DTC B2624: Vehicles Speed Malfunction: Description

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

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 it is connected to the network by outputting 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 via the communication bus to prevent improper operation of the auto away/return function during driving

DTC DETECTION ITEM AND TROUBLE AREA

DTC No.	Detection Item	Trouble Area
B2624	The auto away function is disabled with the last vehicle speed signal*1 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	Multiplex communication system Combination meter Multiplex tilt and telescopic ECU
HINT: *1: 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)