B2283

2GR-FSE STARTING: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: B2282,B2283: Vehicle Speed Signal Malfunction
B2283 - Vehicle Speed Sensor Malfunction

DESCRIPTION

The power source control ECU and the combination meter are connected by a cable and the BEAN. DTC B2282 is output when: 1) the cable information and BEAN information are inconsistent; and 2) a malfunction is detected between the vehicle speed sensor and combination meter.





The skid control ECU converts these signals into 4-pulse signals and sends them to the combination meter. After this signal is converted into a more precise rectangular waveform by the waveform shaping circuit inside the combination meter, it is then transmitted to the power source control ECU. The power source control ECU determines the vehicle speed based on the frequency of these pulse signals.









WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (VEHICLE SPEED SIGNAL)

(a) Check the DATA LIST for proper functioning of the vehicle speed signal.

Power source control ECU:





OK:

STOP (vehicle is stopped) appears on screen.

NG -- CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU － COMBINATION METER)

OK -- REPLACE POWER SOURCE CONTROL ECU

2. CHECK WIRE HARNESS (POWER SOURCE CONTROL ECU － COMBINATION METER)

(a) Disconnect the K73 ECU connector.





(b) Disconnect the K31 meter connector.

(c) Measure the resistance of the wire harness side connectors.

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- Continue to next step.

3. CHECK AND REPLACE POWER SOURCE CONTROL ECU

(a) Temporarily replace the power source control ECU with a new or normally functioning one.

(b) Check that the engine starts normally.

OK:

Engine starts normally.

NG -- GO TO COMBINATION METER SYSTEM

OK -- REPLACE POWER SOURCE CONTROL ECU