Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Climate Control Module (CCM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) CCM-001B is stored if the control module registers that the identity of a lower switch is missing compared with the switch identities included in the Car Configuration File.

Substitute Value 

• The control module assumes different values depending on which switch identity is missing.

Possible Source 

• Defective switch
• Switch missing
• Fault in the Car Configuration File.

Fault symptom[s] 

• The function button is not working.