Crown Victoria V8-4.6L SOHC VIN 6 (1996)
YES
GO to B1322-2.
NO
System operating normally.
B1322-2 - Check Circuit 867 (DB)
-
Disconnect Lighting Control Module Connector C2.
-
Ensure that door is closed.
-
Using an ohmmeter, connect to ground, measure resistance at lighting control module connector Pin C3-8.
Is resistance less than 10K ohms?
YES
GO to B1322-3.
NO
REPLACE lighting control module. RETEST system.
B1322-3 - Check Driver Door Ajar Switch
-
Disconnect LH front driver door ajar warning switch.
-
Using an ohmmeter connected to ground, measure resistance at lighting control module Pin C2-11, Circuit 867 (DB).
Is resistance 5 ohms or less?
YES
SERVICE Circuit 867 (DB) for short to ground. RETEST system.
NO
SERVICE door ajar switch for stuck switch. RETEST system.
B1566 - Door Ajar, Short To Ground
DTC B1566: Door Ajar - Short To Ground
NOTE: Ford DOES NOT provide a procedure to perform the following pinpoint test without the Rotunda New Generation Star (NGS) tester
007-00500 or equivalent.
B1566-1 - Rerun Test
-
Make sure that all doors are closed to second latch.
-
Repeat on-demand self-test.
Is DTC B1566 still present?
YES
GO to B1566-3.
NO
GO to B1566-2.
B1566-2 - Make Sure That Switch Is Not Sticking
-
Set NGS tester to read P_DR_LC PID.
-
Open and close doors several times. Test passenger front and both rear doors.
Does PID show that doors are open and closed as expected?
YES
System operating normally.
NO
REPLACE door open warning lamp switch in door that was sticking. RESTORE vehicle. RETEST system.
B1566-3 - Check Door Lock Cylinder Switch PID
-
Set NGS tester to read P_DR_LC PID.
Does PID show "CLOSED"?
YES
REPLACE lighting control module. RESTORE vehicle. RETEST system.
NO
GO to B1566-4.
B1566-4 - Check Passenger Side Front Door Open Warning Lamp Switch
-
Disconnect passenger front door open warning lamp switch.
-
Set NGS tester to read P_DR_LIC PID.
