Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying Manual Climate Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) CCM-001D is stored if the control module registers that the signal from the left-hand temperature control is in excess of 99% or less than 1% of the supply voltage (approximately 5 V).

Substitute Value 

• The control module adopts a value corresponding to half of the maximum temperature control output.

Possible Source 

• Defective potentiometer
• Short-circuit to supply voltage or ground in the potentiometer.

Fault symptom[s] 

• The passenger compartment temperature does not correspond to the set value.