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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Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)
DESCRIPTION If the vehicle information stored in the forward recognition camera does not match the vehicle information sent from the main body ECU (multiplex network body ECU), the forward recognition camera stores DTC U032257. DTC No. Detection Item DTC Detection Condition Trouble Area D
Installation
INSTALLATION PROCEDURE 1. INSTALL NO. 4 FUEL TUBE CLAMP (a) Install the 5 No. 4 fuel tube clamps to the fuel tank assembly as shown in the illustration. 2. INSTALL FUEL TANK MAIN TUBE SUB-ASSEMBLY (a) Connect the 5 clamps and install the fuel tank main tube sub-assembly to the 5 No. 4
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