Crown Victoria V8-4.6L SOHC VIN 6 (1996)
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Using an ohmmeter, measure resistance of circuit 195 (T/W) between lighting control module connector pin C3-6 and output cavity of fuse 4
(15A).
Is resistance 5 ohms or less?
YES
REPLACE fuse 4 (15A). RESTORE vehicle. RETEST system.
NO
SERVICE circuit 195 (T/W) for open. RESTORE vehicle. RETEST system.
BA5 - Check Circuit 54 (LG/Y) For Power
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Disconnect lighting control module connector C3.
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Using a voltmeter, measure for voltage at lighting control module connector pin C3-11 circuit 54 (LG/Y).
Is voltage B+?
YES
GO to BA9.
NO
GO to BA6.
BA6 - Check Circuit 54 (LG/Y) For Short To Ground
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Remove fuse 8 (15A) from fuse junction panel.
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Using an ohmmeter connected to ground, measure resistance at lighting control module connector pin C3-11 circuit 545 (LG/Y).
Is resistance less than 10K ohms?
YES
SERVICE circuit 54 (LG/Y) for short to ground. REPLACE fuse 8 (15A). RESTORE vehicle. RETEST system.
NO
GO To BA7.
BA7 - Check Supply To Fuse 8 (15A)
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Remove fuse 8 (15A) from fuse junction panel.
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Using a voltmeter, measure for voltage at fuse 8 input cavity.
Is voltage B+?
YES
GO to BA8.
NO
SERVICE supply to fuse 8 (15A). RESTORE vehicle. RETEST system.
BA8 - Check Circuit 54 (LG/Y) For Open
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Using an ohmmeter, measure resistance of circuit 54 (LG/Y) between lighting control module connector pin C3-11 and output cavity of fuse 8.
Is resistance 5 ohms or less?
YES
REPLACE fuse 8 (15A). RESTORE vehicle. RETEST system.
NO
SERVICE circuit 54 (LG/Y) for open. RESTORE vehicle. RETEST system.
BA9 - Check Logic To Ground For Open
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Using an ohmmeter connected to ground, measure resistance at lighting control module connector pin C3-9 circuit 676 (PK/O) Town Car or circuit
57 (BK) Crown Victoria or Grand Marquis.
Is resistance less than 5 ohms?
YES
GO to Communication Network Diagnostics in Computers and Control Systems to diagnose concern. See: Powertrain
Management/Computers and Control Systems/Information Bus
NO
SERVICE Town Car circuit 676 (PK/O) or Crown Victoria and Grand Marquis circuit 57 (BK) for open. RETORE vehicle. RETEST
system.
BB - No Communication With Driver Door Module (DDM)
Pinpoint Test BB: No Communication With Driver Door Module (DDM)
BB1 - Check Power Supply to Driver Door Module
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Disconnect driver door module C3 connector.
