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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 358 (Engine Control System (DTC/Circuit Diagnosis) (12 Of 17)) >> DTC/Circuit Diagnosis >> DTC P1564: ASCD Steering Switch >> DTC Description >> DTC Detection Logic

DTC Detection Logic

WARNING: This page is about a different car, the 2019 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1564

ASCD SW

(ASCD steering switch)

Diagnosis condition

Ignition switch ON

Signal (terminal)

ASCD steering switch signal

Threshold

  • An excessively high voltage signal from the ASCD steering switch is sent to ECM
  • ECM detects that input signal from the ASCD steering switch is out of the specified range
  • ECM detects that the ASCD steering switch is stuck ON

Diagnosis delay time

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