Crown Victoria V8-281 4.6L SFI (1998)
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IGNSW (50A)
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STR/ALT (30A).
3. If inspection reveals an obvious concern that is readily serviced, correct the concern before continuing with Inspection and Verification.
4. If the concern remains after inspection, connect the scan tool to the data link connector (DLC) located beneath the instrument panel to perform
DATA LINK DIAGNOSTICS (DTC) test. If the scan tool responds with NO RESPONSE/NOT EQUIPPED for the lighting control module, go to
Pinpoint Test A.
If the DATA LINK DIAGNOSTICS test is passed for the lighting control module, retrieve continuous DTCs and execute Self Test Diagnostics for
the lighting control module to retrieve current DTCs.
5. If self test is passed and no DTCs are retrieved go to the Symptom Chart to continue diagnostics.
See: Symptom Related Diagnostic Procedures
6. If DTCs are retrieved, go to the Lighting Control Module (LCM) Diagnostic Trouble Code (DTC) Index to continue diagnostics.
See: Turn Signals/Testing and Inspection/Diagnostic Trouble Code Descriptions/LCM Diagnostic Trouble Code Index
7. If the lighting control module cannot be accessed by the scan tool, go to Pinpoint Test A.
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