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964 Diagnostic tool


PCGB Member
Does anyone have a diagnostic scanner for the 964? My fans are playing up, but in conversation with Tore Bergvill, I want to check recorded faults, as well as run the servo diagnostics/test as the fault might not actually be the CCU. Thanks Chris
Just had the left side/passenger dash fan replaced, was making an awful racket, and on extraction the basket plastic had disintegrated and parted company from the fan. best way to tell is to get into it and should be able to see what works and what doesn’t
Ouch - those fans are expensive! Its the rear fan that's not working correctly. Doesn't always come on at low speed, although both speeds test OK when the relay is bridged, so resistor is OK. Also want to the test the servo's using the diagnostic facility as they provide feedback to the CCU, which you cant tell just from their movement.
Im in the cotswolds/midlands, but happy to travel a bit if you aren't a million miles away and would be happy to let me use it. Thanks
Have had hassle with that end before, used to blow fuses all the time. Temp sensor on mine had burned out. After I’d bought a replacement motor for the rear fan as well. Still have that if you need one! "Just" a case of splitting the case. Was tempted to use the bypass pipe option as supposed to be not much less effective but got mine sorted
Hi Steven
Can you share details about your OBD tool, please? I have a Bluetooth (for iPhone app) OBD II "dongle" which used to work well with my 997s and I wondered whether buying the Durametric round connector converter would allow me to use the new stuff with the 964?
Otherwise, I am near Guildford and wondered whether your offer of a drive-by loan is still open?!

i’ve been out of the country so sorry slow to respond. an obd scanner wont work you’ll need a hammer or there are other options, but hammer is most complete in terms of abilities. I have everything you need to connect to the car.

sure on borrowing mine, send me a DM with your phone number and we can arrange a time for you to pick it up.


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