Checking The Component

Check the turbocharger (TC) control valve (A) by activating it. The turbocharger (TC) control valve must click when it is activated.

HINT: The operation of the turbocharger (TC) control valve can be intermittent. A damaged turbocharger (TC) control valve can be difficult to detect during activation. 

Check that the hose (1) between the pressure servo for the boost pressure control (BPC) valve (B) and the turbocharger (TC) control valve (A) is correctly installed. Check for damage/blockage.

Check that the hose (2) between the charge air pipe and the turbocharger (TC) control valve (A) is correctly installed. Check for damage/blockage.

Check the intercooler for blockage/clogging.

Check the setting of the pressure servo for the boost pressure control (BPC) valve (B). Check that the pressure servo for the boost pressure control (BPC) valve is functioning correctly.

Check the operation of the boost pressure control (BPC) valve (C). Check that the boost pressure control (BPC) valve (C) is not sticking.

Remedy as necessary.

Other information: 

• see ACTUATOR TURBO PRESSURE (VACUUM)

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION

Fig 2: Identifying ECM, Turbocharger (TC) Control Valve And Boost Pressure Control (BPC) Valve

Courtesy of VOLVO CARS CORPORATION

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  Refer to VERIFICATION