Fusion FWD L4-2.5L Hybrid (2010)
A3 CHECK THE MECS COOLANT PUMP RELAY POWER SUPPLY CIRCUIT FOR A SHORT TO GROUND
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Disconnect: BJB Fuse 13 (15A).
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Disconnect: BJB Relay 44.
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Disconnect: BJB Relay 42.
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Measure the resistance between the output side of BJB fuse 13 (15A) and ground.
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Is the resistance greater than 10,000 ohms?
Yes
GO to A4.
No
REPAIR circuit SBB13 (GY/RD) for a short to ground. CONNECT all components. TEST the system for normal operation.
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A4 CHECK THE MECS COOLANT PUMP AND HEATER PUMP POWER SUPPLY CIRCUITS FOR A SHORT TO GROUND
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Disconnect: MECS Coolant Pump C1466.
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Disconnect: Heater Pump Motor C1450.
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Measure the resistance between BJB relay 44 pin 5 circuit CE621 (YE/GY), BJB side and ground.
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Measure the resistance between BJB relay 42 pin 5 circuit CHC01 (BN/YE), BJB side and ground.
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Are the resistances greater than 10,000 ohms?
Yes
The condition that caused BJB fuse 13 (15A) to blow is not present. Inspect the wiring harness for an intermittent condition. Repeat test Steps A3 and