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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Installation
INSTALLATION PROCEDURE 1. INSTALL TRANSMISSION OIL COOLER ASSEMBLY (a) Insert the stud bolts E through the transmission oil cooler assembly. *a Torque Wrench Fulcrum Length (b) Temporarily install the transmission oil cooler assembly and a new gasket with the flare nut B a
Removal
REMOVAL CAUTION / NOTICE / HINT CAUTION: Wear protective gloves. Sharp areas on the parts may injure your hands. HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. REMOVE FRONT SEAT ASSEMBLY LH Click here 2. REMOVE FRONT LOWER
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