ToreB

My Bosch KTS301 (English Porsche version 8.1) show an error message when trying to connect to a 1995 993 C2 Tip. The hammer show "Internal error number 42" after some time while scanning for OBD units. (After selecting Porsche 911)
Two of my hammers does the same in this car, so I suspect this to be a fault in the car or it's cabling, not in the hammer itself. Both hammers perform flawlessly in my '95 993.

I know there's a detailed KTS 301 User Manual, this could maybe contain a list of error messages and their meanings.
Can anyone help?

Cheers,
Tore

leeshephard

Think Johnttt on 911uk.com has one:

http://911uk.com/viewtopic.php?t=821...=asc&start=374

ToreB

Thanks for pointing this out Lee. I'll ask him if he has a more detailed user manual than the two he has linked to in his post. I have the impression that there exist a deeper technical documentation of the hammer than the more user-oriented 968- and 993 stuff in jonttt's post.
Cheers,
Tore

JasonAndreas

I just went through the original 48 page manual and the Compacsoft pamphlets for the different motronics and I don't see anything about internal errors. Can you monitor the L/K line initialization to see which address code/control unit is causing the problem?

ToreB

Thank you for your help jasonandreas, I appreciate this.
Unfortunately, I do not have the car within reach. An alternative would be to try to disable the different OBD-equipped units in the car one by one and see if the problem disappears.
I will start with the Tiptronic transmission, this is the extra unit compared to the other cars I have tried these hammers.
Cheers,
Tore

JasonAndreas

Which ROM module are you running in the hammer? The one FROM Porsche or the generic that supports some of the Porsche control units?

ToreB

As mentioned in my initial post, I run Porsche version 8.1, not the generic type.
Cheers,
Tore

cobalt

The info I have says no contact with module you might try removing it and reinstalling it.

ToreB

cobalt, many thanks. What type of documentation do you have?
It is strange that the Germans decided to make the KTS abort all scanning like this and prohibit contacting the other units. I am also baffled of the error name, it is most confusing.
I have done some fault finding, (no oscilloscope at hand) and started pulling fuses for the different OBD-connected units in the car in question.
When we disable the Tiptronic transmission, the hammer display the normal Menu with the other OBD units. (DME, CCU, SRS Airbag, Alarm and ABS 5)
The hammer clearly does not like the Tiptronic, either due to erroneous or unexpected OBD feedback when trying to contact it, or maybe that it is disturbing the OBD bus in some way.

I have never seen compatibility problems in hammers before, and I am especially surprised to see this in a '95 993 with the latest KTS 301 software dated 1995 as well.
Cheers,
Tore

ToreB

I'm still trying to find any detailed information on the above mentioned error code. cobalt did a fantastic job trying to find this for me, (thanks!) but I still need some help here.
Anyone else have a KTS 301 or 300 manual that explains the meaning of “Internal error code 42”?
Cheers,
Tore

geolab

good luck Tore

JasonAndreas

Regular tiptronic error code #42 is "Faulty Control Unit" i.e. Replace Control Unit. I don't see anything about internal fault codes in the manuals for the "Pocket-Systemtester KTS 300" or the 500 or the 650, in English or German.

ToreB

Ah, yes, this might be a fault code from the transmission control unit. It's strange the Bosch designers made the hammer completely white out on this and won't allow connection to other things. It could just ignore the Tip if it cannot communicate with it and display the other units.
If the Tiptronic is reporting this error code in a normal way, it should normally be displayed under "Fault Codes" in the menu system. If the error is reported, the control unit must be working. The transmission is working normally anyway. This is strange.

Scantool have these definitions of fault codes in the Tip:
;Tiptronic trouble codes
11 – Signal Implausible
13 – Voltage for drive links failed
14 – Voltage for sensors failed
21 – RPM signal from DME failed
22 – Load signal from DME failed
23 – Throttle Pot. Failed
24 – Change of ignition timing
31 – Solenoid valve 1 failed
32 – Solenoid valve 2 failed
33 – Solenoid valve torque converter clutch failed
34 – Pressure regulator failed
35 – Selector lever switch/transmission failed
36 – Transmission speed sensor failed
37 – Transmission temp. sensor failed
38 – Selector lever switch/ transmission partial failure
42 – Transmission control unit failure
43 – Transmission control unit failure
44 – Transmission control unit failure
45 – Downshift fault in rev limiter
46 – Downshift fault in rev limiter
51 – Manual program switch failed
52 – Tip. Switch up and down failed
53 – Kick down switch failed
54 – Transverse accel. Sensor failed
55 – Speed signal 1 from ABS control unit failed
56 – Input to combination instrument failed
57 – Transmission oil cooler blower relay failed
59 – Switch R-position failed
60 – Reverse light relay failed

geolab

here you go:

mojorizing

Tore,
I have a test device that emulates a car and connects to my Hammer. I've sent incorrect data (serial number, version number, etc. ) after the hammer interrogates the ecu, be it CCU, motronic unit, etc. I've never seen that internal error, though I haven't been aware of such thing. It is hard to imagine that the hammer locks up during the interrogation stage.

I'll experiment further to see if I can duplicate the problem.