DTC U3003:17
id060200810100
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DTC U3003:17
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Battery power supply
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DETECTION CONDITION
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• Voltage of 17.5 V or more detected by EPS CM internal battery voltage observation.
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FAIL-SAFE FUNCTION
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• Control disabled
• Power steering malfunction indicator light: Illuminated
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POSSIBLE CAUSE
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• Generator malfunction
• Poor connection at connectors
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SYSTEM WIRING DIAGRAM
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—
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
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1
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INSPECT CHARGING SYSTEM
• Are the generator and drive belt tension normal?
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Yes
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Go to the next step.
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No
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Replace the generator and/or drive belt if necessary.
Go to step 3.
(See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)].)
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2
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INSPECT WHETHER MALFUNCTION IS CAUSED BY POOR CONNECTION OF EPS CM OR PIN DEFORMATION
• Switch the ignition OFF.
• Inspect connection of the EPS CM and wiring harness.
• Disconnect the EPS CM connector.
• Inspect whether malfunction is caused by bent or poorly connected EPS CM connector pin.
• Are the connector connection, connector pins, and wiring harness normal?
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Yes
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Go to the next step.
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No
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Repair or replace the faulty connector wiring harness, then go to the next step.
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3
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VERIFY THAT THE SAME DTC IS NOT PRESENT
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the memory.
• Is the same DTC present?
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Yes
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Replace the EPS CM, then go to the next step.
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No
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Go to the next step.
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4
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VERIFY THAT NO OTHER DTCS ARE PRESENT
• Are any other DTCs output?
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Yes
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Go to the applicable DTC inspection.
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No
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DTC troubleshooting completed.
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