Explorer Sport Trac 2WD V6-4.0L (2009)
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Is the resistance less than 5 ohms?
Yes
GO to AC12.
No
REPAIR the circuit. TEST the system for normal operation.
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AC6 CHECK CIRCUIT GD120 (BK/GN) FOR AN OPEN
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Ignition OFF.
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Disconnect: Negative Battery Cable.
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Measure the resistance between the trailer battery charge relay pin 85, circuit GD120 (BK/GN), BJB face side and ground.
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Is the resistance less than 5 ohms?
Yes
GO to AC7.
No
REPAIR the circuit. TEST the system for normal operation.
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AC7 CHECK FOR VOLTAGE TO THE TRAILER BATTERY CHARGE RELAY
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Measure the voltage between the trailer battery charge relay pin 30, circuit SSB13 (GY/RD), BJB face side and ground.
