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Home >> Infiniti >> 2021 >> QX50 Essential, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (1 Of 3) >> System Description >> Component Location >> Variable Compression Ratio Actuator >> Individual Function Within The System
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Individual Function Within The System

VCR actuator is operated according to the signal from ECM. The current angle of VCR control shaft 2 is fed back to ECM.

VCR motor 

VCR motor rotates VCR control shaft according to the control signal of VCR control module.

GNSILL0182267-267Courtesy of NISSAN NORTH AMERICA, INC.

VCR motor rotation angle sensor 

VCR motor rotation angle sensor send the rotation angle signal of VCR control shaft 2 to VCR CU.

(This signal is utilized to drive VCR motor.)

VCR control shaft 2 rotation angle sensor 

When Ignition switch is ON position, VCR control shaft 2 rotation angle sensor reads the position of VCR control shaft 2.

(Reading position is utilized as the trouble diagnosis for VCR motor rotation angle sensor.)

GNSILL0182266-266Courtesy of NISSAN NORTH AMERICA, INC.