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the EPROM installed in the control module will be programmed in the same manner.
Note: The EPROM in a basic replacement module does not need to be replaced
since it only contains the resident data and nothing else.
9
EPROMs & EEPROMs
Review Questions
1. Do EPROMs always need to be replaced in an Engine Control Module?
2. What does Flash programming mean?
3. Why does BMW limit the number of times a control module containing/using a
EEPROM can be reprogrammed? What is the BMW limit?
10
EPROMs & EEPROMs
Review Questions
1. What is the purpose of a ZCS code in a vehicle?
2. Where is the ZCS code stored in a vehicle?
3. How can you determine what modules in the vehicle are codeable via the ZCS
code?
4. What is the purpose of a Vehicle Order what information does it contain?
5. When was the VO structure introduced?
6. Which models utilize a VO structure?
7. How can the VO information of a vehicle be accessed?
14
Vehicle Coding Information
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