01-14-2022, 06:59 AM
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#1
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Registered User
Join Date: Apr 2017
Location: Dyersburg TN
Posts: 28
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Psm, abs, and brake fluid lights on
My car died on me the other day. Turns out my battery was bad so I replaced it. I still had a bunch of lights on the dash including the battery light. I replaced the alternator yesterday and now the PSM, ABS, and brake fluid lights are still staying on. What is causing this? Any help is greatly appreciated
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01-14-2022, 08:38 AM
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#2
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,647
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Without a scan for codes, anything would be a guess.................
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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01-14-2022, 01:44 PM
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#3
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Registered User
Join Date: Apr 2017
Location: Dyersburg TN
Posts: 28
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I had a reader on it today and it is not showing any codes
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01-14-2022, 02:19 PM
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#4
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,647
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Quote:
Originally Posted by blvsmith
I had a reader on it today and it is not showing any codes
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You need a Porsche specific diagnostic tool..............
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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01-14-2022, 06:01 PM
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#5
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Motorist & Coffee Drinker
Join Date: Jul 2014
Location: Oklahoma
Posts: 3,942
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The PSM and ABS are sensitive to low voltage. The bad battery probably triggered the faults.
For quick troubleshooting I often search with a few key words related to the problem and add, "JFP in PA" in to help filter results.
PSM ABS warning light on 996 turbo. - Pelican Parts Forums
PSM Question
__________________
I am not an attorney, mechanic, or member of the clergy. Following any advice given in my posts is done at your own peril.
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01-15-2022, 08:28 AM
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#6
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,992
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Usually the PMS and ABS lights turn off by themselves after you drive the car for a while, it seems that the car computer needs to verify first that everything is working properly..
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01-16-2022, 03:33 AM
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#7
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1998 Boxster Silver/Red
Join Date: Sep 2017
Location: 92262
Posts: 3,093
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Brake fluid light? What am I missing, here?
__________________
1998 Porsche Boxster
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01-17-2022, 02:55 AM
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#8
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Registered User
Join Date: Apr 2017
Location: Dyersburg TN
Posts: 28
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Quote:
Originally Posted by Gilles
Usually the PMS and ABS lights turn off by themselves after you drive the car for a while, it seems that the car computer needs to verify first that everything is working properly..
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Great info thank you I'll do some driving this week!
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01-17-2022, 01:09 PM
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#9
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Registered User
Join Date: Jul 2019
Location: GTA
Posts: 307
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In addition to driving your car, it would be wise to connect your battery to a charger as not to stress your new alternator. Trickle chargers are a small investment and go a long way.
__________________
2001 Porsche Boxster S
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01-18-2022, 04:48 AM
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#10
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Registered User
Join Date: Apr 2017
Location: Dyersburg TN
Posts: 28
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Quote:
Originally Posted by bcrdukes
In addition to driving your car, it would be wise to connect your battery to a charger as not to stress your new alternator. Trickle chargers are a small investment and go a long way.
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Ok good idea I will
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01-18-2022, 06:01 AM
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#11
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On the slippery slope
Join Date: Mar 2014
Location: Austin and Palm Springs
Posts: 3,799
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Quote:
Originally Posted by Starter986
Brake fluid light? What am I missing, here?
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Yup. There is a sensor in the fluid tank to monitor fluid level
__________________
2004 Boxster S 6 speed - DRL relay hack, Polaris AutoTop DIY
2004 996 Targa Tip
Instructor - San Diego region
2014 Porsche Performance Driving School
2020 BMW X3, 2013 Ram 1500, 2016 Cmax, 2004 F-150 "Big Red"
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