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Home >> Lexus >> 2017 >> ES 350 >> Repair and Diagnosis >> Electrical >> Starter >> Smart Access System (For Start Function) (Diagnostic Codes & Symptom Tests) >> Smart Access System With Push-Button Start (For Start Function) >> DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction (07/2015 -) >> Description
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DTC B2282: Vehicle Speed Signal Malfunction; DTC B2283: Vehicle Speed Sensor Malfunction (07/2015 -): Description

DTC B2282 is stored when the vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication do not match.

DTC B2283 is stored when a malfunction in the vehicle speed sensor is detected.

HINT: 

When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.

DTC Code DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2282 The vehicle speed signal sent by the combination meter assembly via direct line and the vehicle speed signal sent via CAN communication (1-trip detection logic*) do not match.
  • AM2 fuse
  • Meter/gauge system
  • Certification ECU (smart key ECU assembly)
  • Junction connector
  • Wire harness or connector
Drive the vehicle for 20 seconds at a vehicle speed of 25 km/h (16 mph) or more, and then drive the vehicle at a vehicle speed of less than 5 km/h (3 mph) for 20 seconds.
B2283 Either of the of the following malfunctions is detected (a vehicle speed sensor malfunction is detected) (1-trip detection logic*)
  • Vehicle speed signal malfunction detection 1: Excessive deceleration is detected
  • Vehicle speed signal malfunction detection 2: Engine speed linked detection
  • AM2 fuse
  • Meter/gauge system
  • Certification ECU (smart key ECU assembly)
  • Junction connector
  • Wire harness or connector
Run the engine at an engine speed of 2000 rpm or more for 330 seconds.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

DTC Code Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
B2282
  • When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle speed is 0 km/h (0 mph), there is no effect on vehicle behavior.
  • When the signal sent via either direct line or CAN communication is malfunctioning and indicates that the vehicle is moving, the engine switch cannot be turned from on (IG) to off.
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B2283
  • The power source mode is changed to off (the engine is stopped) by pressing the engine switch while the vehicle is being driven.
  • With the electrical key transmitter sub-assembly in the cabin, even if an engine start operation is performed, the engine does not start.
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