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.
READ NEXT:
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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Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure (C1A8C46,C1A8D1C,C1A9000,C1A9100)
DESCRIPTION When an internal malfunction is detected in the millimeter wave radar sensor assembly, a DTC is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A8C46 Main Microcomputer in Front Radar Sensor Calibration/Parameter Memory Failure When the power switch
System Description
SYSTEM DESCRIPTION POWER BACK DOOR SYSTEM DESCRIPTION (a) The power back door system controls the power back door by automatically opening and closing the power back door with a motor. (1) The power back door system operates only when the necessary conditions are met. (2) The multiplex network door
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