F 350 2WD Super Duty V8-6.4L DSL Turbo (2009)
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I3 CHECK CIRCUIT CLN28 (GN/BU) FOR AN OPEN
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Disconnect: SJB C2280b.
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Ignition OFF.
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Measure the resistance between the instrument panel dimmer switch C2065-2, circuit CLN28 (GN/BU), harness side and the SJB C2280b-51,
circuit CLN28 (GN/BU), harness side.
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Is the resistance less than 5 ohms?
Yes
GO to I4.
No
REPAIR the circuit. TEST the system for normal operation.
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I4 CHECK FOR CORRECT SJB OPERATION
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Disconnect all the SJB connectors.
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Check for:
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corrosion
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damaged pins
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pushed-out pins
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Connect all the SJB connectors and make sure they seat correctly.
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Operate the system and verify the concern is still present.
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Is the concern still present?
Yes
INSTALL a new SJB. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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Pinpoint Test J: The Battery Saver Does Not Deactivate After Time-Out
Interior Lighting
Pinpoint Tests
Pinpoint Test J: The Battery Saver Does Not Deactivate After Time-Out
Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
The Smart Junction Box (SJB) provides a battery saver function. The battery saver function provides automatic shutoff of the interior lamps (demand
lamps and underhood lamp) after a predetermined time period has elapsed in order to save battery power.
This pinpoint test is intended to diagnose the following:
