Home › Vehicle Interior › Theft Deterrent/Keyless Entry › SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function)
Last Modified: 11-27-2007 1.6 C
Service Category: Vehicle Interior Section: Theft Deterrent/Keyless Entry
Model Year: 2008 Model: LX570 Doc ID: RM000000YD4034X
Title: THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): DESCRIPTION (2008 LX570)

DTC

B2286

Runnable Signal Malfunction

DESCRIPTION

The main body ECU and ECM are connected by a cable and the CAN communication line. If the cable information and CAN information are inconsistent, this DTC is stored.

DTC Code

Detection Condition

Trouble Area

B2286

The cable and CAN information between the main body ECU and ECM is inconsistent.
  • Main body ECU
  • ECM
  • Harness or connector

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

READ VALUE USING TECHSTREAM (ENGINE CONDITION)

(a) Use the Data List to check if the engine start is functioning properly.

Main Body

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Engine Condition

Engine condition/Stop or Run

Stop: Engine stopped

Run: Engine running

-

Result

Result

Proceed to

Display on the Techstream does not change according to engine condition

A

Display on the Techstream changes according to engine condition

B
A

2.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)


(a) Disconnect the E3 main body ECU connector.

(b) Disconnect the A38 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

E3-8 (TACH) - A38-15 (TACH)

Always

Below 1 Ω

E3-8 (TACH) or A38-15 (TACH) - Body ground

Always

10 kΩ or higher
OK

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 B2286 is output.

OK:

No DTC is output.

OK