DSC, ABS, and brake light on highway - Page 18

upallnight · #**171** 07-27-2016, 01:20 PM

Brought my last wheel sensor from O'Reilley because the one I ordered from Turner Motorsport was the wrong one. Gave Turner my VIN and everything and still they sent me the wrong sensor. When I brought it to their attention, they said that base on the VIN number it was the right one, so I took photos of my old sensor and the new sensor they sent to show them that they sent the wrong sensor. Had to pay the return shipping to get my refund. Not even an apology. That was last time I ordered anything from Turner. I have been a customer of Turner since I owned my E34 Touring. O'Reilley's part fits perfect and worked perfect and it came with a lifetime warranty.

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hkaplin · #**172** 08-10-2016, 08:21 AM

So...quick update. After taking a kick or two to get the wheel off...lol!, I did my 1st X5 (or any car for that matter!) maintenance. Replaced the sensor with really little issue. Except 1...

After driving in to the office this am the trifecta popped again! I was dumbfounded as I knew I did everything right. When I read back through posts after I got ini, I did make 1 minor mistake. I replaced the WRONG SIDE! lol!!!!!!! I did the left instead of the right! UGH! Well, lesson learned!

Based on "upallnight"'s info above, I called O'Reilleys this morning and ordered another sensor. My all-in for $52 from eEuro vs $60 and pick it up local was worth the $8 difference. I'll get that done over the next day or two, especially now that I know what I'm doing! lol!

LOVING the forums! Would never have tried this if it weren't for all the great info and feedback from everyone. #RookieX5Owner TestingLimits lol!!!

Thanks everyone!

Ricky Bobby · #**173** 08-10-2016, 09:35 AM

^Glad to hear you got it fixed - at least both sides sensors are new now lol!

upallnight · #**174** 08-10-2016, 09:45 AM

Quote:

Originally Posted by hkaplin

So...quick update. After taking a kick or two to get the wheel off...lol!, I did my 1st X5 (or any car for that matter!) maintenance. Replaced the sensor with really little issue. Except 1...

After driving in to the office this am the trifecta popped again! I was dumbfounded as I knew I did everything right. When I read back through posts after I got ini, I did make 1 minor mistake. I replaced the WRONG SIDE! lol!!!!!!! I did the left instead of the right! UGH! Well, lesson learned!

Based on "upallnight"'s info above, I called O'Reilleys this morning and ordered another sensor. My all-in for $52 from eEuro vs $60 and pick it up local was worth the $8 difference. I'll get that done over the next day or two, especially now that I know what I'm doing! lol!

LOVING the forums! Would never have tried this if it weren't for all the great info and feedback from everyone. #RookieX5Owner TestingLimits lol!!!

Thanks everyone!

Joshdub · #**175** 08-29-2016, 02:17 PM

I don't know if it has been mentioned but a faulty (or misaligned) brake light switch can cause the Trifecta to show up.

Ricky Bobby · #**176** 08-29-2016, 02:35 PM

^^Yep that was my issue actually it took me about a year to figure out - $28 and I was good to go.

Post #148

Will308 · #**177** 09-27-2016, 04:58 PM

Ok, lots of good info here...my issue is I only got 2 of the 3?
The yellow brake light and the traction control light in the dash. ( No ABS light)
Happened just after I picked it up from my indy. He did the corroded brake line repairs under the drivers side plastic shroud. ( that's a whole 'nother thread). Said he had to cycle the ABS module quite a bit to clear all of the air out of the lines.

I checked the reservoir (still full) and the repaired areas ( no sign of any leaks) and everything seems OK.
Drove it back to my driveway, shut the car off and it cleared the lights.

I guess I should prepare for the wheel sensors?

Thanks and I love this board for all of the great info it's provided me.

craigsx5 · #**178** 11-29-2016, 07:07 PM

Hello All,

My X5 (165,000km) experienced the intermittent, combined brake light and DSC light a couple of months ago. This lead to the occasional disengagement of the 4WD and engine limp mode. It didn't show up any engine check codes on the analyser.
After reading this forum and given the mileage, I first decided to replace the plastic wheel in the transfer case actuator as a precaution(the old wheel looked remarkably good, however). This didn't fix the intermittent warning lights, though.......very frustrating!
Anyway, as a final thought, before I took the car to the workshop to professionally check the various sensors etc., I decided to fully replace the brake fluid (as I hadn't replaced it in almost 4 years). There were no bubbles in the fluid, just a darkened colour with a little bit of cloudy sludge.
It seems to have fixed the problem.....it's been 3 weeks now without any warning lights! HAPPY DAYS!
Just a suggestion.......check and replace your brake fluid, if you are experiencing the warning light problem...........it may be that simple?!

wpoll · #**179** 12-01-2016, 03:40 AM

Quote:

Originally Posted by craigsx5

Hello All,

My X5 (165,000km) experienced the intermittent, combined brake light and DSC light a couple of months ago. This lead to the occasional disengagement of the 4WD and engine limp mode. It didn't show up any engine check codes on the analyser.
After reading this forum and given the mileage, I first decided to replace the plastic wheel in the transfer case actuator as a precaution(the old wheel looked remarkably good, however). This didn't fix the intermittent warning lights, though.......very frustrating!
Anyway, as a final thought, before I took the car to the workshop to professionally check the various sensors etc., I decided to fully replace the brake fluid (as I hadn't replaced it in almost 4 years). There were no bubbles in the fluid, just a darkened colour with a little bit of cloudy sludge.
It seems to have fixed the problem.....it's been 3 weeks now without any warning lights! HAPPY DAYS!
Just a suggestion.......check and replace your brake fluid, if you are experiencing the warning light problem...........it may be that simple?!

If only all trifecta faults were sorted that easily!

craigsx5, not sure if the Aussie cars are the same Euro spec. we get in over here but after at least two years (seven hundred-odd days actually) since the last brake fluid change a small clock icon should appear in your dash - beneath the service countdown indicators - to warn you that a brake fluid change is due. Not sure if this is true of the low spec. cluster but it pops up on the high spec. version. The reset for the brake fluid countdown is in the same menu as for the oil/inspection reset.

craigsx5 · #**180** 12-22-2016, 06:00 PM

Thanks wpoll,
Yes, I knew about the 2 year warning clock for the brake fluid change.........I just got a 'little' late in performing doing the job! It just goes to show that you should follow the recommended fluid changes roughly in line with the recommendations.

Anyway, just as another comment/input re the brake/DSC warning light that may have some relevance:
During the few months that I had the warning/failsafe mode problem, the car also once threw up a p1500 engine code, which means throttle/idle stuck open. It also can trigger the p1500 code if there is an air pressure imbalance in the engine or air intake system.
So, I looked for evidence of any air leaks. The only suspicion I saw was a tiny oil leak from the side of valve cover seal. Before replacing the old seal, I decided to simply over-tighten the valve cover bolts by 1/4 turn. The oil leak stopped and the p1500 code disappeared.
I suspect the code was triggered by the engine ventilation system losing pressure at the valve cover gasket.
I have seen elsewhere in these forums that a p1500 code may also trigger a brake/DSC warning problem. I wonder if this was also related to my problem??

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