2000 Crown Victoria/Grand Marquis Workshop Manual
PINPOINT TEST C: BOTH HEADLAMPS ARE INOPERATIVE — HIGH BEAMS AND LOW BEAMS
NOTE: Due to varying wattage ratings and resulting current draw, certain aftermarket headlamp bulbs may cause the lighting control module (LCM) to shut down the short circuit protection, resulting in the low beams becoming inoperative. Verify that the bulbs meet Ford specifications.
CONDITIONS : C1 RETRIEVE DTCS FROM LCM
DETAILS/RESULTS/ACTIONS:
Use the recorded results from the LCM self-test.
Are any DTCs retrieved?
Yes
If DTC B1470 is retrieved, GO to GO to C8 .
If DTC B1342 is retrieved, CLEAR DTC and CARRY OUT LCM On-Demand Self-Test. INSTALL a new LCM if DTC B1342
is retrieved again. REFER to Section 419-10. TEST the system for normal operation.
If other DTC(s) is (are) retrieved, RETURN to the LCM Diagnostic Trouble Code (DTC) Index.
No
If only the autolamps are inoperative, GO to Pinpoint Test I.
Otherwise, GO to C2 . Download File PDF
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