Lexus NX manuals

Lexus NX: Diagnostic Trouble Code Chart

Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Immobiliser System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Immobiliser System

DTC No.

Detection Item

Link

B2779

Engine Starter Communication Malfunction

B2784

Antenna Coil Open / Short

B278A

Short to GND in Immobiliser System Power Source Circuit

B2790

ID BOX EEPROM Malfunction

B2799-790

Engine Immobiliser System Malfunction

B279A-186

Engine Immobiliser System Communication Line High Fixation

B279C-185

Engine Immobiliser System Presence Detection

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 Engine Starter Communication Malfunction (B2779)

DESCRIPTION If the remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered*, this DTC is stored. If communication bet

 Antenna Coil Open / Short (B2784)

DESCRIPTION When an open or short circuit is detected in the transponder key amplifier coil built into the power switch, the certification ECU (smart key ECU assembly) stores this DTC. This DTC is als

 Short to GND in Immobiliser System Power Source Circuit (B278A)

DESCRIPTION When there is a short to GND in the power supply for the transponder key amplifier of the power switch, the certification ECU (smart key ECU assembly) stores this DTC. DTC No. Detecti

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 Do-it-yourself service precautions

If you perform maintenance by yourself, be sure to follow the correct procedure as given in these sections. Maintenance Items Parts and tools 12-volt battery condition Grease Conventional wrench (for terminal clamp bolts) Brake flui

 Installation

INSTALLATION PROCEDURE 1. INSTALL FRONT SEAT INNER BELT ASSEMBLY LH (a) Install the front seat belt anchor plate. (b) Install the front seat inner belt assembly LH with the nut. Torque: 42 N·m {428 kgf·cm, 31 ft·lbf} NOTICE: Do not allow the anchor part of the front seat inner belt assembly L

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