Description
EPS control unit receives the engine status signal from ECM via CAN communication line.
DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.DTC REPRODUCTION PROCEDURE
With CONSULT
Is DTC "C1610" detected?
YES >> Proceed to diagnosis procedure. Refer to STC "Diagnosis Procedure".
NO >> Inspection End.
1.PERFORM ECM SELF-DIAGNOSIS
With CONSULT
Is any DTC detected?
YES >> Check the DTC. Refer to EC "DTC Index".
NO >> GO TO 2.
2.PERFORM SELF-DIAGNOSIS
With CONSULT
Perform "EPS" self-diagnosis.
Is DTC "C1610" detected?
YES >> Replace EPS control unit. Refer to STC "Removal and Installation".
NO >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If any item are damaged, repair or replace malfunctioning components.
C1609 Vehicle speed signalDescription EPS control unit receives the vehicle speed signal from ABS actuator and electric unit (control unit) via CAN communication line. ...

Description 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 excelle ...
Engine control system symptoms
Symptom Table
SYSTEM - BASIC ENGINE CONTROL SYSTEM
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM - ENGINE MECHANICAL & OTHER
1 - 6: The numbers refer to the order of inspection. ...
U1117 Lost communication (ABS)
DTC Logic
DTC DETECTION LOGIC
DTC
Trouble diagnosis name
DTC detection condition
Possible causes
U1117
Lost Communication With ABS
When the ignition switch is ON,
TCM is unable to receive the
CAN communications signal
from ABS actuator control unit
cont ...