B2624

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 a regular basis. 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 power 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

(a) Check if DTC B2621 is output Power Tilt and Power Telescopic Steering Column System.

Result





B -- REPAIR CIRCUIT INDICATED BY OUTPUT CODE B2621
A -- Continue to next step.

2. READ VALUE USING THE TECHSTREAM (SPEED SIGNAL)

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

Tilt & Telescopic





OK:

The vehicle speed displayed on the Techstream changes depending on the actual vehicle speed.

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.

NG -- GO TO METER / GAUGE SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) How To Proceed With Troubleshooting

OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU Removal