Ranger 4WD V6-4.0L (2009)
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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 4X4 control module 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 4X4 control module. 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. CLEAR the DTCs. REPEAT the
self-test.
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Pinpoint Test C: The Interior Lamp Does Not Turn on With One Door Open
Interior Lighting
Pinpoint Tests
Pinpoint Test C: The Interior Lamp Does Not Turn On With One Door Open
Refer to wiring Diagram Set 89, Interior Lamps for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By Number
Normal Operation
When any door is opened, the door ajar switch closes and signals the Smart Junction Box (SJB). The SJB receives the door open signal and activates the
interior lamp relay (internal to the SJB) and supplies voltage to circuit CLN28 (GN/BU).
This pinpoint test is intended to diagnose the following:
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Wiring, terminals or connectors
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Door ajar switch
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SJB
PINPOINT TEST C: THE INTERIOR LAMP DOES NOT TURN ON WITH ONE DOOR OPEN
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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C1 CHECK THE DOOR AJAR PIDs
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Ignition ON.
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Enter the following diagnostic mode on the scan tool: SJB DataLogger.
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Check the SJB door ajar switch PIDs (D_DR_SW, P_DR_SW, RRDR_SW, LRDR_SW) while opening and closing all the doors.
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Do the PID values agree with all the door positions?
Yes
GO to C5.
No
GO to C2.
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C2 CHECK THE GROUND CIRCUIT FOR AN OPEN
