Escape 4WD L4-2.5L (2010)
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Ignition ON.
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Measure the voltage between DC/DC converter C1457A-6, circuit CYD04 (BU/OG), harness side and ground.
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Is any voltage present?
Yes
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
No
GO to D21.
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D21 CHECK THE DC/DC CONVERTER FAULT CIRCUIT FOR A SHORT TO GROUND
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Ignition OFF.
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Measure the resistance between DC/DC converter C1457A-6, circuit CYD04 (BU/OG), harness side and ground.
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Is the resistance greater than 10,000 ohms?
Yes
GO to D22.
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
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D22 CHECK THE PCM FOR AN OPEN CIRCUIT
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Ignition OFF.
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Measure the resistance between PCM C175B-8, circuit CYD04 (BU/OG), component side and PCM C175B-67, circuit CBB29 (WH/VT),
component side, and between PCM C175B-8, circuit CYD04 (BU/OG), component side and PCM C175B-68, circuit GD122 (BK), component
side.
