DTC B2283 Vehicle Speed Sensor Malfunction: Description

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 main body ECU. The main body ECU determines the vehicle speed based on the frequency of these pulse signals.

HINT:

When the main body ECU is replaced with a new one and the negative (-) battery terminal is connected, the power source mode becomes the IG-ON mode. When the battery is removed and reinstalled, the power source mode that was selected when the battery was removed is restored.

After the main body ECU is replaced, perform the registration procedures for the engine immobiliser system (See REGISTRATION ).

DTC DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2283	When both conditions below are met: Over-deceleration in vehicle speed Vehicle speed and engine speed do not match	DTC B2282 detection area Combination meter Speed sensor Skid control ECU Main body ECU Wire harness or connector

Fig 1: Speed Sensor Pulse Diagram