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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Smart Key System (For Start, HV) - Diagnostic Codes (1 Of 2)) >> SMART KEY SYSTEM (for Start Function, HV Model) >> DTC B2282-31: Vehicle Speed Signal Circuit Open; DTC B2282-62: Vehicle Speed Signal Compare Failure [11/2023 - ] >> Description

DTC B2282-31: Vehicle Speed Signal Circuit Open; DTC B2282-62: Vehicle Speed Signal Compare Failure [11/2023 - ]: Description

WARNING: This page is about a different variant/trim than selected.

DTC B2282-31 is stored when the vehicle speed signal sent by the No. 2 skid control ECU via direct line and the vehicle speed signal sent via CAN communication do not match.

DTC B2282-62 is stored when a malfunction in the vehicle speed sensor is detected.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B2282-31 Vehicle Speed Signal Circuit Open Vehicle speed signal malfunction is detected (excessive deceleration is detected). (1-trip detection logic*)
  • Electronically controlled brake system
  • Certification ECU (smart key ECU assembly)
  • Wire harness or connector
 DTC Output Confirmation Operation: 
  1. Drive the vehicle at a vehicle speed of 25 km/h (16 mph) or more for 20 seconds, and then drive the vehicle at a vehicle speed of less than 5 km/h (3 mph) for 20 seconds.
B2282-62 Vehicle Speed Signal Compare Failure The vehicle speed signal sent by the No. 2 skid control ECU via direct line and the vehicle speed signal sent via CAN communication do not match. (1-trip detection logic*)
  • Electronically controlled brake system
  • Certification ECU (smart key ECU assembly)
  • Wire harness or connector
 DTC Output Confirmation Operation: 
  1. Drive the vehicle at a vehicle speed of 50 km/h (31 mph) or more for 10 seconds, and then drive the vehicle at a vehicle speed of less than 50 km/h (31 mph).
  1. *: Only detected while a malfunction is present and the ignition switch is ON.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED

DTC Code Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
B2282-31
  • The power source mode is changed to off (the hybrid control system is stopped) by pressing the power switch while the vehicle is being driven.
  • With the electrical key transmitter sub-assembly in the cabin, even if a hybrid control system start operation is performed, the hybrid control system will not start.
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B2282-62
  • 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 ignition switch cannot be turned from ON to off.
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RELATED DATA LIST AND ACTIVE TEST ITEMS

DTC No. Data List and Active Test
B2282-31
B2282-62		 Power Source Control 
  • Vehicle Running Condition (Line)
  • Power Supply Condition

Brake/EPB 

  • Vehicle Speed
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