DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction (TO 12/2010): Description

WARNING: This page is about a different car, the 2011 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

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 vehicle speed based on the frequency of these pulse signals.

Fig 1: Speed Sensor Pulses Chart

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

DTC No.	DTC Detection Condition	Trouble Area
B2282	Cable and BEAN information between power source control ECU and combination meter are inconsistent	Power source control ECU Combination meter assembly Wire harness
B2283	The ECU detects either of the following: Over deceleration in vehicle speed The vehicle speed and the engine speed do not match	Speed sensor Power source control ECU Combination meter assembly Skid control ECU Each ECU Wire harness