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1999 Carrera4. 5 years I have chased this intermittent problem. Sometimes the car refuses to start. Starter will not turn over. All maintainance has been done at a dealer service center. They say they've never seen this issue before. It's not DME they say. Every component from entire key system to the starter, as part of the security system/start permission, has been replaced. Car can go for months with no issue, start every time, then it's like a gremlin grabs it and it will not start. No error code(s) reported. Everything appears normal and proper with dash lights. Might be a minute, an hour, a day, a week... and it starts. You never know if it will start or not.
Possible weak point in the wiring? Software issue? I'm flying blind on this.
Has anyone experienced anything like this?
By Scott Clinton
I have a 2002 Porsche 996 Cabrio and earlier this year the immobolizer under the seat got wet. I purchased a used immobilizer, key for and ECU behind the rear seat. All of the parts came from the some year model etc. I put the parts in myself and everything worked great. Now i need a new key fob or atleast I think i do. The remote work sometimes and most of the time is doesn't. When its not working I cant lock or unlock the car with the remote and the front trunk will not open with the fob or the switch inside the car. When the fob works everthing works as it should in the car. Do you think this is a key fob issue or something else? Can i even get a key head programmed since these part are from a donor car? I do have the vin of the donor car.
My Cayenne S 2008 won't start. I turn the ignition key and all I see is the Porsche (red) logo turn on and the mileage counter light turn on. Steering is locked, the head unit works and I can hear audio. Normally I would hear a click and then all the indicator lights would on and I would hear the soft beeps but now I don't hear anything. There is no steering / ignition faulty codes showing up on the dashboard.
Has anyone experienced this? Appreciate the help.
By Philip Adler
Since I bought my Boxster the key-fob never worked, so my usual practice
is to put my key into the cylinder and turn it to unlock.
So this week, I did the procedure I've done hundreds of times, when after opening,
the resistance I've always felt while turning the lock disappeared! I could now
turn the key left and right, a full 180 degrees without any resistance. No movement
in the door latch.
And yet, when I roll the car down the driveway, the door locks do engage and so does the
latch. Something mechanical must have slipped off the cylinder assembly, and I know I'll
have to take the door apart to find out,
I'm wondering if anyone has had the same situation and what they've done to fix it.
I have a tough question for any advanced Renntech users who have either stripped a 997 back to minimum wiring for racing, or fixed key issues
Can anyone help with my alarm issues.
Im building a 997 Track car- using a salvage chassis and the remaining parts from a rolled and written off cabriolet. Im think the key worked to unlock to car before i pulled it apart, but cant be certain as the engine was already out so there were limit functions to activate then.
Since moving the dashboard and whole wiring loom into race chassis, I can unlock the doors (yes, its the correct key, ive moved the doors over too), and the dashboard lights up to tell me the current odometer values. However the whole time from when the battery is connected, the alarm siren is going off (currently a clamp muffles that noise to save the neighbors). I can put the key in the barrel, rotate, and then still remove it (the Barrel lock appears to electrically be live, as it releases the key).
My guess if that the key has lost its coding for the alarm system, but I've tried following these instructions, https://rennlist.com/forums/997-foru...working-2.html,
with all combinations of button holding, pushing the hazard light switch, foot on brake, and key in/out barrel .... without any success in recoding the key.
Its worth noting the windows dont go through the usual drop down upon lifting the door latch sequence, im assuming this is due to the alarm running.
- my options seem to be getting the local agent to reprogram the key
- are there any other steps i should try to revive the key. I do only have 1 for the wrecked chassis's system
- a final last though is am i missing some switch that needs bridging from the cabriolet circuits to tell if the roof is down/up