DTC U3003:17 [EPS CONTROL MODULE]

id060230810100

DTC
U3003:17
Battery power supply
DETECTION CONDITION
•  Voltage of 18 V or more detected by EPS control module internal battery voltage observation
FAIL-SAFE FUNCTION
•  Power steering malfunction indicator light Illuminates
•  EPS motor current control disabled
POSSIBLE CAUSE
•  Generator malfunction
•  Poor connection at each connector
SYSTEM WIRING DIAGRAM
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Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT GENERATOR
•  Inspect the generator.
•  Is there any malfunction?
Yes
Replace the generator, then go to Step3.
(See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (SKYACTIV-G 1.3, SKYACTIV-G 1.5)].)
(See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (SKYACTIV-D 1.5)].)
No
Go to the next step.
2
INSPECT WHETHER MALFUNCTION IS CAUSED BY POOR CONNECTION OF EPS CONTROL MODULE OR PIN DEFORMATION
•  Switch the ignition OFF.
•  Inspect connection of the EPS control module and wiring harness.
•  Disconnect the EPS control module connector.
•  Inspect whether malfunction is caused by poor connection of EPS control module or pin deformation.
•  Are the connector connection, connector pins, and wiring harness normal?
Yes
Go to the next step.
No
Repair or replace the faulty connector wiring harness, then go to the next step.
3
VERIFY DTC TROUBLESHOOTING COMPLETED
•  Using the M-MDS, clear the DTC from the EPS control module.
•  Using the M-MDS, perform the EPS control module DTC inspection.
•  Is the same DTC present?
Yes
If the malfunction recurs, replace the steering column, then go to the next step.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
No
Go to the next step.
4
VERIFY NO DTC IS PRESENT
•  Are any DTCs present?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [EPS CONTROL MODULE].)
No
DTC troubleshooting completed.