Porshe 911 (997). Manual - part 886

PCM screw locking lacquer

4. Screw in the locking screw for the PCM and tighten it.

Subsequent work

Subsequent work for display and PCM operator control unit

Install both covers on centre console. →  23 Removing and installing centre console panel - installing

Reading out PCM display and control unit

Reading from and writing to the PCM display and operator control unit

Note

When installing a new PCM/CDR in a vehicle, the PCM/CDR code specified in IPAS should be
present. Normally, the code is stored in the instrument cluster, and is read out from the PCM/CDR.

• 

You can get the codes from IPAS or from your importer by specifying the vehicle identification
number.

• 

During coding, there should be a guaranteed power supply for the PIWIS tester 9718. It is essential
to connect a battery charger with a current rating of at least 40 A to the vehicle battery.

• 

The PIWIS tester 9718 instructions take precedence and in the event of a discrepancy these are the
instructions that must be followed. Deviations may occur with later software versions.

• 

Diagnostic system: reading out fault memory and activating systems

Installing display and PCM operator control unit

3701

The procedure described here has been structured in general terms; different text or additions may
appear in the PIWIS tester 9718.

• 

1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. >> Continue.

2. Select the vehicle

type.

3. Using the >> key, move from the vehicle type to the list of control units.

4. Select PCM-MMI and press

the >> .

5. In the menu PCM-MMI, select Control unit replacement and press the >> .

6. Select Read coding and press >> .

7. On the screen of the PIWIS tester appears the message Coding read-out complete >> .

8. Switch off ignition and replace the PCM. → 911019 Removing and installing PCM display and operator

control unit

9. Switch on ignition << return to vehicle type, for the control units select Special functions and start

the vehicle handover with F8 .

10. Read out and erase all fault memories.

11. Using the >> change from vehicle type to control units.

12. Select PCM-MMI and press the >> .

13. In the menu PCM-MMI, select Control unit replacement and press the >> .

14. Under the menu Write coding, the data read out (see Section 7) is installed >> .

15. PIWIS tester displays Coding write-in complete >> .

16. In the menu PCM-MMI, select Required &amp; Actual Configuration and press the >> .

17. Compare the Actual/Required listing. Use F8 to start Mapping. All installed audio components will now

be listed with a plus under Actual/Required.

18. Read out the fault memory again and erase as necessary.

19. PCM is now taught.

Programming PCM display and control unit

Programming the display and operator control unit

Note

The procedure described must be applied when a control unit has to be replaced and the tester function
Control unit replacement

 cannot be used.

1. Connect the PIWIS tester 9718 to the vehicle and start it. Switch on the ignition. >> Continue.

2. Switch on ignition << return to vehicle type, for the control units select Special functions and start

the vehicle handover with F8 .

Diagnostic system: reading out fault memory and activating systems

Reading from and writing to the PCM display and operator control unit

3702

3. Read out and erase all fault memories.

4. Switch from the vehicle type to the list of control units

>> .

5. Select PCM and press the >> .

6. In the menu PCM, select PCM2 MMI und press the >> .

7. Select Control unit replacement with the cursor keys and press the >> key.

8. Select Write coding and write in the coding. (Even if no coding data was read out, the required data is

loaded for the control unit.)

9. Select Coding and press >> .

10. Select Equipment and press >> .

The following codings can be performed:

Note

When installing a new PCM/CDR in a vehicle, the PCM/CDR code specified in IPAS should be
present. Normally, the code is stored in the instrument cluster, and is read out from the PCM/CDR.

• 

You can get the codes from IPAS or from your importer by specifying the vehicle identification
number.

• 

During coding, there should be a guaranteed power supply for the PIWIS tester 9718. It is essential
to connect a battery charger with a current rating of at least 40 A to the vehicle battery.

• 

The PIWIS tester 9718 instructions take precedence and in the event of a discrepancy these are the
instructions that must be followed. Deviations may occur with later software versions.

• 

The procedure described here has been structured in general terms; different text or additions may
appear in the PIWIS tester 9718.

• 

11. If the PCM code is not displayed with an *, then select the PCM code, enter, and code with F8 .

12. Select Country coding and the relevant country, and code with

F8 .

13. Select Vehicle type vehicle coding and code with F8 .

Vehicle type vehicle coding

911 (997)

Boxster (987)

14. Select Vehicle version vehicle coding and code with F8 .

Vehicle version vehicle coding

Coupé

Cabriolet

Targa

Diagnostic system: reading out fault memory and activating systems

Programming the display and operator control unit

3703

15. Select Air conditioner and code with F8 .

Air conditioner

Without air conditioner

With air conditioner

16. Select Units and code with F8 .

Units

RoW (°C, litre, km)

UK (°C, gal, mph)

USA (°F, gal, mph)

17. Select Right/left-hand drive vehicle coding and code with F8 .

Right/left-hand drive vehicle coding

Right-hand drive

Left-hand drive

18. Select Windscreen wiper/washer system and code with F8 .

Windscreen wiper/washer system

Not present

Present

19. Select Rain sensor and code with F8 .

Rain sensor

Not present

Present

20. Select Electronic air conditioner and code with F8 .

Electronic air conditioner

Not installed

Installed

21. Select Daytime driving lights and code with F8 .

Diagnostic system: reading out fault memory and activating systems

Programming the display and operator control unit

3704