F 550 4WD Super Duty V8-6.4L DSL Turbo (2008)
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Fuse
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Wiring, terminals or connectors
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SJB
E1-E2
Test F: An Individual Demand Lamp Is Inoperative
PINPOINT TEST F: AN INDIVIDUAL DEMAND LAMP IS INOPERATIVE
Normal Operation
The smart junction box (SJB) supplies voltage to the demand lamps on circuit CLN09 (YE/GN). The demand lamps are grounded through circuit
GD115 (BK/GY), GD122 (BK) or 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
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Vanity lamp (if equipped)
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Underhood lamp (if equipped)
