944919 Removing and installing control unit for front-end electronics
WM 944919 Removing and installing control unit for front-end electronics
Tools
Preliminary work
1. If a new control unit has to be installed, the values/coding must be read out using PIWIS Tester II 9818 prior to removing the "old" control unit. -> 944955 Front-end electronics 944955 Replacing control unit for front-end electronics.
2. Remove trim panel under dashboard on left. -> 701919 Removing and installing trim panel under dashboard - section on "Removing" 701919 Removing and installing trim panel under dashboard
Removing control unit for front-end electronics
Information
Always comply with the regulations for handling ESD-sensitive components!
- Assembly work must only be carried out if the mechanic is wearing the working clothes and shoes approved by Porsche.
- The new part must only be removed from the ESD (electrostatic discharge) protective packaging just before installation and at the position at which the part is to be installed.
- Never touch the electric pins and plug contacts.
Installation position of control unit for front-end electronics
NOTICE
Voltage peaks
- Risk of damage to electrical load or to the control unit
-> Remove remote control and switch off ignition before disconnecting or removing electrical load.
1. Swivel the locking clip -a- down by 90° and unplug the two electric plug connections -1-.
Unplugging connector for front-end electronics control unit
2. Release three electric plug connections -2- ( -a- ) and unplug them.
3. Press the locking lugs -4- outwards and unclip the control unit from the bracket -3-. The bracket -3- remains installed.
Unclipping control unit for front-end electronics
Installing control unit for front-end electronics
Information
Always comply with the regulations for handling ESD-sensitive components!
- Assembly work must only be carried out if the mechanic is wearing the working clothes and shoes approved by Porsche.
- The new part must only be removed from the ESD (electrostatic discharge) protective packaging just before installation and at the position at which the part is to be installed.
- Never touch the electric pins and plug contacts.
1. Position the front-end electronics control unit in the bracket -3- and clip it in at the locking lugs -4-.
Clipping in control unit for front-end electronics
2. Plug in two electric plug connections -1- and swivel the locking clip -a- up by 90° until the locking clip engages securely.
Plugging in connector for front-end electronics control unit
3. Plug in three electric plug connections -2- until they engage securely.
Subsequent work
1. Install trim panel under dashboard. -> 701919 Removing and installing trim panel under dashboard - section on "Installing" 701919 Removing and installing trim panel under dashboard
2. If the control unit was replaced, the "new" control unit must be adapted to suit the vehicle using PIWIS Tester II 9818. -> 944955 Front-end electronics 944955 Replacing control unit for front-end electronics.