LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2019 >> QX50 Essential, FWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B27D1: Start Cut Relay Off >> DTC Description >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No.

CONSULT screen items

(Trouble diagnosis content)

DTC detecting condition

B27D1-00

START CUT RELAY OFF

(Starter cut relay OFF)

Diagnosis condition

Ignition switch ON

Signal (terminal)

Starter cut relay signal

Threshold

When the starter relay/starter cut relay status signal transmitted from IPDM E/R via CAN communication is (OFF/OFF) after even though BCM is operating the starter cut relay ON output

Diagnosis delay time

1 second or more