DTC B2621 Communication Interruption
for Preparation Click here
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 it is connected to the network by outputting a specified signal (periodic signal) to the communication bus on a regular schedule. The multiplex
tilt and telescopic ECU detects the connection of each ECU based on the signal.
DTC Code Detection Condition Trouble Area
B2621 The periodic signal from a specified ECU has stopped.
CAN communication system
Multiplex tilt and telescopic ECU
INSPECTION PROCEDURE
1.CHECK DTC (CAN COMMUNICATION SYSTEM)
a. Check for DTCs of the CAN communication system ( Click here).
Result
Result Proceed to
DTC is not output A
DTC is output for LHD B
DTC is output for RHD C
B
GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC
TROUBLE CODE CHART) (Click here)
C
GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC
TROUBLE CODE CHART) (Click here)
A
REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ( Click here)
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