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

id0602a6810100

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) CONTROL MODULE].)

POSSIBLE CAUSE

•  Generator malfunction

•  Poor connection at connectors

SYSTEM WIRING DIAGRAM

Not applicable

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) CONTROL MODULE].)
POSSIBLE CAUSE	• Generator malfunction • Poor connection at connectors
SYSTEM WIRING DIAGRAM	Not applicable

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT CHARGING SYSTEM • Are the generator and drive belt tension normal? (See GENERATOR INSPECTION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See GENERATOR INSPECTION [WITHOUT i-ELOOP (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See GENERATOR INSPECTION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) (See GENERATOR INSPECTION [SKYACTIV-G 2.5T].) (See GENERATOR INSPECTION [SKYACTIV-D 2.2].) (See DRIVE BELT INSPECTION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See DRIVE BELT INSPECTION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See DRIVE BELT INSPECTION [SKYACTIV-G 2.5T].) (See DRIVE BELT INSPECTION [SKYACTIV-D 2.2].)	Yes	Go to the next step.
1		No	Replace the generator and/or drive belt if necessary. Go to step 3. (See GENERATOR REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See GENERATOR REMOVAL/INSTALLATION [WITHOUT i-ELOOP (WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5))].) (See GENERATOR REMOVAL/INSTALLATION [WITH i-ELOOP (SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION))].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-D 2.2].) (See DRIVE BELT REMOVAL/INSTALLATION [WITHOUT CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (See DRIVE BELT REMOVAL/INSTALLATION [WITH CYLINDER DEACTIVATION (SKYACTIV-G 2.0, SKYACTIV-G 2.5)].) (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. • Inspect whether malfunction is caused by bent or poorly connected EPS control module connector pin. • Are the connector connection, connector pins, and wiring harness normal?	Yes	Go to the next step.
2		No	Repair or replace the faulty connector wiring harness, then go to the next step.
3	VERIFY THAT THE SAME DTC IS NOT PRESENT • Make sure to reconnect all disconnected connectors. • Using the M-MDS, clear the DTC from the EPS control module. (See CLEARING DTC [ELECTRIC POWER STEERING (EPS) CONTROL MODULE].) • Using the M-MDS, perform the EPS control module DTC inspection. (See DTC INSPECTION [ELECTRIC POWER STEERING (EPS) CONTROL MODULE].) • Is the same Pending DTC present?	Yes	Replace the EPS control module, then go to the next step. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCS ARE PRESENT • Are any other DTCs output?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ELECTRIC POWER STEERING (EPS) CONTROL MODULE].)
4		No	DTC troubleshooting completed.