Ranger 2WD V6-245 4.0L VIN X SFI (1997)
Vehicle Set Up
Perform the following vehicle set-up prior to running any New Generation STAR tests:
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Ignition switch in RUN
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Vehicle Transmission Range (TR) position in P (PARK)
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Driver seat not occupied
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Parking brake must be applied
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All passenger compartment, hood and luggage compartment doors closed
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All switches in the nominal OFF position. Do not touch any handle, control or switch that may produce a module input unless instructed to do so
by New Generation STAR program.
1. Hookup New Generation STAR Tester and perform Vehicle Selection.
2. Perform Data Link Diagnostics Test to check the Multiplex Communication Network (MCN).
If the MCN Data Link Diagnostics Test passed and concern(s) still remains, then go to Step 3, if data link diagnostic test did not pass go to
Diagnostic Trouble Code Chart.
3. Retrieve continuous DTCs from selected module. Use diagnostic procedure outlined under New Generation STAR Tester Operation,
Retrieve/Clear Continuous DTCs.
4. Record all continuous DTCs, then clear all DTCs from the selected module using the appropriate diagnostic procedures.
5. Perform On-Demand Self-Test on the selected module.
NOTE: The Self-Test program for an individual module may produce observable outputs.
6. Record all On-Demand Self-Test DTCs and go to Diagnostic Trouble Code Chart to continue diagnosis. If On-Demand Self-Test passed and
concern(s) still remains, then go to Step 7.
7. Use the continuous DTCs recorded in Step 4 and go to Diagnostic Trouble Code Chart to continue diagnosis. If no continuous DTCs retrieved in
Step 4, then concern(s) is not related to Multiplex Communication Network.
Wiggle Test
The wiggle test is designed to help identify and locate intermittent failures in the vehicle wiring harness and system components. Upon entering wiggle
test, several inputs and outputs of the module are monitored for change of state. When a state change is encountered, an audible tone can be heard and/or
a Diagnostic Trouble Code (DTC) will be displayed on the New Generation STAR (NGS) tester 007-00500. For modules which store DTCs, the DTC
description will determine an open circuit, short to ground or a short to B+. By initiating wiggle test and pulling on different areas of the vehicle harness,
intermittent open and short circuits can be located and serviced.
1. Perform New Generation STAR Tester Hookup and Vehicle Selection.
2. Rotate dial to menu item Diagnostic Data Link and press trigger.
NOTE: The ignition switch must be in RUN position or test will fail.
3. Select module to test by rotating dial to highlight module and press trigger.
4. Menu item Diagnostic Test Modes is highlighted. Press trigger.
5. Rotate dial to highlight menu item Wiggle Test. Press trigger, then press start (Button 3).
