Checking the connectors

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
Check the connectors on the climate control module (CCM) (terminals #A2, #A3) and the power unit. Check for contact resistance and oxidation. In particular, check for any damage
Reinstall the components, reconnect the connectors etc.
Ignition on.
NOTE:
If the battery voltage has been interrupted, the blower fan speed must be calibrated. First turn the blower fan speed control to maximum speed and then to minimum speed.

Check that the blower fan motor functions: Turn the blower fan speed switch.

If the blower fan is now working the cause of the fault was loose connections in the connectors.

Other information:
- To connect the breakout box, see Connecting the breakout box
- To access and replace the control module, see Dashboard environment panel (including climate control module (CCM)), replacing
- To access or replace the power unit, see Blower fan motor / power unit, replacing .
Fig 2: Connector, Green (16- Pin)
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Connector, Black (2-Pin)
Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the blower fan motor functioning?