SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSVOLVO2017S60 T5 INSCRIPTION, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 57 (IGNITION AND CONTROL SYSTEMS - DESIGN AND FUNCTION)ENGINE CONTROL MODULEENGINE CONTROL MODULE (ECM) [2011-2012, B5254T5]DESIGNCAMSHAFT RESET VALVE (CONTINUOUS VARIABLE VALVE TIMING (CVVT))
2017 Volvo S60 T5 Inscription, FWD

Camshaft Reset Valve (Continuous Variable Valve Timing (CVVT))

2017 Volvo S60 T5 Inscription, FWDSECTION Camshaft Reset Valve (Continuous Variable Valve Timing (CVVT))
WARNING: This page is about a different variant/trim than selected.
GLL139838Courtesy of VOLVO CARS CORPORATION

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 CVVT unit by moving the piston in the reset valve. The continuous variable valve timing (CVVT) unit turns the camshaft (the camshaft timing changes). The direction in which the camshaft turns depends on the chamber in the CVVT unit which is supplied with oil (pressure). Also refer to: FUNCTION  

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 grounded using a pulse width modulation (PWM) signal, the oil flow in the valve can be regulated to the different chambers in the continuous variable valve timing (CVVT) unit at variable rates. This allows the cam timing to be changed precisely and steplessly.

The engine control module (ECM) can diagnose the camshaft reset valve.

The valve is on the cylinder head above the camshaft with camshaft control.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.