Test 46A - Headlamp Time Delay Will Not Turn On

NOTE: For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see appropriate article in ENGINE PERFORMANCE:

WIRING DIAGRAMS - 3.3L
WIRING DIAGRAMS - 3.5L
Perform TEST VER-1 after each repair.
CAUTION: Always turn ignition off prior to disconnecting any module connector.

Turn ignition on. Using scan tool, actuate headlamp time delay relay. If headlamps do not toggle on and off, go to TEST 46B. If headlamps toggle on and off, go to next step.
Using scan tool, stop headlamp time delay relay actuation. Turn headlamp switch on. If headlamps do not come on, repair open Light Green wire. If headlamps come on, go to next step.
Using scan tool, read headlamp switch status while turning headlamp switch off then back on. If scan tool reading corresponds with headlamp switch position, HEADLAMPS OFF (switch off) then HEADLAMPS ON (switch on), replace Body Control Module (BCM). BCM is located behind right kick panel. If scan tool reading does not correspond to headlamp switch position, go to next step.
Remove fuse No. 5 from junction block. See Figure . Junction block is located behind end cover, on left side of instrument panel. Using scan tool in voltmeter mode, check voltage on fuse No. 5 connector (Light Green wire). If voltage is less than 10 volts, repair open Light Green wire. If voltage is more than 10 volts, go to next step.
Turn headlamp switch off. Inspect fuse No. 5. If fuse is open, go to step 7). If fuse is okay, turn ignition off. Disconnect BCM connectors. Turn headlamp switch on. Go to next step.
Using scan tool in voltmeter mode, check voltage on BCM Bone connector terminal No. 3 (Red/Light Green wire). If voltage is less than 10 volts, repair open Red/Light Green wire between fuse No. 5 and BCM. If voltage is more than 10 volts, replace BCM.
Turn ignition off. Disconnect Body Control Module (BCM) connectors. BCM is located behind right kick panel. Using scan tool in ohmmeter mode, check resistance of BCM Bone connector terminal No. 3 (Red/Light Green wire). If resistance is less than 5 ohms, repair short to ground in Red/Light Green wire and replace fuse No. 5. If resistance is more than 5 ohms, replace BCM and replace fuse No. 5.