Checking components and wiring

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on.

  Check the sun sensor by varying the light intensity. Cover the sun sensor with your hand for example to obtain the minimum signal value, approximately 0 W/m² .

  Then aim a strong light source (for example a flashlight) at the sun sensor from close range to increase the signal.

  Click on the VCT2000 symbol to read off the sun intensity.

  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Sun Sensor

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  NOTE:

  The illustration only shows the method. The appearance of the sun sensor can vary between different models.

Does the value change? 

• YES 

  Refer to Checking the cable 

• NO 

  Refer to Checking components and wiring 

Check the signal cable between control module terminal #B4 (#4) and sun sensor terminal #1 (#21). Check for a short-circuit to ground.

Try replacing the sun sensor if no fault is found in the wiring.

Remedy as necessary.

Other information: 

• To access or replace the control module, see Dashboard environment panel (including climate control module (CCM)), replacing
• To connect the breakout box, see Connecting the breakout box
• To access or replace the sun sensor, see Sun sensor / alarm LED, replacing
• For other values, see Signal description, climate control module (CCM), Connector B
• See Checking wiring and terminals .

Fig 1: Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Continue 

  Refer to Verification