Dtc B2624 Vehicles Speed Malfunction

Steering. Land Cruiser. Urj200, 202 Grj200 Vdj200
Steering Column. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

INSPECTION PROCEDURE

CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

READ VALUE USING GTS (FREEZE SPEED INFO)

DTC 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
  1. The auto away function is disabled with the last vehicle speed signal* of 10 km/h (6 mph) or more.
  2. The vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled.
  1. CAN communication system
  2. Meter / gauge system
  3. 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

1.CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

  1. Check for DTCs.

    1. CAN communication system (for LHD with central gateway ECU) (Click here).
    2. CAN communication system (for LHD without central gateway ECU) (Click here).
    3. CAN communication system (for RHD with central gateway ECU) (Click here).
    4. CAN communication system (for RHD without central gateway ECU) (Click here).
    OK:
    DTC is not output.
    Result
    Result
    		Proceed to
    OK
    		A
    NG
    		for LHD (with Central Gateway ECU)
    		B
    for LHD (without Central Gateway ECU)
    		C
    for RHD (with Central Gateway ECU)
    		D
    for RHD (without Central Gateway ECU)
    		E


B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)

C
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)

D
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)

E
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)
A


2.READ VALUE USING GTS (FREEZE SPEED INFO)

  1. Turn the engine switch off.

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Check the vehicle speed signal on the GTS. Enter the following menus: Body Electrical / 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)
    		Actual vehicle speed
    		-
    Result
    Result
    		Proceed to
    GTS indication is normal.
    		A
    GTS indication is abnormal.
    		B

    HINT:
    1. A vehicle speed of 3 km/h (2 mph) or more may be displayed on the GTS 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.
    2. If the vehicle is suddenly stopped and the engine switch is immediately turned off, resulting in the last vehicle speed signal received by the multiplex tilt and telescopic ECU to be 10 km/h (6 mph) or more, a vehicle speed malfunction DTC is stored.


B
GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) (Click here)
A

REPLACE MULTIPLEX TILT AND TELESCOPIC ECU (Click here)