My 2002 Porsche Boxster ABS lights are on and the ABS moter keeps running even when the key is off. If I don't pull the battery cable off it will keep running. Its only got 38311 miles on it. whats the problem?
Country: United StatesMake: PorscheModel: Boxster SYear: 2002Engine: 2.7
Some have suggested that the pump is clogged and I need to drain the brake fluid and replace with new fluid. this may remove the clog. Its also thought I may have to replace the ABS pump...Thats costly! My question is why does the ABS motor continue to run even with the starter key off?
I'm thinking this is a stuck relay issue - let me see if I can find a wiring diagram.
I don't think changing the brake fluid will help.
I'll wait your further findings or the wiring diagram. thanks
Does this car have traction control?
No I don't think so
Are you close to the car?
NO its at my house and I am 64 miles away?
The abs control unit is on the left side of the front luggage compartment.
Yes thats correct I know that!
There are two relays that are are part of the abs control unit. They are called engine relay (which makes little sense to me) and valve relay. My million mile away diagnosis is that the engine relay is stuck on.
Where are they located?
It make a difference as to whether or not you have traction control, as the controllers are different.
Can you give me both locations?
The relays are part of the control unit, and may be integral. I haven't touched one of these
Whats your suggestion?
I'm still looking...
This is not good news - I quote "NOTE: The relays cannot be exchanged. When replacement is necessary, the complete hydraulic unit must be replaced."
Yes its probably bad news I hope I can find a rebuilt any suggestions?
To further answer your question, the realy is supplied battery power. If the realy contacts are stuck, the ABS pump will run all of the time.
I can't help in that respect, as far as a rebuild goes - I am based in Canada. Up here, I would recommend the customer head to a dealer
Can I cut the wire to the motor only temporally without harming anything?
If this information has been helpful, please feel free to make that comment on your feedback.
I can't recommend that you make that modification, as this is a safety issue.
I will be signing off until tomorrow.
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Tune up and driveability technician