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CDR23 Control Unit Function



CDR23 Control Unit Function

Terminating resistors on the CAN
Terminating resistors are fitted to each end of the wiring to prevent reflection on the wiring. These terminating resistors are integrated into each control unit. The interconnection prevents the resistors from being measured with the ohmmeter from the outside.

CAN comfort
Communication between the Porsche System Tester II 9588 and the MOST control units only takes place via the K lead to the instrument cluster. The data is transferred from the instrument cluster gateway to the MOST control units via CAN comfort to the CDR23 gateway and via the optical MOST outside the CDR23.

CD changer (CDC)
The CDC is available as an optional feature and is linked to the CDR23 via the optical waveguide.

Coding table


Coding Table (Part 1):




Coding Table (Part 2):




Coding Table (Part 3):






Coding
Coding of the CDR23 can be performed using the Modify coding menu item.

Menu item
- CDR23 code

Function
Under this menu item, the CDR23 code can be entered after replacing the CDR23.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the CDR23 function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select CDR23 code in the CDR23 coding menu and confirm with the >> key
- Enter the CDR23 code and code with the F8 key

Menu item
- Traffic broadcast loudspeaker boost

Function
Using this menu item, you can code the traffic broadcast loudspeaker boost.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Traffic broadcast loudspeaker boost in the CDR23 coding menu and confirm with the >> key
- Enter the desired value for the traffic broadcast loudspeaker boost and code with F8 key

Menu item
- GAL (noise-dependent loudspeaker boost)

Function
Using this menu item, you can code the loudspeaker boost, depending on the noise level:
- Connect and start the Porsche System Tester II 9588 and switch on the ignition.
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units selection menu and confirm with the >> key
- Select CDR23 in the CDR23 function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select GAL in the CDR23 coding menu and confirm with the >> key
- Enter the desired noise-dependent loudspeaker boost and code with the F8 key.

Menu item
- Vehicle type vehicle coding

Function
Using this menu item, the vehicle type vehicle coding can be entered.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Vehicle type vehicle coding in the CDR23 menu and confirm with the >> key.
- Select vehicle type 911 Turbo (996) and code with the F8 key.

Menu item
- Vehicle version vehicle coding

Function
Using this menu item, you can code the vehicle version:
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Vehicle version vehicle coding in the CDR23 menu and confirm with the >> key.
- Select vehicle version as required and code with the F8 key.

Menu item
- Air conditioning, with/without

Function
Using this menu item, you can code the equipment with/without air conditioning:
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Air conditioning with/without in the CDR23 coding menu and confirm with the >> key.
- Depending on the equipment, select "with" or "without" and code with the F8 key

Menu item
- Right/left-hand drive vehicle coding

Function
Using this menu item, you can code the right/left-hand drive vehicle coding:
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Right/left-hand drive vehicle coding in the CDR23 coding menu and confirm with the >> key.
- Enter the equipment present and code with the F8 key

Menu item
- Production mode

Function
Using this menu item, you can switch off Production mode ON (low-current mode) of the CDR23 on delivery of the vehicle (the current status is not displayed).
- Connect and start the Porsche System Tester II 9588 and switch on the ignition.
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units menu and confirm with the >> key.
- Select CDR23 in the 911 Turbo (996) function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Production mode on/off in the CDR23 coding menu and confirm with the >> key.
- Select Production mode ON with the > key and code with the F8 key.

Menu item
- Tuner parameters

Function
Using this menu item, you can code the tuner parameters (country-specific tuner setting) for the country of registration.
- Connect and start the Porsche System Tester II 9588 and switch on the ignition
- Select 911 Turbo (996) in the Vehicle type menu and confirm with the ->| key
- Select PCM in the Control units selection menu and confirm with the >> key
- Select CDR23 in the CDR23 function selection menu and confirm with the >> key.
- Select Coding in the CDR23 function selection menu and confirm with the >> key
- Select Tuner parameters in the CDR23 menu and confirm with the >> key.
- Select the Country code corresponding to the country of registration using the > key and code with the F8 key.
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