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

READ NEXT:

 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

SEE MORE:

 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be dis

 Components

COMPONENTS ILLUSTRATION *A w/ Power Back Door *B w/o Power Back Door *1 BACK DOOR FINISH COVER LH *2 BACK DOOR FINISH COVER RH *3 BACK DOOR LOCK COVER *4 BACK DOOR SIDE GARNISH LH *5 BACK DOOR SIDE GARNISH RH *6 BACK DOOR TRIM BASE *7 BACK DOOR TRIM BOAR

© 2016-2026 Copyright www.lexunx.com