DTC B2282-31: Vehicle Speed Signal Circuit Open [10/2022 - ]: Procedure

1. Check vehicle control history (RoB)
   1. Using the GTS, check for vehicle control history (RoB).

      Body Electrical > Navigation System > Utility 

      Tester Display
      Vehicle Control History (RoB)

      Result

      Result	Proceed to
      Vehicle control history (RoB) X8023 is output	A
      Vehicle control history (RoB) is not output	B

Result: 

B 

See step  4

Result: 

A 

See step  2

1. Check that optional components are not installed.

   Result

   Result	Proceed to
   Optional components are installed	A
   Optional components are not installed	B

Result: 

B 

See step  4

Result: 

A 

See step  3

1. Remove optional components.
2. Turn the ignition switch off and back to ON.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

Pre-procedure1

• Enter diagnostic mode.

  HINT: 

  For enter diagnostic mode and screen transition, refer to Refer to DIAGNOSIS SYSTEM [10/2022 - ]

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  1. Enter diagnostic mode.
  2. Select "Function Check/Setting" from the "Service Menu" screen.
  3. Select "System Sensors Check" from the "Function Check/Setting I" screen.

• System sensors check
  1. Drive the vehicle and confirm that the displayed Speed changes in accordance with the vehicle driving condition.

     Result

     Result	Proceed to
     Speed changes	A
     Speed does not change	B

Post-procedure1

• None

Result: 

A 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Result: 

B 

See step  5

Pre-procedure1

• Disconnect the C18 combination meter assembly connector.
• Disconnect the C1 radio and display receiver assembly connector.

• Measure the resistance according to the value(s) in the table below.

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  C18-8 (+S) - C1-8 (SPD)	Always	Below 1 Ω	Ω
  C18-8 (+S) or C1-8 (SPD) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

GO TO METER / GAUGE SYSTEM. Refer to  Speed Signal Circuit [10/2022 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR