LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> QX30 Base >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC B18B9: Power Window Main Switch (Power Window Lock Switch) >> RH >> DTC Description >> DTC Detection Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Detection Logic

DTC No. CONSULT screen terms DTC detection condition
(Trouble diagnosis name) [Malfunction type]
B18B9 2A Power window lock switch
(Power window lock switch)
[SIGNAL STUCK IN RANGE] Diagnosis Turn ignition switch ON
Signal (terminal) Power window switch signal (LIN communication)
Threshold Power window main switch (power window lock switch) has a malfunction. There is no signal change (stuck at ON position).
Diagnosis delay time 25 seconds