Lexus NX: Diagnosis System
Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Theft Deterrent System / Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
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INSPECT AUXILIARY BATTERY VOLTAGE
(a) Measure the auxiliary battery voltage with the power switch off.
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the auxiliary battery.
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Engine Hood Courtesy Switch Circuit
DESCRIPTION The engine hood courtesy switch is installed together with the hood lock. This switch turns on when the engine hood is closed and turns off when the engine hood is opened. WIRING DIAGRAM
Horn Circuit
DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the horn to sound a
Security Horn Circuit
DESCRIPTION When the theft deterrent system is switched from the armed state to the alarm sounding state, the main body ECU (multiplex network body ECU) transmits a signal to cause the security horn t
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Installation
INSTALLATION PROCEDURE 1. INSTALL WINDSHIELD WIPER RELAY ASSEMBLY (a) Attach the 2 claws to install the windshield wiper relay assembly. 2. INSTALL ECU INTEGRATION BOX RH Click here 3. INSTALL NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Click here 4. INSTALL GLOVE COMPARTMENT DOOR ASSEMBLY C
Steering Vibrator Component Internal Failure (C1A7496)
DESCRIPTION If the forward recognition camera receives a steering vibration ECU malfunction signal, DTC C1A7496 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A7496 Steering Vibrator Component Internal Failure 3 seconds after the power switch is turned on (
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