Assistance Systems
Porsche Lane Keep Assist (LKA) is an assistance system that uses a camera to detect divider line markings on the road and helps the driver stay in the lane by making corrective steering inputs.
RISK Moderate
COMPLEXITY Moderate
TESTED 992.1 MY20 PIWIS4
Start Diagnostics, go to Overview screen
Press F7 Additional Menu
Select Maintenance of vehicle data
Press F12 twice until you see a list of PR numbers
Set GESCHWINDIGKEITSREGELANLAGE to 3V1 - ACC HIGH END MIT INNODRIVEÂ
Set SPURHALTEASSISTENT to 612 - SPURHALTE+STAUASSISTENT (ALDW+ACA)
Set SPURWECHSEL-/SPURHALTEASSISTENT to 7Y1 - SPURWECHSELASSISTENT (BSD)
Press F12 twice to see the screen showing the coding values CV that have been changed
Press F8 to WRITE values
Press F11 twice to return to the Overview screen
Option 1: auto code all modules
Press F6 to select all modules
Press Coding/Programming, select Automatic Coding. Press F12
Wait for coding to complete
Note: this is very likely overkill and you may need more than 1 pass at this
Option 2: selective auto coding (needs further validation)
Pass 1: Gateway & PCM coding
Select Gateway [0x19) and MIB (Zentralrechner) [0x5F]
Press Coding/Programming, select Automatic Coding. Press F12
Pass 2: Steering & Chassis coding
Select ZFAS (Zentrales Fahrer Assistenz System) [0xA5] module
Press Coding/Programming, select Automatic Coding. Press F12
Select EPS (Lenkhilfe) [0x44]
Select Manual Coding without coding rules, Press F12
TBC required on MY20 EPS units to force the lane-centering torque maps
Set Kodierwert: Bitfield Assitent System Monitor (ASM) to aktiv
Set Kodierwert: Bitfield Heading_control_assistant to aktiv
Press F8 to WRITE.
Pass 3: Kombi coding
Select the Kombi [0x17]
Press Coding/Programming, select Automatic Coding. Press F12
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