POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM, Diagnostic DTC:B2624

DTC Code DTC Name
B2624 Vehicles Speed Malfunction

DESCRIPTION

The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems via CAN communication. Each ECU informs the other ECUs that it is connected to the network by sending a specified signal (periodic signal) onto the communication bus on a regular basis. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter assembly via the CAN communication bus to prevent improper operation of the auto away/return function while driving.

DTC No. Detection Item Trouble Area
B2624

  • The auto away function is disabled with the last vehicle speed signal* of 10 km/h (6 mph) or more.

  • The vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled.

  • CAN communication system

  • Meter / gauge system

  • Multiplex tilt and telescopic ECU

*: If the engine switch is turned off immediately after the vehicle comes to a sudden stop, the last vehicle speed signal may not be 0 km/h (0 mph).

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Check for DTCs Click here.

      OK
      DTC is not output.

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER (FREEZE SPEED INFO)


    1. Turn the engine switch off.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the engine switch on (IG).

    4. Turn the intelligent tester on.

    5. Check the vehicle speed signal on the intelligent tester. Enter the following menus: Body / Tilt & Telescopic / Data List.

      Tilt & Telescopic
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Freeze Speed Info

      Vehicle speed data/

      Min.: 0 km/h (0 mph)

      Max.: 255 km/h (158 mph)

      		 Stop → Drive → Stop 0 km/h (0 mph) → Same speed as indicated on speedometer → 0 km/h (0 mph)
      Result
      Result Proceed to
      Intelligent tester indication is normal. A
      Intelligent tester indication is abnormal. B

      Tech Tips

      A vehicle speed of 3 km/h (2 mph) or more may be displayed on the intelligent tester immediately after the vehicle comes to a sudden stop. This is caused by a delay in vehicle signal received via CAN communication and is not a malfunction.


    B

    GO TO METER / GAUGE SYSTEM Click here

    A

    REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Click here