Volvo Workshop Manuals
XC70 L5-2.5L Turbo VIN 59 B5254T2 (2003)
Engine, Cooling and Exhaust > Engine > Actuators and Solenoids - Engine > Variable Valve Timing Actuator > Component Information > Description and Operation > Camshaft Control (CVVT) > Page 2575
Variable Valve Timing Actuator: Description and Operation
Camshaft Reset Valve (Continuous Variable Valve Timing (CVVT))
The camshaft reset valve controls the oil flow to the CVVT unit (camshaft pulley).
The valve consists of an electro-magnetic valve with a spring-loaded piston. There are slits in the piston which channel the engine lubricating oil to the
The system relay supplies the reset valve with voltage. The valve is grounded (control stage) in the engine control module (ECM). When the valve is
The engine control module (ECM) can diagnose the camshaft reset valve.
The valve is on the cylinder head above the camshaft with camshaft control.
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