Important notes about As Built configuration and programming
Posted: Mon Aug 07, 2017 1:53 am
Here we post empirical information obtained by us and FORScan users.
1. Write-once bits in configuration memory.
Some configuration bits may have write-once status. It means, they can be changed, but just once. Then they cannot be ever modified. Example - Slave Exists SCL bit in block 726-22-02 of F-150's BdyCM. Outcome is that if no real equipment installed (SCL), module may throw a error code (like U2100 in this case) and some service functions may be not available.
2. Some blocks may be not a real module configuration, but used as a keep-alive memory by modules to store some states (ex. crash event), service events (ex. fuel additive refill) and so on. In some cases direct access to these blocks of data via As Built programming may be limited by module
3. Some blocks of data may have read-only status. So they can be read, but cannot be written. Example: block 720-03 of 2016-2017 Mazda Skyactive IPC module.
4. Sync 3 (APIM module) sends its configuration changes to Ford. So if you change something there, Sync will send these changes when connects to the Internet, and after some time you can see them on Motorocraft site. So far there are no known outcomes of this (like loss of warranty), but it is important to known anyway.
1. Write-once bits in configuration memory.
Some configuration bits may have write-once status. It means, they can be changed, but just once. Then they cannot be ever modified. Example - Slave Exists SCL bit in block 726-22-02 of F-150's BdyCM. Outcome is that if no real equipment installed (SCL), module may throw a error code (like U2100 in this case) and some service functions may be not available.
2. Some blocks may be not a real module configuration, but used as a keep-alive memory by modules to store some states (ex. crash event), service events (ex. fuel additive refill) and so on. In some cases direct access to these blocks of data via As Built programming may be limited by module
3. Some blocks of data may have read-only status. So they can be read, but cannot be written. Example: block 720-03 of 2016-2017 Mazda Skyactive IPC module.
4. Sync 3 (APIM module) sends its configuration changes to Ford. So if you change something there, Sync will send these changes when connects to the Internet, and after some time you can see them on Motorocraft site. So far there are no known outcomes of this (like loss of warranty), but it is important to known anyway.
