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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1656 Or DTC P1663: Oil Control Valve (OCV) >> Circuit Description

Circuit Description

Oil Control Valve (OCV) varies oil pressure between 2 circuits changing intake camshaft position in relation to crankshaft angle.

DTC is set when ECM detects an open or short in OCV circuit. DTC P1656 is for bank No. 1 OCV. DTC P1663 is for bank No. 2 OCV. Possible causes are:

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