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Home >> Lexus >> 2010 >> RX 350 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Smart Access System With Push-Button Start (For Start Function) (Diagnostic Codes & Symptom Tests)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> DTC B2283: Vehicle Speed Sensor Malfunction >> Description
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DTC B2283: Vehicle Speed Sensor Malfunction: Description

WARNING: This page is about a different car, the 2011 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

The skid control ECU converts wheel speed sensor 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 management control ECU. The power management control ECU determines the vehicle speed based on the frequency of these pulse signals.

DTC No. DTC Detection Condition Trouble Area
B2283 Both conditions are met:
  • Over-deceleration in vehicle speed
  • Vehicle speed and engine speed do not match
  • AM2 fuse
  • Combination meter assembly
  • Power management control ECU
  • Wire harness or connector