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

HINT: 

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

1. Enter diagnostic mode.

   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.
2. 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

Result: 

A 

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]

Result: 

B 

See step  5

1. Disconnect the H21*2, H112*1 combination meter assembly connector.
2. Disconnect the H107 radio and display receiver assembly connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H21-6 (+S) - H107-8 (SPD)*2	Always	Below 1 Ω
   H112-8 (+S) - H107-8 (SPD)*1	Always	Below 1 Ω
   H21-6 (+S) or H107-8 (SPD) - Body ground*2	Always	10 kΩ or higher
   H112-8 (+S) or H107-8 (SPD) - Body ground*1	Always	10 kΩ or higher

   1. *1: for 12.3 Inch Display

      *2: except 12.3 Inch Display

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO METER / GAUGE SYSTEM 

except 12.3 Inch Display: Refer to Speed Signal Circuit [10/2022 - 11/2023] , or refer to Speed Signal Circuit [11/2023 - ]

for 12.3 Inch Display: Refer to Speed Signal Circuit [10/2022 - 11/2023] , or refer to Speed Signal Circuit [11/2023 - ]

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR