Symptom Related Diagnostic Procedures

WM 247025 Eliminating symptoms - Engine: Re-programming DME control unit (and PDK control unit) ("Check Engine" light comes on briefly after starting engine/SY2710)

Tools





Technical values





General information

Symptom

The "Check Engine" warning light in the instrument cluster might stay on for a second immediately after starting the engine although no fault is entered in the DME control unit.

Causes and remedial action

Cause

Delayed data exchange between control units.

Remedial action

Re-program the DME control unit (the PDK control unit will also be re-programmed automatically).

Tools and materials

- PIWIS Tester II 9818 with test software version 6.000 (or higher) installed

- Battery charger HFL 65 WE 1353 (current rating of at least 40 A)

Re-programming DME control unit

NOTICE

Programming interrupted

- Malfunctions in control unit
- Risk of damage to control unit

-> Before starting work, connect a suitable battery charger with a current rating of at least => Nominal value: 40 A to the jump-start terminals in the engine compartment.
-> For vehicles with Porsche Entry & Drive, remove the control panel from the ignition lock and instead of the control panel insert the original vehicle key into the ignition lock. Keep the control panel in a safe place.
-> Switch on the ignition using the original vehicle key for the duration of the work, otherwise the ignition will be switched off automatically after 10 minutes and control unit programming will be interrupted.

1. Connect PIWIS Tester II with installed test software version 6.000 (or higher) to the vehicle and switch it on.
2. Switch on the ignition using the original vehicle key.
3. Call up the => 'Diagnostics' menu and select the required vehicle type. The diagnostic application starts.
4. Select => DME control unit in the => 'Control unit selection' menu and confirm by pressing F12.
5. Select => 'Programming' in the top menu bar.
6. Select 'Automatic programming' and press F12 to confirm.

Information

When you select the DME control unit, the PDK control unit is also programmed automatically.
Both drive control units, DME and PDK, are always programmed together.

This selection is obligatory and cannot be changed.

7. Press F8 to start programming:
The message "Performing programming." will appear at the top of the display.
Programming must not be interrupted.
As soon as programming is complete, the message "Programming has been completed successfully" will appear at the top of the display.
The progress bar at the bottom of the display shows 100% "Complete".
8. Conclude programming:
Press F12 to continue.
9. Read and erase all fault memories.
If control units are found to have faults, which cannot be erased and are not caused by control unit programming, these faults must be located and corrected.
10. Switch off ignition.
11. Switch off the PIWIS Tester and disconnect it from the vehicle.
12. On vehicles with Porsche "Entry & Drive", replace the original vehicle key in the ignition lock with the control panel again.

End of remedial action.

Working time

24702500: Programming DME control unit; Labor time 80 TU