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Home >> Volvo >> 2002 >> S60 Base, 2.4 61, Standard >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) - Diagnostic Trouble Codes And Associated Procedures - 8 Of 14 >> ECM-601C: Turbocharger (TC) Control System, Boost Pressure Fault. Signal Too High (B5204T5; B5254T4; 2005-2007) >> Signal too high >> Checking >> Checking hoses and the turbocharger (TC) control valve

Checking hoses and the turbocharger (TC) control valve

Check the hoses between the pressure servo for the boost pressure control (BPC) valve and the turbocharger (TC) control valve. Check that the hoses are not trapped, blocked or damaged.

Check the hoses between the turbocharger (TC) control valve and the charge air pipe (between the turbocharger (TC) and the charge air cooler (CAC)). Check that the hoses are not trapped, blocked or damaged.

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

5-cylinder engines: 

Check the setting of the pressure servo for the boost pressure control (BPC) valve. Check the boost pressure control (BPC) valve. Check that the pressure servo and the boost pressure control (BPC) valve are functioning correctly and are not sticking:

See Wastegate valve, adjusting

See Pressure regulator, checking/adjusting 

Other information: 

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
GLL100563Courtesy of VOLVO CARS OF NORTH AMERICA.
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