Component Tests and General Diagnostics

Troubleshooting With No Control Module Connected

NOTE: Porsche System Tester II 9588 and Tiptronic control unit are not connected.

Overview

Diagnostic conditions
- Ignition on
- The fuses of the Tiptronic control unit are OK
- Battery voltage is OK
- Plug on Tiptronic control unit fitted correctly
- Battery for Porsche System Tester II 9588 charged

Possible cause of fault
- Incorrect vehicle type selected in Porsche System Tester II 9588
- Porsche System Tester II 9588 is not connected correctly or is faulty
- Power supply to the Tiptronic control unit is not OK
- K-line to Tiptronic control unit faulty
- CAN drive does not function
- Tiptronic control unit does not function

Affected pins
Tiptronic control module plug:
- Pin 27 terminal 15 power supply via fuse F51/fuse carrier at right of dashboard
- Pin 28 terminal 15 power supply via fuse F51/fuse carrier at right of dashboard
- Pin 3 terminal 30 power supply via fuse F29/fuse carrier at right of dashboard
- Pin 1 ground from body ground pin MB26
- Pin 2 ground from body ground pin MB26
- Pin 46 CAN drive (high)
- Pin 34 CAN drive (low)

Diagnostic box in driver's footwell

Pin 1 - 16:

Diagnosis/troubleshooting G 0210

Work Instruction 1 - 3:

Work Instruction 4 - 7:

Work Instruction 8 - 10: