ABS/PSM Failure
02-02-2019, 11:08 PM
#1
ABS/PSM Failure
Have an 05' C4S - been great for the last year of ownership - no problems. - 35k miles.
It was a crazy rainy day in LA today and I drove through a huge puddle - enough to submerge about half of the wheels. Had no issue right after that, but parked the car about 20 minutes later. Kept off for about an hour. Came back to the car and immediately when I turned the ignition I got an ABS failure and PSM failure - see workshop. Tested the ABS while driving and it was not engaging at all.
Have turned the car on and off about 7 times with no change in ABS/PSM fault.
The car is sitting in my garage drying off at the moment - but I was worried and bought a replacement brake light sensor from Porsche Beverly Hills (Read that, that is a common replacement fix) - i have not installed this yet. Waiting till the morning when everything is dry.
Anyone have any insight in to what might be the issue / solution?
It was a crazy rainy day in LA today and I drove through a huge puddle - enough to submerge about half of the wheels. Had no issue right after that, but parked the car about 20 minutes later. Kept off for about an hour. Came back to the car and immediately when I turned the ignition I got an ABS failure and PSM failure - see workshop. Tested the ABS while driving and it was not engaging at all.
Have turned the car on and off about 7 times with no change in ABS/PSM fault.
The car is sitting in my garage drying off at the moment - but I was worried and bought a replacement brake light sensor from Porsche Beverly Hills (Read that, that is a common replacement fix) - i have not installed this yet. Waiting till the morning when everything is dry.
Anyone have any insight in to what might be the issue / solution?
02-03-2019, 01:20 AM
#2
Check the fault codes with a code reader or go to an auto parts store like Pep Boys or Advance Auto and ask them to read the codes for you. Post the results here.
02-03-2019, 01:42 AM
#3
Rennlist Member
Yeah, read the codes.
My guess is that the MAF got wet, a fault there triggers ABS (and in my case traction control) issues.
Curious to see if it’ll solve itself overnight by drying out.
My guess is that the MAF got wet, a fault there triggers ABS (and in my case traction control) issues.
Curious to see if it’ll solve itself overnight by drying out.
02-03-2019, 04:15 PM
#5
i let let it dry out over night. Just turned the ignition and no fault. Drove for a second. No fault.
Thanks all. Will report back if it comes back.