10 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH2002 996 abs pump constantly runs
Leading reported evidence
Replace confusion arises i suspect
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed
The confusion arises I suspect because the ABS part number has been changed.
Leading evidence: 'Replace confusion arises i suspect' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'because the abs part number has been changed' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Disconnect abs unit' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
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Discussions that suspect a cause
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Suspected cause
The confusion arises I suspect because the ABS part number has been changed.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion · Original poster
I have to disconnect the abs unit to stop it from running.
Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.
Discussions that contain suggestions
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Suggestion
Were module masters able to repair the ABS control unit?
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Discussions that contain suggestions
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Suggestion
Or you could have the unit replaced with a new one.
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Suggestion
You might give the company a call or visit its web site to see if you can learn your car's ABS unit with its running all the time symptom is a viable rebuild candidate.
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Suggestion
FYI manual states to never jump from the battery directly - always jump from the engine bay using the + terminal box and the airbox holding bolt for the negative.
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
10 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
The transporter company carries insurance for this sort of thing -- or probably more likely carries some catastrophic insurance coverage in case it loses a trailer full of cars -- and self insures for these smaller things out of its pocket, but it makes no difference.
My 2002 C2 has an ABS pump that constantly runs, it doesn't matter if the car is on or the key is completely out of it. All fuses and relays have been checked. I have to disconnect the abs unit to stop it from running. I'm told by my mechanic that I need a ABS control unit for the car, but two Porsche dealerships said that the part number that is on the car doesn't exist (996.355.755.05) and state that the correct part number for my car is 996.355.955.06
So I'm confused on why the part number on my car doesn't exist with Porsche, but they're several on ebay with the same number. Has anybody else run into this problem or know of a solution to the issue?
The confusion arises I suspect because the ABS part number has been changed. 996.355.755.05 is the part # of the old ABS unit. 996.355.755.06 is the part number of the new(er) ABS unit.
At some point a part doesn't exist if it no longer shows up in the parts # listing in the Porsche parts catalog.
I ignore the possibility the 996.355.755.05 part is just not the right part # (even if it is an older part) for your model of car.
BTW, when did the ABS pump misbehavior appear? Is the car new to you? Did you buy it used? Have you owned the car for a while and the ABS just started this behavior? Did you just have the car worked on?
The unit could be the right unit, just worn out. However, I do not know if a worn out ABS develops this running all the time behavior. That almost seems like a electronics problem.
But maybe not.
If it is just a worn out pump, or worn out valve, or something worn out, then sending it in to be rebuilt as Ashai suggests could be the way to go. You might give the company a call or visit its web site to see if you can learn your car's ABS unit with its running all the time symptom is a viable rebuild candidate. You might learn this behavior arises from some other cause other than a worn out ABS unit.
Or you could have the unit replaced with a new one. However, I would expect a new ABS unit would be a bit pricey.
I just got the car. Long story short, got a PPI done in Houston and bought the car. Transporters said the battery died and when they went to go jump it, they reversed jumped the thing right off the battery. Fried the DME and just had one rebuilt for it. Get it back, the abs pump is always running. I hoping they didn't fry that too, but thats probably what happened.
I see the used 996.355.755.05 parts on ebay for around 300. Would it just be easier to replace it with one of those or does it need to be coded?
Well, I would attribute the anomalous ABS behavior to the reversed jump start.
I'd insist that I be allowed to take car to a dealer and there have the damaged component ID'd and replaced. It could be the ABS unit, or a controller, sensor, what have you.
The transporter company carries insurance for this sort of thing -- or probably more likely carries some catastrophic insurance coverage in case it loses a trailer full of cars -- and self insures for these smaller things out of its pocket, but it makes no difference.
The reversed jump start is at the root cause of the ABS problem would be my opinion, unless the dealer finds the unit just worn out. If so then you can decide to have it rebuilt or replaced.
FYI manual states to never jump from the battery directly - always jump from the engine bay using the + terminal box and the airbox holding bolt for the negative.
Hope you get it sorted - I read on an Australian site a transport company did the same thing to a 6GT3 (jumped from the battery) for delivery and fried the ABS unit as well - must be a common issue and why its designed to jump from the rear only.
