I have a 2001 Ford Expedition, 4x2 4.6L

I have a Constant Parasitic Drain of .28 A, 280ma

I have followed the steps to the T in the ford service manuals.

Here is the case.

Test Scenario- Car off, all doors, hood everything closed, keys out of ignition

I tested all fuses and relays, with the series dc amp test.

1. When I pull Fuse #15,
(#15 = Stop Lamp Swith {Speed Control, Brake Shift interlock} GEM Module, RABS Module) 5 amp
It goes to .02a, 20ma
I put back Fuse #15

2. When i pull Fuse #14,
fuse 14 (Battery Saver Relay, Interior lamp relay)
It goes to .17a, 170ma
I put back Fuse #14

3. I pull the battery saver relay
It goes to .17a, 170ma
I put new Battery Saver relay
Test again It goes to .17a, 170ma

* Did i close all doors hood and keep the multimeter connected YES
* did i wait 1 hour between test, including new battery saver YES
* New Battery Installed.

Tested Brake master cylinder CC deactivate switch by unplugging no change.

Tested Brake switch, removed connector no change in amps.

No Fuses are blown, all fuses are intact.

Things not working on Car.
Rear Wiper, - Ensured in seated position, pulled all fuses, disconnected motor everything related tested tested no drop in draw

Air bag light is on - only when key in ignition and started

Converted from Air suspension to Springs - master switch off under passenger dash, fuse pulled permanently.

Radio - cut memory wire just to be sure, went down 5ma only, not the issue

Cruise Control not work - ford dealer says its works and not code flashing, but it clearly does not work. I disconnected the deactivation switch on the master cylinder, no change in draw.. again pulled all fuses.. Cruse control never worked since i bought it 2 years ago.

Brake Switch - tested, by depressing brake, went up to 6 amps, all brake lights came on, shift lock working propery, after removing foot from brake went back to 280ma draw,,,Disconnect all brake swtich connectors, not change in draw..

 

Did you ever find out what was wrong with yours?