Diagnosis/troubleshooting G 0210
NOTE:
Visual inspection: In the next troubleshooting section, please check first that the affected 'pins' on the Tiptronic control unit plug connection and the 'pins' on the 'existing transmission wiring' plug connection are neither damaged nor corroded. Remove any soiling or corrosion/oxidation. Replace damaged parts/wires.
NOTE:
Control unit replacement: Before replacing the 'Tiptronic control unit', the ground connections, power supply and plug connections on the control unit must be checked as OK. Please observe the coding of the control unit. After the test drive, read out the fault memory again with the Porsche System Tester II No. 9588. Additional causes of faults that could damage the 'Tiptronic control unit' should be detected and remedied.
DIAGNOSIS/TROUBLESHOOTING PROCEDURE
| Work instruction | Display OK | If not OK | ||
|---|---|---|---|---|
| 1 | Check wiring from rocker switches to steering column switch: |
|
Go to Step 2 | Replace wiring harness. → End |
| 2 | Read out fault memory in steering column switch (control unit) |
|
Go to Step 3 | Remedy fault. → End |
| 3 | CHECKING INSTRUCTIONS/CAN DATA BUS . | Go to Step 4 | Remedy fault. → End |
|
| 4 | Replace control unit | → End | ||