Checking Components

Check relevant connectors for contact resistance and corrosion.

HINT: Both a damaged front and/or a damaged rear heated oxygen sensor may be the cause of the stored diagnostic trouble code (DTC). 

HINT: Check other stored DTCs to draw relevant conclusions about which heat oxygen sensor(s) should be replaced, this is to avoid incorrect replacement of components. 

Remedy as necessary.

Other information 

• see CHECKING WIRING AND TERMINALS
• see OXYGEN SENSOR (CATALYST MONITOR SENSOR)

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA (Volvo Scan Tool)

Courtesy of VOLVO CARS CORPORATION

• Continue 

  Refer to VERIFICATION