Checking Components

Check the exhaust system for air leakage

HINT: If the above fault-tracing does not remedy the fault, try replacing the heated oxygen sensors (HO2S), as the diagnostic trouble code (DTC) can also be stored by a defective front/rear heated oxygen sensor (HO2S). 

Remedy as necessary.

Other information 

• see AIR LEAKAGE EXHAUST SYSTEM, CHECK
• see OXYGEN SENSOR (CATALYST MONITOR SENSOR)

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

Courtesy of VOLVO CARS CORPORATION

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  Refer to VERIFICATION