ABS and 4x4 issues, possibly related?

[coreyoli]

Hey all, new members, been browsing for a while, lots of great info, but I think I have kind of a combined issue, not sure, looking for thoughts...

I have a 2002 Ford Explorer XLS with 222k miles, runs great, just has some little annoyances I'm working on, I bought it a couple months ago, so not sure on how long some of these issues have been around, just know they are!

ABS light on constant, best I can tell it isn't working (don't care, I HATE abs) however I think it may be related to a problem I WANT to fix, and that's the 4wd...

4wd high (ONLY) blinks 10 times... Won't go into 4wd at all... Now, I have heard people say this could be the CM, etc... I've also had people say it can be related to ABS issues...

my diag picked up 1165 and 1175, I realized I have only one sensor on the rear diff, so more than likely that's the abs issue...

Question...

Is it possible that the abs sensor on the rear diff can cause the 4wd to not work AT ALL... I understand it could cause issues with the 4wd auto, as the vehicle doesn't understand when to kick in, but if I manually try to put in 4wd high, it WILL not go...

Personally I would think that the sensor wouldn't stop from going into 4wd high as the ME (well the switch) is telling it to lock the front hubs, not the sensor, but stranger things have happened...

I'm trying to avoid the 4x4cm if I can as it is expensive, but MUCH easier to get to than that damn abs sensor, lol...

Anyway, enough of my rambling, any input would be greatly appreciated.

Thanks all!

-Corey

 

[coreyoli]

My apologies I have an xls not xlt...

 

[College Student]

There is a possibility that the sensor on the brake booster went bad. Others have said that the sensor can cause the abs light to illuminate. Personally mine didn't illuminate do to this but the easiest way to tell if that is the issue is to check and see if the cruise works correctly, and easily. Mine would have trouble staying in cruise (that is if i could even get it to engage). Check that next time you go driving and have the ability to test it.

 

[coreyoli]

There is a possibility that the sensor on the brake booster went bad. Others have said that the sensor can cause the abs light to illuminate. Personally mine didn't illuminate do to this but the easiest way to tell if that is the issue is to check and see if the cruise works correctly, and easily. Mine would have trouble staying in cruise (that is if i could even get it to engage). Check that next time you go driving and have the ability to test it.

Actually my cruise does give me fits sometimes light just flashes and won't stay engaged... Only reason I didn't look at that was the codes the abs system was throwing c1165 and c1175 which are rear wheel speed sensors... But the one you are referring to its much easier to get at may be worth a shot!

Thanks

-Corey

 

[rrgone]

Hey all, new members, been browsing for a while, lots of great info, but I think I have kind of a combined issue, not sure, looking for thoughts...

I have a 2002 Ford Explorer XLS with 222k miles, runs great, just has some little annoyances I'm working on, I bought it a couple months ago, so not sure on how long some of these issues have been around, just know they are!

ABS light on constant, best I can tell it isn't working (don't care, I HATE abs) however I think it may be related to a problem I WANT to fix, and that's the 4wd...

4wd high (ONLY) blinks 10 times... Won't go into 4wd at all... Now, I have heard people say this could be the CM, etc... I've also had people say it can be related to ABS issues...

my diag picked up 1165 and 1175, I realized I have only one sensor on the rear diff, so more than likely that's the abs issue...

Question...

Is it possible that the abs sensor on the rear diff can cause the 4wd to not work AT ALL... I understand it could cause issues with the 4wd auto, as the vehicle doesn't understand when to kick in, but if I manually try to put in 4wd high, it WILL not go...

Personally I would think that the sensor wouldn't stop from going into 4wd high as the ME (well the switch) is telling it to lock the front hubs, not the sensor, but stranger things have happened...

I'm trying to avoid the 4x4cm if I can as it is expensive, but MUCH easier to get to than that damn abs sensor, lol...

Anyway, enough of my rambling, any input would be greatly appreciated.

Thanks all!

-Corey

Hi Corey,

The ABS system and auto 4WD system do not use the same sensors in a 2002 XLS. Also, there are no locking hubs either. Sounds like you do need a new CM to fix the 4WD issues, but check the wiring harness on the x-fer case over carefully for damages. Pay close attention to the ground (black) wire to make sure it is firmly attached.

I would bite the bullet and change the ABS sensor on the rear differential before changing anything else in the ABS system. ABS can be a lifesaver on slick roads so I would not let that go either.

Good luck. Keep us posted.