Description
The steering angle sensor is connected to the ABS actuator and electric unit (control unit) in addition to CAN lines. CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads required data only.
DTC Logic
DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.

Diagnosis Procedure
1.CONNECTOR INSPECTION

C1155 BR fluid level low
U1000 CAN comm circuitBSW driving situations
Illustration 1 - Approaching from behind
Indicator
on
Indicator
off
Indicator
flashing
Another vehicle approaching from
behind
Illustration 1: The side BSW/RCTA indicator
light illuminates if a vehicle enters the detection
zone from behind in an adjacent lane.
Illustration 2 - ...
B2128 UART communication line
Description
Driver seat control unit performs UART communication with the automatic drive
positioner control unit using 1 communication line. Driver seat control unit
receives the operation signals of ADP steering switch, door mirror remote
control switch and the position signals of tilt sens ...
ABS branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the ABS actuator and
electric unit (control unit) for damage, bend
and loose connection (unit side and connector side).
...