Porsche PCM Installation And Conversion Instructions page 26

9
Cayman (981)
24/13
9110
ENU
NOTICE
Voltage drop
• Risk of irreparable damage to control unit
• Risk of damage to control unit
• Fault entries in the control unit
• Coding in the control unit is aborted
• Malfunctions in control unit, even during programming
 Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.
 Ensure that the power supply is not interrupted during programming.
 Connect battery charger/power supply suitable for AGM Type batteries, recommended current rating
of 90A fixed voltage 13.5V to 14.5V, tool number VAS 5908.
The 9900 - PIWIS Tester III instructions take precedence since the description may be different
with later Tester releases.
The procedure described here has been structured in general terms; different text or additional infor-
mation may be displayed.
7 Code control units.
7.1
7.2
7.3
7.4
Mar 31, 2022
Page 26 of 30
Installation and Conversion Instructions
Information
9818 - PIWIS Tester II must now be connected and ignition switched on.
Select the required vehicle type. PIWIS Tester II Diagnostics starts.
Cancel production mode.
Additional menu must now be selected by pressing •F7". Press •F11" to
7.3.1
confirm the question "Create vehicle analysis log (VAL)?".
Select the Vehicle handover function and follow the instructions on the Tester.
7.3.2
Once the vehicle handover log has been created, press •F11" to return to the list
of control units.
Write basic coding from PCM.
7.4.1 Select the PCM/CDR control unit and switch to the Maintenance/repairs menu.
Select Control unit replacement. Press •F12" to continue.
7.4.2
Select Write data mode. Press •F12" to continue.
7.4.3
Press •F8" to write basic information.
Wait until the message Coding has been written successfully appears. Press
•F12" to continue.
Tequipment