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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Headlamp LH Circuit (B2439,B243A)
DESCRIPTION This DTC is output when the headlight ECU sub-assembly receives an abnormal signal from the headlight unit. The headlight ECU sub-assembly LH outputs DTC B2439 and B243A DTC No. Detection Item DTC Detection Condition Trouble Area B2439 Headlamp LH Circuit Headlight ECU s
Installation
INSTALLATION PROCEDURE 1. INSTALL STEERING GEAR ASSEMBLY (a) Install the steering gear assembly to the front suspension crossmember with the 2 bolts and 2 nuts. Torque: 110 N·m {1122 kgf·cm, 81 ft·lbf} NOTICE:
Make sure to tighten the bolts starting from the left side of the vehicle.
Becaus
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