Dakota Quad Cab 2WD V8-5.9L VIN Z LDC (2002)
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homes and repositions door actuators.
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monitors for faults on the actuator circuits.
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faults display on the DRB III as test messages only after running the test.
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faults will not display on the DRB III as Diagnostic Trouble Codes.
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will cause the EBL mode switch status indicator (if equipped) to flash while the test is running.
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If the test fails, the status indicator will continue to flash until the test returns passed. It will also prevent the A/C mode switch status
indicator (if equipped) from indicating A/C operating status. However, the A/C mode switch will continue to function in this state.
The Actuator Circuit Test:
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is actuated with the DRB III.
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monitors for faults on the actuator circuits.
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allows service to easily diagnose and troubleshoot up to three simultaneous shorts.
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supplements the continuous diagnostics on the actuator drive system.
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faults display on the DRB III as test messages only after running the test.
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faults will not display on the DRB III as Diagnostic Trouble Codes.
When Performing The Actuator Circuit Test:
CAUTION:
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Shorted common door driver circuits can cause additional Actuator Circuit Test messages to set for circuits where no condition exists to cause B
fault.
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To ensure a proper diagnosis, repair all Short Too Complex messages first, all common door driver circuit related messages second, and all other
door driver circuit related messages last.
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The DRB III can display up to three Actuator Circuit Test messages at a time. After repairing each Actuator Circuit Test message, cycle the
ignition switch, then rerun the Actuator Circuit Test to ensure no new messages exist.
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The Short Too Complex message:
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indicates that a specific determination of which lines are shorted could not be made.
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is caused by more than three drivers being shorted in the same direction. For example, four drivers all shorted to ground, or two or more
drivers shorted with at least one driver shorted to ignition/battery and one driver shorted to ground.
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Messages displaying:
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XXX Driver/Circuit Shorted to Ignition/ Battery will set on a per-driver basis.
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XXX Driver/Circuit Shorted to Ground will set on a per-driver basis.
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the same two drivers/circuits shorted to ignition/battery as-well-as shorted to ground indicates that two actuator driver circuits are shorted
together.
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After the Actuator Circuit Test is run on systems with less than six actuators:
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the actuator drive system is left in a state where further actuator positioning requests are ignored from both the panel and the DRB III. This
state is cleared by cycling the ignition switch (cycling power to the control).
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If the test returns passed, then troubleshooting should proceed to clearing faults and running the HVAC Door Recalibration system test as a
final check of system health.
Interior Lighting
INTERIOR LIGHTING
The Courtesy lights and illuminated entry feature are controlled by the Central Timer Module (CTM). The CTM will activate the courtesy lamps,
including Map Lights and the Dome Lights when either the dome lamp switch is turned ON or a door is opened. The courtesy lamps will fade to OFF
immediately when all doors are closed and the ignition is in the RUN or ACCY position.
The illuminated entry feature operates under the following conditions:
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RKE "unlock"
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Driver/Passenger door is opened
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Unlocking either the driver or passenger using the key (vehicles equipped with security system)
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The dome lamp switch is turned ON
Once activated, the illuminated entry will "fade to OFF" after 3 to 5 seconds under the following conditions: All doors are closed and:
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RKE "lock signal is received or
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Manual actuated power "lock" signal is received
or
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Ignition switch is turned to the ON position or
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30 seconds have elapsed without any other action
Addition RKE unlock actuation before the expiration of illuminated entry will reset timer. Opening any door before the 30 second timer expires, will
reset the entry time to 30 seconds and the illuminated entry timer will not begin counting down again until all doors are closed.
The Cargo lamps are controlled by the CTM. Placing the dome lamp switch in the cargo lamp position grounds an input to the CTM. The CTM then
