Ranger 2WD V6-3.0L (2008)
Courtesy Lamp: Pinpoint Tests
Test A: The Interior Lamp Is Inoperative
PINPOINT TEST A: THE INTERIOR LAMP IS INOPERATIVE
Normal Operation
Voltage is supplied to the SJB through circuit SBB05 (GY/RD). The SJB fuse 13 (15A) supplies voltage to the interior lamp relay (integral to the
SJB). When any door is opened, the door ajar switch closes, signalling the SJB. The SJB monitors the door ajar circuits, and the instrument panel
dimmer switch input. Based on these inputs, the SJB supplies voltage to the interior lamp on circuit CLN28 (GN/BU).
This pinpoint test is intended to diagnose the following:
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Fuse
-
Wiring, terminals or connectors
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Interior lamp
-
SJB
A1-A2
