LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control Module (CCM) Diagnostic Trouble Codes - 1 Of 2 >> CCM-0021: Air Quality Sensor. Internal Fault (1999-2004) >> Internal fault >> Checking the function

Checking the function

The climate control module (CCM) has registered an internal fault in the air quality sensor. If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the control module or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. If the fault recurs, replace the air quality sensor.

In the event of a permanent fault, replace the air quality sensor:

Fig 1: Air Quality Sensor
GLL105976Courtesy of VOLVO CARS OF NORTH AMERICA.
scientia non olet · About LEMON Manuals