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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Transmission (TCM) >> DTC U0103: Shift Control Module A >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U0103

SHIFT CONT MODULE A

(Lost Communication With SCU)

Diagnosis condition

When the ignition switch is ON

Signal

CAN communication signal

Threshold

TCM is unable to receive the CAN communications signal from electric shift control module

Diagnosis delay time

Continuously for 90 seconds or more