Porshe 911 (997). Manual - part 843

- Preliminary work
- Removing air-conditioning system regulator
- Installing air-conditioning system regulator
- Subsequent work
- Coding air-conditioning regulator

Tools

Designation

Type

Number

Explanation

PIWIS Tester

special tool

9718

Preliminary work

Preliminary work for removing and installing air-conditioning system
regulator

1. Remove left and right cover for the centre console. →  21 Removing and installing centre console

panel - removing

2. Move gear-shift lever to rear position.

Removing air-conditioning system regulator

Removing air-conditioning system regulator

Installation Location:

3529

Releasing air-conditioning control

1. Using a screwdriver, press the side holder to the left and right and pull out the air conditioning

control from the installation slot.

Releasing electric connectors

2. Release the electrical -a- and pull off.

Diagnostic system: reading out fault memory and activating systems

Removing air-conditioning system regulator

3530

Installing air-conditioning system regulator

Installing air-conditioning system regulator

Plugging in electric connector

1. Insert electrical plugs in the air-conditioning system regulator until they are felt to

engage.

Sliding in air-conditioning system regulator

2. Slide the air-conditioning system regulator into the installation slot until it clicks into

place.

Subsequent work

Subsequent work for the air-conditioning system regulator

1. Install left and right side cover for centre console. →  23 Removing and installing centre console

cover - installing

Diagnostic system: reading out fault memory and activating systems

 Installing air-conditioning system regulator

3531

Coding air-conditioning regulator

Coding the air-conditioning control

Note

If the control unit for the air-conditioning control is replaced, it must be programmed using the PIWIS Tester
9718

. This is to adapt the control unit to the vehicle and equipment.

During coding, it is essential to guarantee the 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 Porsche System Tester.

1. Connect the PIWIS Tester 9718 to the vehicle and start the System Tester. Switch on ignition. >>

continue.

2. Select vehicle type using the cursor keys. >> continue.

3. Select air conditioner with the cursor keys and press the >> key.

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

5. Select Read out values (codings) with the cursor keys and press the >> key.

6. The message Codes successfully read out appears on the screen of the Porsche System Tester. Press >> .

7. Switch off ignition, replace air conditioning control.

8. Switch to the Special functions menu and perform the vehicle handover using the F8 key.

9. In the Special functions menu, erase All fault memories by pressing

>> .

10. Carry out automatic search of control units.

11. In the menu Write in data >> , the data read-out is installed.

12. System Tester displays Codes successfully written in. Press >> .

13. Select System test with the cursor keys and press the >>

key.

14. The Tester starts the system test, follow the instructions on the

Tester.

15. Quit menu, carry out a test drive, and check operation of the air conditioning control. Read out

fault memory.

997110, 997111, 997120, 997121, 997310, 997311, 997320, 997321, 997410, 997411, 997430, 997431,
997610, 997611, 997620, 997621

Diagnostic system: reading out fault memory and activating systems

 Coding air-conditioning regulator

3532