DTC B2282: Vehicle Speed Signal Correlation [11/2021 - ]: Procedure

1. Perform the diagnosis for CAN communication system.

   Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

   Is the check result OK?

   Result	Proceed to
   Yes	A
   No (Perform the inspection according to the diagnosis for CAN communication system.)	B

Result: 

B 

PERFORM THE INSPECTION ACCORDING TO THE DIAGNOSIS FOR CAN COMMUNICATION SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

A 

See step  2

1. Check that the speedometer is displayed normally.

   Is the meter display normal?

   Result	Proceed to
   Yes	A
   No (Check the VSC (VDC).)	B

Result: 

B 

CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ] 

Result: 

A 

See step  3

1. Turn the ignition switch to ON.
2. Using the GTS, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start(Power Supply)].

   Refer to DATA LIST / ACTIVE TEST [11/2021 - ]

   • Vehicle speed signal

   Is the display normal according to [Stopped status] or [Drive status]?

   Result	Proceed to
   Yes (Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.) HINT:  In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.	A
   No	B

Result: 

A 

END 

1. Even if DTC is displayed, the circuit has returned to a normal condition at this time.
2. Reproduce the failure, and then perform the diagnosis again.

   HINT: 

   In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.

Result: 

B 

See step  4

1. Turn the ignition switch to OFF.
2. Disconnect the connector from the smart key ECU assembly.
3. Disconnect the connector from the skid control ECU (brake actuator assembly).
4. Using a tester, measure the resistance between the smart key ECU assembly connector and skid control ECU (brake actuator assembly) connector.

   Connector & terminal

   F8-7 (SPD1) - A6-10 (VSO2)

   Is the resistance less than 1 Ω?

   Result	Proceed to
   Yes	A
   No (Repair or replace the open circuit of harness.)	B

Result: 

B 

REPAIR OR REPLACE THE OPEN CIRCUIT OF HARNESS 

Result: 

A 

See step  5

1. Using a tester, measure the resistance between the smart key ECU assembly connector and chassis ground.

   Connector & terminal

   F8-7 (SPD1) - Chassis ground

   Is the resistance 30 kΩ or more?

   Result	Proceed to
   Yes	A
   No (Repair or replace the short circuit of the harness.)	B

Result: 

B 

REPAIR OR REPLACE THE SHORT CIRCUIT OF THE HARNESS 

Result: 

A 

See step  6

1. Connect the disconnected connectors.
2. Using an oscilloscope, measure the waveform between the smart key ECU assembly connector and chassis ground.

   Connector & terminal

   F8-7 (SPD1) - Chassis ground

   Is 3.54 Hz displayed when the vehicle is driven approx. at 5 km/h (3 MPH)? Or does the value change from 3.54 Hz when the vehicle stops?

   Result	Proceed to
   Yes (Replace the smart key ECU assembly.)	A
   No (Check the VSC (VDC).)	B

Result: 

A 

REPLACE SMART KEY ECU ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

Result: 

B 

CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]