Diagnostic trouble code (DTC) information

Condition 

Fig 1: Identifying ECC Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diagnostic trouble code (DTC) ECC-440 is stored if the ECC control module detects that its internal signals are incorrect.

Possible Source 

• Fault in ECC control module.

Fault symptom[s] 

• Driver fault warning. The LEDs beside the A/C and REC switches flash for approximately 20 seconds.