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Home >> Infiniti >> 2024 >> Q50 Luxe, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (4 Of 7) >> Engine (ECM) >> P052D Intake Valve Timing Control >> DTC Description
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DTC Description

DTC DETECTION LOGIC 

DTC CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P052D CAMSHAFT POSITION TIMING B2
(Cold start "A" camshaft position timing over-advanced bank 2)
Diagnosis condition Cold condition
Signal (terminal) -
Threshold There is a gap between angle of target and phase-control angle degree when the engine is in a cold condition.
Diagnosis delay time -

POSSIBLE CAUSE 

A

B

FAIL-SAFE 

Fail safe mode Vehicle behavior
Device fix mode
  • Fixes electric intake valve timing control motor in the reference position.
  • Fixes exhaust valve timing control solenoid valve in the reference position.
Others ECM stops the electric valve timing control. (The camshaft returns to the position of most retard angle. When VTC mechanism sticks, camshaft position does not change from position of stuck angle.)