Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 02-14-2016, 07:02 PM   #1
Registered User
 
Join Date: May 2015
Location: College Station
Posts: 16
ABS dash light diagnosis...

So, today I replaced the rear rotors, pads and brake wear sensors on my 2000 Boxster 5-speed. I also washed out the engine compartment per some posts in this forum. No issues there. After completing all the brake work, bleeding brake lines, etc. I started the car. ABS light comes on. Trying to figure out what the problem is. Didn't touch any part of the ABS sensors during the brake work. Have read this could be as simple as a battery problem. Have already tested the brake pedal switch. I do have brake lights working, so that wouldn't appear to be the issue. Any thoughts from you guys?
Pbastian is offline   Reply With Quote
Old 02-14-2016, 07:51 PM   #2
Registered User
 
thom4782's Avatar
 
Join Date: Sep 2010
Location: Foster City CA
Posts: 1,085
Did you disconnect the battery while doing the work?
thom4782 is offline   Reply With Quote
Old 02-15-2016, 03:18 AM   #3
I am my own mechanic....
 
Timco's Avatar
 
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,433
Most likely culprit is sensor plug on the rear wheels but if you say you didn't disturb those then very odd or coincidental timing. The sensor needs to see those slots or grooves on the wheel hub / spline.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Timco is offline   Reply With Quote
Old 02-15-2016, 03:19 AM   #4
Registered User
 
Join Date: May 2015
Location: College Station
Posts: 16
Quote:
Originally Posted by thom4782 View Post
Did you disconnect the battery while doing the work?
No I did not...
Pbastian is offline   Reply With Quote
Old 02-15-2016, 03:31 AM   #5
Registered User
 
Join Date: May 2015
Location: College Station
Posts: 16
Quote:
Originally Posted by Timco View Post
Most likely culprit is sensor plug on the rear wheels but if you say you didn't disturb those then very odd or coincidental timing. The sensor needs to see those slots or grooves on the wheel hub / spline.
After this problem cropped up, I inspected the sensors (which are the companion sensor to the brake wear sensors plugged into that clip/receptacle behind the wheel hub, right?) they all seemed fine. I checked them to make sure they are seated.
Pbastian is offline   Reply With Quote
Old 02-27-2016, 04:59 PM   #6
Registered User
 
Join Date: May 2015
Location: College Station
Posts: 16
So this problem fixed itself. I put the wheels back on and took it out for a spin. I didn't go 100 ft and the ABS light went off. Has stayed off. Maybe after doing the brakes and spinning the axles without the wheels on, the sensors needed something to detect?? Anyway, glad it was resolved for a very low price.
Pbastian is offline   Reply With Quote
Old 02-27-2016, 05:23 PM   #7
I am my own mechanic....
 
Timco's Avatar
 
Join Date: Feb 2013
Location: Salt Lake City, UT
Posts: 3,433
The sensors detect the teeth or notches in the hub. No need for tires. Maybe grease or dirt over a sensor end or something bridging some notches so it couldn't see them properly. Or connector seated and started reading.

Glad that worked out easy.
__________________
'04 Boxster S 50 Jahre 550 Spyder Anniversary Special Edition, 851 of 1953, 6-sp, IMS/RMS, GT Metallic silver, cocoa brown leather SOLD to member Broken Linkage.
'08 VW Touareg T-3 wife's car
'13 F150 Super Crew long bed 4x4 w/ Ego Boost
Timco is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 12:06 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page