Mariner 4WD L4-2.5L (2010)
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Was the battery voltage at least 0.5 volts greater when the ignition was in the ON position?
Yes
If DTC P0A11, P0A12 or P0A13 was retrieved, GO to D14.
If DTC P0A08, P0A09 or P0A10 was retrieved, GO to D19.
No
INSTALL a new DC/DC converter. REFER to Direct Current/Direct Current (DC/DC) Converter . CLEAR the DTCs. REPEAT the self-test.
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D14 CHECK THE DC/DC CONVERTER ENABLE CIRCUIT FOR AN OPEN
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Disconnect: PCM C175T.
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Measure the resistance between DC/DC converter C1457A-1, circuit CYD03 (BN/YE), harness side, and PCM C175T-12, circuit CYD03
(BN/YE), harness side.
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Is the resistance less than 5 ohms?
Yes
GO to D15.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
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D15 CHECK THE DC/DC CONVERTER ENABLE CIRCUIT FOR A SHORT TO VOLTAGE
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Ignition ON.
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Measure the voltage between DC/DC converter C1457A-1, circuit CYD03 (BN/YE), harness side and ground.
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Is any voltage present?
Yes
