DTC U3003:17 [ELECTRIC POWER STEERING (EPS)]

id0602a1810100

DTC U3003:17	Battery power supply
DETECTION CONDITION	•  Voltage of 17.5 V or more detected by EPS control module internal battery voltage observation.
FAIL-SAFE FUNCTION	•  Refer to “Fail-safe Function Table”. (See DTC TABLE [ELECTRIC POWER STEERING (EPS)].)
POSSIBLE CAUSE	•  Generator malfunction •  Poor connection at connectors •  EPS control module malfunction
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic Procedure

Step	Inspection		Action
1	INSPECT GENERATOR •  Inspect the generator and drive belt. (See GENERATOR INSPECTION [WITHOUT i-ELOOP (SKYACTIV-D 2.2)].) (See GENERATOR INSPECTION [SKYACTIV-G 2.5T].) (See GENERATOR INSPECTION [WITHOUT i-ELOOP (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))].) (See GENERATOR INSPECTION [WITHOUT i-ELOOP (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))].) (See GENERATOR INSPECTION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) (See GENERATOR INSPECTION [WITH i-ELOOP (SKYACTIV-D 2.2)].) (See DRIVE BELT INSPECTION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].) (See DRIVE BELT INSPECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION)].) (See DRIVE BELT INSPECTION [SKYACTIV-G 2.5T].) (See DRIVE BELT INSPECTION [SKYACTIV-D 2.2].) •  Are the generator and drive belt normal?	Yes	Go to the next step.
		No	Repair or replace the generator and/or drive belt, then go to the Step 3. (See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (SKYACTIV-D 2.2)].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].) (See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))].) (See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-D 2.2)].) (See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION))].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].) (See DRIVE BELT REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].) (See DRIVE BELT REMOVAL/INSTALLATION [SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT CYLINDER DEACTIVATION)].) (See DRIVE BELT REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].) (See DRIVE BELT REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)
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. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.) •  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. (See CLEARING DTC [ELECTRIC POWER STEERING (EPS)].) •  Using the M-MDS, perform the EPS control module DTC inspection. (See DTC INSPECTION [ELECTRIC POWER STEERING (EPS)].) •  Is the same Pending DTC present?	Yes	Repeat the inspection from Step 1. •  If the malfunction recurs, replace the EPS control module. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.) Go to the next step.
		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 [ELECTRIC POWER STEERING (EPS)].)
		No	DTC troubleshooting completed.