B2621

STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: B2621: Communication Interruption

DTC B2621 - Communication Interruption

DESCRIPTION

The multiplex tilt and telescopic ECU is part of a network of ECUs from other systems. All of the ECUs are connected through the communication bus. Each ECU periodically sends signals through the communication bus to inform other network ECUs of its presence.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (TILT AND TELESCOPIC MANUAL SWITCH)
(a) Check the Data List for proper functioning of the tilt and telescopic steering switch.

Multiplex tilt and telescopic ECU





OK:
ON (switch is pressed) appears on the screen.
NG -- REPLACE COMBINATION SWITCH
OK -- REPLACE MULTIPLEX TILT AND TELESCOPIC ECU