DC-DC CONVERTER INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5 (WITHOUT i-ELOOP)]
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Note
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• The i-ELOOP caution label is adhered to the position shown in the figure below on vehicles with i-ELOOP. When determining if a vehicle in for servicing is equipped with i-ELOOP, refer to the i-ELOOP section. (See
DC-DC CONVERTER (i-ELOOP) INSPECTION [i-ELOOP].)
DC-DC Converter Operation Inspection
1. Verify that the DC-DC converter related DTC is detected. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5)].)
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• If DTCs are detected, repair the malfunctioning part according to the applicable DTC troubleshooting.
• If a DTC is not detected, go to the next step.
2. Inspect the battery. (See BATTERY INSPECTION [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5])
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3. When the engine is restarted by the i-stop control, verify that the following measured voltages are not lower than 11.5V.
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• Auto light sensor/humidity sensor/rain sensor supply terminal (vehicle wiring harness-side connector terminal D)
• Audio unit supply terminal (vehicle wiring harness-side connector terminal 1B) (without center display)
• Tuner and amp unit (TAU) (vehicle wiring harness-side connector terminal 2T) (with center display)
• Audio amplifier (vehicle wiring harness-side connector terminal 3A) (with center display/BOSE® type audio)
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― If it cannot be verified, go to the next step.
4. Inspect the wiring harness between the following terminals for an open or short circuit.
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• Between the DC-DC converter terminal K and auto light sensor/humidity sensor/rain sensor terminal D
• Between the DC-DC converter terminal K and audio unit terminal 1B (without center display)
• Between the DC-DC converter terminal K and tuner and amp unit (TAU) terminal 2T (with center display)
• Between the DC-DC converter terminal K and audio amplifier terminal 3A (with center display/BOSE® type audio)
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― If there is any open or short circuit in the wiring harness, repair or replace the malfunctioning part.
