Checking the circuit

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Connector

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Disconnect connector B on the climate control module (CCM).

  Check connector B on the climate control module (CCM) and the damper motor connector. Check for contact resistance and oxidation. Check for damage carefully.

  Check the signal cable between the climate control module (CCM) and the damper motor. Check for an open-circuit by measuring the resistance between terminals #B21 (#21) and #B11-#B14 (#11-#14).

  Other information: 

  • To access or replace the control module, see Dashboard environment panel (including climate control module (CCM)), replacing
  • To access or replace the damper motor, see Damper motor temperature, replacing
  • See Checking wiring and terminals .
  Fig 3: Identifying Ohm Meter

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Checking the cable 

• NO 

  Refer to Checking the cable