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DC-DC CONVERTER INSPECTION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)]

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Note

•  For location index of the DC-DC converter (Mazda M Hybrid) on vehicles with Mazda M Hybrid, refer to the Mazda M Hybrid section. (See DC-DC CONVERTER (Mazda M Hybrid) INSPECTION.)

DC-DC Converter Operation Inspection

1.  Perform the KOER self-test.

•  If the following DTCs are detected, repair the applicable malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [PCM (SKYACTIV-G (E))].)

―  P058A:00, P0A8D:00, P0A94:00, U0298:00, U1007:00

2.  Inspect the battery.

•  If there is a malfunction, recharge or replace the battery, then go to the next step. (See BATTERY RECHARGING [(E)].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G (WITH CYLINDER DEACTIVATION (E))].)

3.  When the engine is restarted by the i-stop control, verify that the following measured voltages are not lower than 11.5V.

•  Commander switch supply terminal (vehicle wiring harness-side connector terminal A)

•  Humidity sensor/solar radiation sensor/auto light sensor/rain sensor terminal (vehicle wiring harness-side connector terminal D)

―  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.

•  Between DC-DC converter terminal K and commander switch terminal A

•  Between DC-DC converter terminal K and humidity sensor/solar radiation sensor/auto light sensor/rain sensor terminal D

―  If there is any open or short circuit in the wiring harness, repair or replace the malfunctioning part.

―  If there is any open or short circuit in the wiring harness, replace the DC-DC converter. (See DC-DC CONVERTER REMOVAL/INSTALLATION [SKYACTIV-G 2.5 (WITH CYLINDER DEACTIVATION)].)

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