Home Vehicle Interior Theft Deterrent/Keyless Entry ENGINE IMMOBILISER SYSTEM
Last Modified: 11-27-2007 1.6 S
Service Category: Vehicle Interior Section: Theft Deterrent/Keyless Entry
Model Year: 2008 Model: LX570 Doc ID: RM000002M6W009X
Title: THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DIAGNOSTIC TROUBLE CODE CHART (2008 LX570)

DIAGNOSTIC TROUBLE CODE CHART

1. CERTIFICATION ECU DTC CHART

HINT:

If a trouble code is output during the DTC check, check the circuit listed for that code in the table below. Then proceed to the "See page" below.

Certification ECU

DTC Code

Detection Item

Trouble Area

See page

B2784

Antenna Coil Open / Short

- Certification ECU (Smart key ECU assembly)

- Engine switch

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)

B278A

Short to GND in Immobiliser System Power Source Circuit

- Harness or connector

- ECM

- ID code box (Immobiliser code ECU)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)

B2790

ID BOX EEPROM Malfunction

ID code box (Immobiliser code ECU)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)

2. ECM DTC CHART

HINT:

The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the ECM.

ECM

DTC Code

Detection Item

Trouble Area

See page

B2799

Engine Immobiliser System Malfunction

- Harness or connector

- ECM

- ID code box (Immobiliser code ECU)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)

B279A

Theft Deterrent System Communication Line High Fixation

- Harness or connector

- ECM

- ID code box (Immobiliser code ECU)

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)

B279C

Theft Deterrent System Presence Detection

ECM

THEFT DETERRENT / KEYLESS ENTRY: ENGINE IMMOBILISER SYSTEM: DESCRIPTION (2008 LX570)