Ranger 2WD V6-182 3.0L (1995)
DTC Chart Part 4 Of 4
NOTE: If DTC B1342 is retrieved, replace the GEM.
On-Demand Self Test Results
The results of the On-Demand Self Test is in the form of DTC. The On-Demand Self Test DTC are requested after the test has run.
The On-Demand Self Test detects faults within milliseconds as opposed to one second for the continuous fault code detection. The shorter period of time
reduces the overall test time and can help identify intermittent faults.
Overview and Preparation
The tester-dependent diagnostics mode allows communication with the GEM through the NGS Tester. Diagnostic testing is controlled by turning on
outputs, reading inputs, retrieving DTCs, clearing DTCs, direct memory reference and initiating functional tests.
The On-Demand Self Test consists of a module self test and a GEM subsystem input/output self test. Continuous DTCs are not affected when running an
On-Demand Self Test.
NOTE: Do not press any buttons or switches during the On-Demand Self Test.
The On-Demand Self Test requires the following vehicle conditions:
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all doors closed
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key in RUN.
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multi-function switch is in the OFF position and the windshield wiper blades parked
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head lamps OFF
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all windows up
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liftgate closed
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seat belts unbuckled
