F 250 2WD Super Duty V10-6.8L (2009)
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Disconnect: Negative Battery Cable.
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Measure the resistance between the suspect running board lamp, harness side and ground as follows:
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Is the resistance less than 5 ohms?
Yes
INSTALL a new running board lamp in question. TEST the system for normal operation.
No
REPAIR the circuit. TEST the system for normal operation.
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H6 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. RUN the on-demand self-test
(required to clear certain DTCs). CORRECT any unresolved DTCs. CLEAR all DTCs. TEST the system for normal operation.
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Pinpoint Test I: The Courtesy Lamps Are Inoperative From The Instrument Panel Dimmer Switch
Interior Lighting
Pinpoint Tests
Pinpoint Test I: The Courtesy Lamps Are Inoperative From The Instrument Panel Dimmer Switch
Refer to Wiring Diagram Set 89, Interior Lighting for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
