F 350 2WD Super Duty V8-6.4L DSL Turbo (2009)
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Do the courtesy lamps illuminate?
Yes
REMOVE the jumper wire. VERIFY the SJB fuse 9 (15A) is OK. If OK, GO to A3. If not OK, REFER to the Wiring Diagrams to identify the possible
causes of the circuit short.
No
REMOVE the jumper wire. REPAIR the circuit. RUN the on-demand self-test (required to clear certain DTCs). CORRECT any unresolved DTCs.
CLEAR the DTCs. REPEAT the self-test.
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A3 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 B: An Individual Interior Courtesy Lamp Is Inoperative
Interior Lighting
Pinpoint Tests
Pinpoint Test B: An Individual Interior Courtesy Lamp Is Inoperative
Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
Circuit CLN03 (YE/GY) provides voltage to each courtesy lamp when activated. The courtesy lamps are grounded through circuit GD179 (BK/VT).
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
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Interior lamp
PINPOINT TEST B: AN INDIVIDUAL INTERIOR COURTESY LAMP IS INOPERATIVE
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
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B1 CHECK THE INTERIOR LAMP
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Ignition OFF.
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Disconnect: Suspect Interior Lamp.
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Open the driver door.
