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Hoecht replied to Hoecht's topic in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)Will scan it again this week. Had the cluster out and disassembled it. Physically moved needle back to zero. Checked for broken solder connections and engagement of connectors. No faults found. Reassembled the cluster, refitted to vehicle, Speedo needle climbs in steps no matter what speed vehicle is driving at and never returns to zero. However the digital speedometer readout works properly. I'm assuming whatever output drives the meter is at fault. Assuming..... Yeah I know. Never assume anything.
Hoecht posted a topic in 996 Series (Carrera, Carrera 4, Carrera 4S, Targa)I have a 99 996 that the speedo needle is pegged at 300kph (max) --- Can bus fault in ECM. Any suggestions?
is still turning wrenches
Went to the dealer. Paid $155.00 so they could tell me the roof would not calibrate. They also suggested that it would be trial and error for the tech to find out what is the problem. I spent a few minutes discussing it with two techs, neither of which was much help. So I will see if I can get my hands on a wiring diagram, and get a look at the microswitches as the roof closes/opens to see if something is changing that shouldn't be. I wonder if the front latch has anything to do with it, as it moves to retract into the top just before the system faults-out and ceases operation.
Just completed repairing and refitting the clamshell drive unit on a 1999 Carrera cab, set the potentiometer for 6.2K ohms, cleared all faults with durametric, roof opens to halfway point, then sets operation timeout fault, flashes warning indicator and ceases operation. My question to anyone who knows is "How do I calibrate the roof without the PST2" as Durametric does not offer this function. :help: All window and roof functions are otherwise synchronized, I'm assuming the position of the roof was incorrect when I reinstalled the potentiometer. Note, my brain is starting to hurt a bit, and I am re-kindling an old love of early cars. :thankyou: