DTC    B2282    Vehicle Speed Signal Malfunction

DTC    B2283    Vehicle Speed Sensor Malfunction

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DESCRIPTION

The main body ECU and the combination meter are connected with a cable and the CAN communication line. DTC B2282 is output when signals, transmitted through the cable and the communication line, do not match.

DTC Code
Detection Condition
Trouble Area
B2282
Following conditions are met:
  1. Signals between main body ECU and combination meter are inconsistent
  1. Malfunction is detected in circuit between vehicle speed sensor and combination meter
  1. Main body ECU
  1. Combination meter
  1. Wire harness or connector
The skid control ECU converts these signals into 4-pulse signals and sends them to the combination meter. After these signals are converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, they are then transmitted to the main body ECU. The main body ECU determines the vehicle speed based on the frequencies of these pulse signals.

DTC Code
Detection Condition
Trouble Area
B2283
When both conditions below are met:
  1. Vehicle speed decreases significantly
  1. Vehicle speed does not correspond with engine speed
  1. Main body ECU
  1. Combination meter
  1. Speed sensor
  1. Skid control ECU
  1. Wire harness or connector

A155385E01


WIRING DIAGRAM


A149409E01


INSPECTION PROCEDURE

1.READ VALUE OF INTELLIGENT TESTER (VEHICLE SPEED SIGNAL)

  1. Use the Data List to check if the vehicle speed signal is functioning properly.

    Main body ECU 
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    Vehicle Speed Signal
    		Vehicle speed signal/STOP or RUN
    		STOP: Vehicle is stopped
    RUN: Vehicle is running
    		-

OK:
STOP appears on screen.



NG
REPLACE MAIN BODY ECU
OK


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

A150034E01

  1. Disconnect the L11 main body ECU connector.

  1. Disconnect the L10 combination meter connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L11-9 (SPD) - L10-10 (+S)
    		Always
    		Below 1 Ω
    L11-9 (SPD) or L10-10 (+S) - 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 COMBINATION METER SYSTEM (Нажмите здесь)
OK

END (MAIN BODY ECU IS FAULTY)