluster was not performed properly. Input correct adaptation number in channel 60. See FUNCTION MODE 10: ADAPTATION  under SELF-DIAGNOSTIC SYSTEM.