Total OBD & ECU Auto Diagnostics

Total OBD & ECU Auto Diagnostics

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Passenger compartment wiring harness for 968 CS 97-01

Repairing the Tiptronic wiring harness 97-03

Routing the sensor wire at the Tiptronic transmission 97-07

Wiring diagram mod.'93 97-31

Wiring diagram mod. '94 97-63

Wiring diagram mod. '95 97-95

Table of contents 1

Printed in Germany - XI, 1999

968 CS

Wiring diagrams

Passenger compartment wiring harness for 968 CS

When replacing the passenger compartment wiring harness, the spare wiring harness must be modified as only the harness for the 968 is supplied by the spares department. Modifications are required at the clock connector.

1. Open 7-pin coupling housing (outside temperature indicator on 968) and remove wire.

2. Cut off terminal sockets of brown/blue and blue/green wires. Insulate wires and tie them aside.

3. Fit the remaining wires into 4-pin housing according to wiring diagram or below table (may be removed from old wiring harness).

4. Tie back wire for analog clock (center console).

Repairing the Tiptronic wiring harness

1. Disconnect battery.

2. Remove trunk floor carpeting.

3. Undo right-hand side trim in Tiptronic control unit area.


Also remove vibration damper on Cabriolet vehicles.

4. Remove control unit.

Wiring Harness Porsche 964 Front Lamp

6. Disconnect transmission wiring connectors.

Porsche 930 Tunell Harness

5. Open tie-wrap.

Porsche 930 Tunell Harness

7. Detach wiring harness from transmission and push it out across hole in passenger compartment.

8. Cut off wiring harness to transmission at a distance of 310 mm from control unit connector.

Wiring Porsche 968

9. Remove cloth tape along a length of approx. 30 mm.

10. Strip all wires (except sensor wire to speedometer) along a length of 4 mm.

11. Solder connectors to the following wires:

- green

- brown

- orange


Identify the brown wire among three brown wires using an ohmmeter or a continuity tester. The brown wire required is routed to pin 44 of the Tiptronic control unit.

12. Equip the socket housing according to the below list and latch the housing:

6 - orange

13. Solder connectors to the following wires:

- purple

14. Equip pin housing according to the below list and latch the housing:

8 - purple

15. Open control unit connector.

16. Push handle cover back onto wiring harness.

17. Cut sensor wire at a distance of 100 mm from the contact carrier.


18. Remove insulating sleeving.

19. Twist exposed shield, cut down to 60 mm and insulate with shrink-fit hose to a length of 10 mm.

20. Shorten brown wire to 80 mm and white wire to 70 mm and strip a length of 10 mm each.

21. Route sensor wire of repair wiring harness across handle cover and crimp with wires inside the connector.

Wiring Porsche 968


To facilitate identification, the Fig. shows the control wire only. The other wires are omitted.

22. Insulate crimp connectors with shrink-fit hose.

23. Reassemble control unit connector.

24. Place control unit connector into position, connect repair wiring harness and Tiptronic wiring harness and fit Tiptronic control unit complete with bracket.

25. Tie both joints together using a tie-wrap and attach to control unit bracket:

- Coupe: with sheet-metal nut and sheet-metal screw

- Cabriolet: with tie-wrap Note

Observe wire routing modified with regard to standard routing (refer to Fig. 1661-97).

26. Connect sensor wire to transmission wiring harness using a length of tape.

Also attach wiring harness to tucker stud using a length of perforated tape.

27. Use "Drive links" menu on System Tester 9288 to check operation of solenoids and gear display.

28. Check operation of rpm sensor using the "Actual values" menu on System Tester

Porsche 996 Wiring Harness Tiptronic


Routing the sensor wire at the Tiptronic transmission


Assembly of the sensor wire to the transmission has been modified. When repairing the Tiptronic wiring harness on vehicles featuring the former type of fitting, adopt the new fitting type.

1. Fit three wire clamps (Part No. 999 651 262 09).

2. Connect sensor wire to rpm sensor.

3. Attach wire with three wire clips (Part No. 999 651 162 40).

Porsche 968 Parts AirGt3 Sub Box

4. Attach sensor wire with two U-clamps to the reinforcing webs of the transmission housing.

Routing the sensor wire at the Tiptronic transmission

Printed in Germany - XI, 1994

Wiring Diagram Type 968 Model 92

Sheet 1

Sheet 2

Sheet 3

Sheet 4

Sheet 4a



Instrument Cluster and Sender

Heating, Airconditioning, Ventilating, Power Seats, Wipe- and Wash Cleaners

Two-Tone Horns, Mirrors, Lifting Roof, Power Window Regulator, Tailgate Unlocking

For vehicles as of VIN 96 NS 80 0102 RoW 96 NS 82 0067 USA

Sheet 5


- 50

Engine Compartment, Cruise Control

Sheet 6


- 60

Central Electric

Sheet 7


- 70

Central Locks, Alarm System

Sheet 8


- 80

Fog Light, Rear Fog Light

Sheet 9


- 90


Sheet 10


- 100

ABS, Airbag

Sheet 11


- 110

Wiring 968 Cabriolet

Sheet 12


- 120


Sheet 13

Construction Components

Sheet 14

Plug Connections, Ground Points,


Wiring Diagram Type 968 Model 92

The wiring diagram consists of 12 individual wiring diagrams, 1 sheet construction components and 1 sheet plug connections and ground points. These are divided into coordinate fields.

Each individual wiring diagram contains a part of the central-electrics box in a dashdotted frame.

This part of the central-electrics box shows all the lines and relays necessary for the individual wiring diagram.

The earth/ground points are identified by "MP" and their location is shown in a vehicle diagram. The 20-pin connectors on the central-electrics box are clipped together out of 5 parts. Part 1, with the moduled-on fastening lug, is the "starting element". Parts 2, 3 and 4 are "module elements".

Parts 1 to 4 are identified by the numbers 1 5.

Part 5 is a "coding element".

The designations of the plug connections in the wiring diagram of the central-electrics box refer to the "starting element" from, for example, B 11 15, and to the first module element from

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  • mewael petros
    How do the wiring harnesses for a porsche 968 manual versus an automatic?
    7 months ago

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