B2282

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

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.





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.









WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING THE TECHSTREAM (VEHICLE SPEED SIGNAL)

(a) Use the Data List to check if the vehicle speed signal is functioning properly.

Main Body





Result





B -- REPLACE MAIN BODY ECU
A -- Continue to next step.

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





(a) Disconnect the L11 main body ECU connector.

(b) Disconnect the L10 Combination meter connector.

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

Standard resistance:





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

3. REPLACE MAIN BODY ECU

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

(b) Check whether DTC B2282 and B2283 recur.

OK:

No DTC is output.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- END (MAIN BODY ECU IS FAULTY)