THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): DESCRIPTION (2008 LX570)

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Last Modified: 11-27-2007		1.6 C
Service Category: Vehicle Interior	Section: Theft Deterrent/Keyless Entry
Model Year: 2008	Model: LX570	Doc ID: RM000002AKM00EX
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): DESCRIPTION (2008 LX570)

DTC

B2289

Key Collation Waiting Time Over

DESCRIPTION

This DTC is stored when there is a LIN communication problem between the main body ECU and certification ECU (smart key ECU assembly) or when there is a problem in the engine immobiliser system.

DTC Code	Detection Condition	Trouble Area
B2289	When either of the following conditions is met: Communication or the communication line among the main body ECU, certification ECU (smart key ECU assembly), steering lock ECU and ID code box (immobiliser code ECU) is abnormal. The immobiliser system malfunctions.	Main body ECU Engine switch Certification ECU (Smart key ECU assembly) Key Engine immobiliser system Harness or connector

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.	CHECK WHETHER DTC OUTPUT RECURS

(a) Clear the DTCs .

(b) Check whether DTC B2289 is output.

Result

Result	Proceed to
DTC B2289 output	A
No DTC output	B

2.	CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))

(a) Disconnect the 2D main body ECU connector.

(b) Disconnect the E29 certification ECU (smart key ECU assembly) connector.

Standard Resistance:

Tester Connection	Condition	Specified Condition
2D-20 (LIN1) - E29-10 (LIN)	Always	Below 1 Ω
2D-20 (LIN1) or E29-10 (LIN) - Body ground	Always	10 kΩ or higher

3.	REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)

(a) Temporarily replace the main body ECU with a new or normally functioning one.

(b) Check whether DTC B2289 is output.

OK:

No DTC is output.