DTC    B2286    Runnable Signal Malfunction

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DESCRIPTION

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

DTC Code
Detection Condition
Trouble Area
B2286
Cable and CAN information between main body ECU and ECM are inconsistent
  1. Main body ECU
  1. SFI system
  1. Wire harness or connector

WIRING DIAGRAM


A150165E01


INSPECTION PROCEDURE

1.READ VALUE OF INTELLIGENT TESTER (ENGINE CONDITION)

  1. Use the Data List to check if the engine condition is functioning properly.

    Main body ECU 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Engine Condition
    		Engine condition/RUN or STOP
    		RUN: Engine running
    STOP: Engine stopped
    		-

OK:
When the engine is running, RUN is displayed on the tester.



NG
REPLACE MAIN BODY ECU
OK


2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - ECM)

A150035E01

  1. Disconnect the L11 main body ECU connector.

  1. Disconnect the A14 ECM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L11-8 (TACH) - A14-15 (TACH)
    		Always
    		Below 1 Ω
    L11-8 (TACH) or A14-15 (TACH) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK MAIN BODY ECU (OPERATION)

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

  1. Check that the engine starts normally.

    OK:
    Engine starts normally.



NG
GO TO SFI SYSTEM (Нажмите здесь)
OK

END (MAIN BODY ECU IS FAULTY)