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T-OBD - Diagnostic tool

Item: 11700

$85,00
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T-OBD is an OBD diagnostics interface for use with the Rennlist Scantool freeware. Easy USB connection to a Windows PC. 16-pin OBD2-style connector.

T-OBD is constructed for use with the Windows freeware Scantool only, and does not work with other software. Please be aware that the Scantool software will not work with other types of OBD-adapters such as Durametric, VAG-Com and similar.

Using the T-OBD in the Porsche 964, 968 and 94-95/1 993 models will need a 19-pin adapter, sold separately.

Scantool features

  • Read/Clear fault codes for the Motronic DME, Alarm, ABS, SRS air bag, climate control CCU and PDAS. (PDAS only on 964)
  • Motronic actuator tests, cycle actuators as resonance flap and fuel injectors
  • Display values from the Motronic’s analog inputs such as the voltage from the air flow meter and temp sensors.
  • Display the state of the Motronic’s idle and wide open throttle switches
  • Display Motronic’s actual operating parameters such as rpm and load
  • Display Motronic’s high/low range AFR trim values along with a live O2 sensor signal
  • Display the state of the PDAS traction control switch.Run actuator test on all CCU features, such as air valve servos and fans
  • System adaptation (964 only) CO value emission adjustment
  • Easy switching between Porsche 964 and 993 settings using batch file

Important information

We make the T-OBD adapter only, and have not made the Scantool software. We are unable to alter or add functions in the software. Scantool is freeware, made by people on Rennlist, the US-based Porsche owner community. 

We have seen several customers reporting problems connecting to the Motronic DME in 993 models with Porsche Drive Block immobilizer. This is a shortcoming of the Scantool software. We have no conclusive solution to this, see the discussion threads on Rennlist. Some describe a rewiring mod that overcome the problem. This problem affect the connection to the DME only, all other units (alarm, ABS etc) can still be contacted.

Most later 993 models (1996-1998) have a 996-type SRS airbag control unit, with a 996 part number. Scantool is incompatible with these units. This also applies to the Bosch "Hammer" diag tool.

Scantool software and T-OBD does not support the special C4 brake bleeding functions.

Please note that the rear-wheel-drive Porsche 964 Carrera (often called C2) have a ABS control unit without OBD diagnostic features or connections. Only the 964 Carrera 4 ABS/PDAS units have OBD capability. However, this applies to the ABS unit only, the Motronic, alarm, air bag and climate control units are available in the C2 models by using a OBD tool.

This product may not be possible to use in 993 models equipped with the rarely seen wide centre console option. (often named as the bat-phone console) The USB cable going to the PC will probably not fit in the deeper car diagnostic connector opening. An OBD extender cable may solve this. (not stocked)

Scantool works fine for reviewing and deleting fault codes in Porsche 968 engine control management, Air bag and Alarm system. However, it is not originally designed for using in 968, some of the engine Actual Values and others may be displayed wrongly.

T-OBD is Made in Norway, and has a USB-interface for connection to a Windows PC. genuine FTDI USB-chipset.

Software and installation manual is available on our Downloads page.