Power Tilt and Power Telescopic Steering Column System

STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: B2624: Vehicles Speed Malfunction
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.





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 Diagnosis System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM (SPEED SIGNAL)

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

Tilt & Telescopic





Result





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.

B -- CHECK COMBINATION METER SYSTEM How To Proceed With Troubleshooting

A -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal