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Home >> Nissan-Datsun >> 2021 >> Altima S >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Pr25DD) (DTC/Circuit Diagnosis) (2 Of 4) >> DTC/Circuit Diagnosis >> DTC P0404: EGR Volume Control Valve >> DTC Description >> PR25DD engine >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P0404

00

EGR A CONTROL

(EGR A control circuit range/performance)

A

Diagnosis condition

--

Signal (terminal)

EGR volume control valve signal

Threshold

ECM detects that the current sent to the EGR volume control valve motor is equal to or more than the threshold value for 2 seconds or more under the condition that the target angle of EGR volume control valve is constant.

Diagnosis delay time

--

B

Diagnosis condition

--

Signal (terminal)

EGR volume control valve signal

Threshold

ECM detects that the difference between the target angle of EGR volume control valve and actual valve angle is equal to or more than the threshold value for 5 seconds or more.

Diagnosis delay time

--