Toyota Venza manuals

Toyota Venza: LIN Communication Master Malfunction (B2287)

Toyota Venza Service Manual / Networking / Lin Communication System / LIN Communication Master Malfunction (B2287)

DESCRIPTION

This DTC is stored when there is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).

DTC No.

DTC Detection Condition

Trouble Area

B2287

There is an open, short or ECU communication malfunction between the power management control ECU and certification ECU (smart key ECU assembly).

  • Power management control ECU
  • Certification ECU (Smart key ECU assembly)
  • Wire harness or connector

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

  • If the certification ECU (smart key ECU assembly) is replaced, register the key.
  • When using the Techstream to troubleshoot with the ignition switch off:

    Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.

PROCEDURE

1.

CHECK DTC OUTPUT

(a) Clear the DTC (See page ).


(b) Recheck for DTCs.

HINT:

Check for certification ECU and power source control ECU DTCs.

Result

Proceed to

Only DTC B2287 is output.

A

DTC B2287 and B2785 are output simultaneously.

B

HINT:

When DTC B2287 and B2785 are output simultaneously, perform troubleshooting for DTC B2785 first.


B

GO TO DTC B2785


A

2.

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - POWER MANAGEMENT CONTROL ECU)

(a) Disconnect the D25 and D43 ECU connectors.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D25-29 (LIN) - D43-24 (LIN2)

Always

Below 1 Ω

D25-29 (LIN) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

Front view of wire harness connector

(to Certification ECU (Smart Key ECU Assembly)

*2

Front view of wire harness connector

(to Power Management Control ECU)


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

3.

REPLACE POWER MANAGEMENT CONTROL ECU

(a) Replace the power management control ECU (See page ).



NEXT

4.

CHECK DTC OUTPUT

(a) Clear the DTC (See page ).


(b) Recheck for DTCs.

OK:

DTC B2287 is not output.


OK

END (POWER MANAGEMENT CONTROL ECU WAS DEFECTIVE)


NG

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

Sliding Roof ECU Communication Stop (B1273)
DESCRIPTION This DTC is stored when LIN communication between the sliding roof ECU (sliding roof drive gear sub-assembly) and main body ECU (driver side junction block assembly) stops for more th ...

Lost Communication with AFS LIN (B124D)
DESCRIPTION Refer to DTC B124D (Lighting system) (See page ). DTC No. DTC Detection Condition Trouble Area B124D Malfunctions in LIN co ...

Other materials about Toyota Venza:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT DISCHARGE HEADLIGHT BULB NOTICE: Confirm the following items before replacing a discharge headlight bulb. If a malfunction is discovered and repaired, perform the inspection again to confirm the repair. ...

Do-it-yourself service precautions
If you perform maintenance yourself, be sure to follow the correct procedure given in these sections. CAUTION The engine compartment contains many mechanisms and fluids that may move suddenly, become hot, or become electrically energized. To avoid de ...

Inspection
INSPECTION PROCEDURE 1. INSPECT UNIVERSAL JOINT SPIDER ASSEMBLY (a) Check the spider bearing axial play by turning the flange while holding the shaft tightly. HINT: If necessary, replace the propeller with center bearing shaft assembly. ...

© 2016-2020 Copyright www.tovenza.com

0.1885