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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Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. PRECAUTION Click here 2. REMOVE FRONT DOOR TRIM COVER LH Click here 3. REMOVE FRONT DOOR INSIDE HANDLE BEZEL PLUG LH Click here 4. REMOVE
Installation
INSTALLATION PROCEDURE 1. INSTALL EXHAUST PIPE DAMPER (a) Install the exhaust pipe damper with the 2 bolts. Torque: 19 N·m {194 kgf·cm, 14 ft·lbf} 2. INSTALL HEATED OXYGEN SENSOR Click here 3. INSTALL FRONT EXHAUST PIPE ASSEMBLY (a) Using a vernier caliper, measure the free length of the co
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