4WD blinking light
Elder User
Joined: Jan 2004
Posts: 706
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Electric shift motor would be my first guess. I recently had the exact same problem in my Ranger. Take the shift motor off the transfer case clean it up as well as all the connections and reinstall it. Unplug your negative battery cable while doing all this to help refresh the system when you go to fire her back up.
Also: Interested in selling that van? I've been searching long and far for a 96/97 Aero AWD and am at the point where if I see one, I just offer up to buy it.
Also: Interested in selling that van? I've been searching long and far for a 96/97 Aero AWD and am at the point where if I see one, I just offer up to buy it.
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
code 02 generated by the onboard electronic 4wd control module located under the drivers seat.
code 02 Clutch connector or clutch coil has discontinuity
large troubleshooting section in Ford Service CD Aerostar section 7-07A Diagnos and testing Diagnostic Flash Code Information
http://www.fordcds.com/
year under Ford trucks
it's a DIY'er repair if you want to spent some time under the vehicle troubleshooting with a DMM volt/ohm meter.
code 02 Clutch connector or clutch coil has discontinuity
large troubleshooting section in Ford Service CD Aerostar section 7-07A Diagnos and testing Diagnostic Flash Code Information
http://www.fordcds.com/
year under Ford trucks
it's a DIY'er repair if you want to spent some time under the vehicle troubleshooting with a DMM volt/ohm meter.
Last edited by 96_4wdr; Oct 26, 2005 at 04:58 PM.
Posting Guru
Joined: Jul 2004
Posts: 2,416
Likes: 1
From: Mitchell, SD
Originally Posted by wresleu
Electric shift motor would be my first guess. I recently had the exact same problem in my Ranger. Take the shift motor off the transfer case clean it up as well as all the connections and reinstall it. Unplug your negative battery cable while doing all this to help refresh the system when you go to fire her back up.
Senior User
Joined: Feb 2004
Posts: 389
Likes: 0
From: Rochester, NY
Well, more specifically, whether the center diff is open or locked, since 50/50 is an easy-to-market oversimplification.
When locked, 50/50 is just a perfect world nominal that it probably never sees, mainly because there's more weight on the front then the rear. Instead, it could be anywhere from 100/0 to 0/100 at any given moment depending on weight distribution and traction. The extreme example of this is if you when you absolutely loose traction on one end, and the lock function engages and the van still goes. In this case, zero % of the torque that moves the van is achieved at the end that has no traction and 100% is at the end with traction. Thus 0/100...
When locked, 50/50 is just a perfect world nominal that it probably never sees, mainly because there's more weight on the front then the rear. Instead, it could be anywhere from 100/0 to 0/100 at any given moment depending on weight distribution and traction. The extreme example of this is if you when you absolutely loose traction on one end, and the lock function engages and the van still goes. In this case, zero % of the torque that moves the van is achieved at the end that has no traction and 100% is at the end with traction. Thus 0/100...
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
also supplies a great in the seat of the pants feeling when that transfer case clutch kicks in and out that big hollow toad comes from the mud or deep snow, really surprises onlookers in their front end heavy drop thru the snow crust and winch beasts.
are any of the manuf's still building a similar system with split front/rear power transfer and chain drive transfer case? see that one of manuf's is building a hybrid with gas/electric drive to front axle and 1 electric motor on each rear wheel for quasi electronic AWD.
are any of the manuf's still building a similar system with split front/rear power transfer and chain drive transfer case? see that one of manuf's is building a hybrid with gas/electric drive to front axle and 1 electric motor on each rear wheel for quasi electronic AWD.
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Senior User
Joined: Feb 2004
Posts: 389
Likes: 0
From: Rochester, NY
Originally Posted by 96_4wdr
are any of the manuf's still building a similar system with split front/rear power transfer and chain drive transfer case? see that one of manuf's is building a hybrid with gas/electric drive to front axle and 1 electric motor on each rear wheel for quasi electronic AWD.
Regarding hybrids, I've heard that some manufacturers are looking at a full-time AWD system like this because they get better regen braking from having all 4 wheels permanently driven, so there are different takes on that...
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Lead Driver
Joined: Sep 2003
Posts: 7,015
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From: SoCal
Originally Posted by Torsen Rick
Regarding hybrids, I've heard that some manufacturers are looking at a full-time AWD system like this because they get better regen braking from having all 4 wheels permanently driven, so there are different takes on that...
By the way, what are some of the causes that can make the AWD mechanism lock on at all times, even around corners at low speeds? Mine did this, and it sounded like it was going to break an axle around turns. I had to pull the module under the seat to make it stop. Could it be just a shorted sensor? Is there a self test I can run on it?
xlt
Postmaster
Joined: Sep 2003
Posts: 4,452
Likes: 1
From: Southern California
XLTWD40:
Remove the two sensors from the Transfer Case and measure the resistances between the three pins. They should read roughly 1000, 2000 and 3000 Ohms. There may be some ATF leaking into the connector, which is OK in my opinion. Just spray the connector with some electric cleaner and you will be OK.
Remove the two sensors from the Transfer Case and measure the resistances between the three pins. They should read roughly 1000, 2000 and 3000 Ohms. There may be some ATF leaking into the connector, which is OK in my opinion. Just spray the connector with some electric cleaner and you will be OK.
