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Home >> Lexus >> 2003 >> RX 300 FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - System & Component Testing >> Variable Valve Timing (VVT) System >> Camshaft Timing Oil Control Valve >> Oil Control Valve Operation
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Oil Control Valve Operation

Remove Oil Control Valve (OCV) to be tested. Connect a fused jumper wire between battery voltage and terminal No. 1 at OCV. See Fig 1. Connect another jumper wire between negative battery terminal and terminal No. 2 at OCV and note OCV plunger operation. With battery voltage applied, plunger on end of OCV should extend. Disconnect a jumper wire. Without battery voltage applied, plunger should retract. If OCV operation is not as specified, replace OCV.

Fig 1: Testing Camshaft Timing Oil Control Valve
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