Last Modified: 11-29-2007 1.6 C
Service Category: Steering Section: Steering Column
Model Year: 2008 Model: Sequoia Doc ID: RM000000ZDY016X
Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: DESCRIPTION (2008 Sequoia)

DTC

B2624

Vehicles Speed Malfunction

DESCRIPTION

The multiplex tilt and telescopic ECU forms a network with the ECUs of other systems through the communication bus. Each ECU informs the other ECUs that they are connected to the network by outputting a specified signal (periodic signal) to the communication bus at regular intervals. The multiplex tilt and telescopic ECU receives vehicle speed signals from the combination meter via the communication bus to prevent improper operation of the auto away/return function during driving.

DTC Code

Detection Condition

Trouble Area

B2624

When either condition below is met:

  • The auto away function is disabled with the last vehicle speed signal* of 10 km/h (6 mph) or more.
  • Vehicle speed signal is lost for 5 seconds or more and the auto away/return function is disabled.
  • CAN communication system
  • Combination meter
  • Multiplex tilt and telescopic ECU

HINT:

*: If the ignition 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 CAN COMMUNICATION SYSTEM

(a) Check the DTC of the CAN communication system NETWORKING: CAN COMMUNICATION SYSTEM: DIAGNOSIS SYSTEM (2008 Sequoia) .

Result

Result

Proceed to

DTC is not output

A

DTC is output

B
A

2.

READ VALUE USING TECHSTREAM (SPEED SIGNAL)

(a) Use the Data List to check if the speed signal is functioning properly.

Tilt & Telescopic

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Freez Speed Info

Vehicle speed data / min.: 0 km/h (0 mph), max.: 255 km/h (158 mph)

Actual vehicle speed

-

Result

Result

Proceed to

OK or NG (Tester indication is abnormal)

A

NG (Meter indication is abnormal)

B

HINT:

Vehicle speed of 3 km/h (2 mph) or more may be displayed on the Techstream screen immediately after the vehicle comes to a sudden stop. This is caused by a delay in vehicle signal input via the communication bus and is not a malfunction.

A